Merge pull request #1109 from GitbookIO/3.0.0

Version 3.0.0

281 files changed, 7634 insertions, 34190 deletions

diff --git a/.eslintignore b/.eslintignore
index 9599d9a..c6e8e21 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1 +1,2 @@
-theme/**/*
+docs/**/*
+test/node_modules/**/*
diff --git a/.gitbook b/.gitbook
new file mode 100644
index 0000000..ffcee85
--- /dev/null
+++ b/.gitbook
@@ -0,0 +1 @@
+./docs
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 9550e4f..27dec83 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,7 +22,14 @@ build/Release
 # Dependency directory
 # Deployed apps should consider commenting this line out:
 # see https://npmjs.org/doc/faq.html#Should-I-check-my-node_modules-folder-into-git
-node_modules
+/node_modules
 
 # vim swapfile
 *.swp
+
+# Output of documentation
+docs/_book
+
+book.pdf
+book.epub
+book.mobi
diff --git a/.travis.yml b/.travis.yml
index 6326f67..8de84e7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,3 +6,5 @@ node_js:
   - "0.12"
 before_install:
   - npm install svgexport -g
+after_success:
+  - npm run lint
diff --git a/CHANGES.md b/CHANGES.md
index e1dbf9f..af432ea 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,20 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
+## 3.x.x (unreleased)
+- Summary can contain external links and anchors (Fix [#776](https://github.com/GitbookIO/gitbook/issues/776))
+- Summary can contain differents entitled sections
+- Glossary is generated as a normal page
+- Headings are no longer annotated with glossary terms
+- Themes are now published as a plugin, with ability to extend it from the book source
+- `links.sidebar` configuration is no longer supported, use summary sections instead
+- `pdf.headerTemplate` and `pdf.footerTemplate` have been replaced by a template in theme/book: `_layout/ebook/pdf_header.html` and `_layout/ebook/pdf_footer.html`
+- Markdown parser is now using CommonMark
+- Root folder for the book can be specified in a `.gitbook` file
+- Multi-lingual books share assets folder
+- YAML front matter is parsed and page's description can be specified in it
+- Fix `uk` translation
+
 ## 2.6.7
 - Fix bug with filenames including spaces
 - Add Turkish and Catalan translations
diff --git a/bin/gitbook.js b/bin/gitbook.js
index 5f47420..5cadbc9 100755
--- a/bin/gitbook.js
+++ b/bin/gitbook.js
@@ -1,4 +1,5 @@
 #! /usr/bin/env node
+/* eslint-disable no-console */
 
 var color = require('bash-color');
 
diff --git a/docs/README.md b/docs/README.md
new file mode 100644
index 0000000..6febb43
--- /dev/null
+++ b/docs/README.md
@@ -0,0 +1,22 @@
+# GitBook Format Documentation
+
+> This documentation is for GitBook version **{{ book.version }}**
+
+GitBook is a command line tool (and Node.js library) for building beautiful books using GitHub/Git and Markdown (or AsciiDoc). Here is an example: [Learn Javascript](https://www.gitbook.com/book/GitBookIO/javascript). This documentation has been generated using GitBook.
+
+GitBook can output your content as a website ([customizable](themes.md) and [extensibles](plugins.md)) or as an ebook (PDF, ePub or Mobi).
+
+[GitBook.com](https://www.gitbook.com) is the online platform to create and host books built using the GitBook format. It offers hosting, collaboration features and an [easy-to-use editor](https://www.gitbook.com/editor).
+
+### Help and Support
+
+We're always happy to help out with your books or any other questions you might have. You can ask a question on the following contact form at [gitbook.com/contact](https://www.gitbook.com/contact) or signal an issue on [GitHub](https://github.com/GitbookIO/gitbook).
+
+### FAQ
+
+There are questions that are asked quite often, [check this out before creating an issue](faq.md).
+
+### Contribute to this documentation
+
+You can contribute to improve this documentation on [GitHub](https://github.com/GitbookIO/gitbook) by signaling issues or proposing changes.
+
diff --git a/docs/SUMMARY.md b/docs/SUMMARY.md
new file mode 100644
index 0000000..a304801
--- /dev/null
+++ b/docs/SUMMARY.md
@@ -0,0 +1,33 @@
+# Summary
+
+### Getting Started
+
+* [About this documentation](README.md)
+* [Installation and Setup](setup.md)
+
+### Your Content
+
+* [Directory structure](structure.md)
+* [Pages and Summary](pages.md)
+* [Glossary](lexicon.md)
+* [Multi-Lingual](languages.md)
+* [Configuration](config.md)
+* [AsciiDoc](asciidoc.md)
+
+### Miscellaneous
+
+* [Templating](templating.md)
+* [Content References](conrefs.md)
+* [Variables](variables.md)
+
+### Customization
+
+* [Plugins](plugins.md)
+* [Theming](themes.md)
+
+--
+
+* [FAQ](faq.md)
+* [Release notes](https://github.com/GitbookIO/gitbook/blob/master/CHANGES.md)
+
+
diff --git a/docs/_layouts/website/page.html b/docs/_layouts/website/page.html
new file mode 100644
index 0000000..a673a48
--- /dev/null
+++ b/docs/_layouts/website/page.html
@@ -0,0 +1,23 @@
+{% extends template.theme %}
+
+{% block header_nav %}
+<a href="https://github.com/GitbookIO/gitbook/blob/master/docs/{{ file.path }}" target="_blank" class="btn btn-link pull-right hidden-xs">
+    <i class="octicon octicon-mark-github"></i> Edit on GitHub
+</a>
+<a href="https://github.com/GitbookIO/gitbook/blob/master/CHANGES.md" target="_blank" class="btn btn-link pull-right hidden-xs">
+    {{ book.version }}
+</a>
+{% endblock %}
+
+{% block page %}
+{{ super() }}
+<hr>
+<div class="btn-group btn-group-justified">
+    {% if page.previous and page.previous.path %}
+    <a class="btn" href="{{ page.previous.path|resolveFile }}"><b>Previous:</b> {{ page.previous.title }}</a>
+    {% endif %}
+    {% if page.next and page.next.path %}
+    <a class="btn" href="{{ page.next.path|resolveFile }}"><b>Next:</b> {{ page.next.title }}</a>
+    {% endif %}
+</div>
+{% endblock %}
diff --git a/docs/asciidoc.md b/docs/asciidoc.md
new file mode 100644
index 0000000..6fe0dec
--- /dev/null
+++ b/docs/asciidoc.md
@@ -0,0 +1,60 @@
+# AsciiDoc
+
+Since version `2.0.0`, GitBook can also accept AsciiDoc as an input format.
+
+Please refer to the [AsciiDoc Syntax Quick Reference](http://asciidoctor.org/docs/asciidoc-syntax-quick-reference/) for more informations about the format.
+
+Just like for markdown, GitBook is using some special files to extract structures: `README.adoc`, `SUMMARY.adoc`, `LANGS.adoc` and `GLOSSARY.adoc`.
+
+### README.adoc
+
+This is the main entry of your book: the introduction. This file is **non optional**.
+
+### SUMMARY.adoc
+
+This file defines the list of chapters and subchapters. Just like [for markdown](./pages.md), the `SUMMARY.adoc`'s format is simply a list of links, the name of the link is used as the chapter's name, and the target is a path to that chapter's file.
+
+Subchapters are defined simply by adding a nested list to a parent chapter.
+
+```asciidoc
+= Summary
+
+. link:chapter-1/README.adoc[Chapter 1]
+.. link:chapter-1/ARTICLE1.adoc[Article 1]
+.. link:chapter-1/ARTICLE2.adoc[Article 2]
+... link:chapter-1/ARTICLE-1-2-1.adoc[Article 1.2.1]
+. link:chapter-2/README.adoc[Chapter 2]
+. link:chapter-3/README.adoc[Chapter 3]
+. link:chapter-4/README.adoc[Chapter 4]
+.. Unfinished article
+. Unfinished Chapter
+```
+
+### LANGS.adoc
+
+For [Multi-Languages](./languages.md) books, this file is used to define the different supported languages and translations.
+
+This file is following the same syntax as the `SUMMARY.adoc`:
+
+```asciidoc
+= Languages
+
+. link:en/[English]
+. link:fr/[French]
+```
+
+### GLOSSARY.adoc
+
+This file is used to define terms. [See the glossary section](./lexicon.md).
+
+```asciidoc
+= Glossary
+
+== Magic
+Sufficiently advanced technology, beyond the understanding of the observer producing a sense of wonder.
+
+== PHP
+An atrocious language, invented for the sole purpose of inflicting pain and suffering amongst the programming wizards of this world.
+```
+
+
diff --git a/docs/book.js b/docs/book.js
new file mode 100644
index 0000000..988abb2
--- /dev/null
+++ b/docs/book.js
@@ -0,0 +1,11 @@
+var pkg = require('../package.json');
+
+module.exports = {
+    title: 'GitBook Documentation',
+
+    plugins: ['theme-official'],
+    theme: 'official',
+    variables: {
+        version: pkg.version
+    }
+};
diff --git a/docs/config.md b/docs/config.md
new file mode 100644
index 0000000..060a9d0
--- /dev/null
+++ b/docs/config.md
@@ -0,0 +1,37 @@
+# Configuration
+
+GitBook allows you to customize your book using a flexible configuration. These options are specified in a `book.json` file.
+
+### Configuration Settings
+
+| Variable | Description |
+| -------- | ----------- |
+| `title` | Title of your book, default value is extracted from the README. On GitBook.com this field is pre-filled. |
+| `description` | Description of your book, default value is extracted from the README. On GitBook.com this field is pre-filled. |
+| `author` | Name of the author. On GitBook.com this field is pre-filled. |
+| `isbn` | ISBN of the book |
+| `language` | ISO code of the book's language, default value is `en` |
+| `direction` | `rtl` or `ltr`, default value depends on the value of `language` |
+| `gitbook` | [SemVer](http://semver.org) condition to validate which GitBook version should be used |
+| `plugins` | List of plugins to load, See [the plugins section](plugins.md) for more details |
+| `pluginsConfig` |Configuration for plugins, See [the plugins section](plugins.md) for more details |
+
+### PDF Options
+
+PDF Output can be customized using a set of options in the `book.json`:
+
+| Variable | Description |
+| -------- | ----------- |
+| `pdf.pageNumbers` | Add page numbers to the bottom of every page (default is `true`) |
+| `pdf.fontSize` | Base font size (default is `12`) |
+| `pdf.fontFamily` | Base font family (default is `Arial`) |
+| `pdf.paperSize` | Paper size, options are `'a0', 'a1', 'a2', 'a3', 'a4', 'a5', 'a6', 'b0', 'b1', 'b2', 'b3', 'b4', 'b5', 'b6', 'legal', 'letter'` (default is `a4`) |
+| `pdf.margin.top` | Top margin (default is `56`) |
+| `pdf.margin.bottom` | Bottom margin (default is `56`) |
+| `pdf.margin.right` | Right margin (default is `62`) |
+| `pdf.margin.left` | Left margin (default is `62`) |
+
+### Plugins
+
+Plugins and their configurations are specified in the `book.json`. See [the plugins section](plugins.md) for more details.
+
diff --git a/docs/conrefs.md b/docs/conrefs.md
new file mode 100644
index 0000000..7844e9c
--- /dev/null
+++ b/docs/conrefs.md
@@ -0,0 +1,55 @@
+# Content References
+
+Content referencing (conref) is a convenient mechanism for reuse of content from other files or books.
+
+### Importing local files
+
+Importing an other file's content is really easy using the `include` tag:
+
+```
+{% include "./test.md" %}
+```
+
+### Importing file from another book
+
+GitBook can also resolve the include path by using git:
+
+```
+{% include "git+https://github.com/GitbookIO/documentation.git/README.md#0.0.1" %}
+```
+
+The format of git url is:
+
+```
+git+https://user@hostname/project/blah.git/file#commit-ish
+```
+
+The real git url part should finish with `.git`, the filename to import is extracted after the `.git` till the fragment of the url.
+
+The `commit-ish` can be any tag, sha, or branch which can be supplied as an argument to `git checkout`. The default is `master`.
+
+### Inheritance
+
+Template inheritance is a way to make it easy to reuse templates. When writing a template, you can define "blocks" that child templates can override. The inheritance chain can be as long as you like.
+
+`block` defines a section on the template and identifies it with a name. Base templates can specify blocks and child templates can override them with new content.
+
+```
+{% extends "./mypage.md" %}
+
+{% block pageContent %}
+# This is my page content
+{% endblock %}
+```
+
+In the file `mypage.md`, you should specify the blocks that can be extent:
+
+```
+{% block pageContent %}
+This is the default content
+{% endblock %}
+
+# License
+
+{% import "./LICENSE" %}
+```
diff --git a/docs/faq.md b/docs/faq.md
new file mode 100644
index 0000000..42de8fe
--- /dev/null
+++ b/docs/faq.md
@@ -0,0 +1,33 @@
+# GitBook FAQ
+
+#### How can I host/publish my book?
+
+Books can easily be published and hosted on [GitBook.com](https://www.gitbook.com). But GitBook output can be hosted on any static file hosting solution.
+
+#### What can I use to edit my content?
+
+Any text editor should work! But we advise using the [GitBook Editor](https://www.gitbook.com/editor). [GitBook.com](https://www.gitbook.com) also provides a web version of this editor.
+
+---
+
+#### Should I use an `.html` or `.md` extensions in my links?
+
+You should always use `.md` extensions for your relative links, GitBook will automatically replace these links by the right value when the pointing file is referenced in the Table of Contents.
+
+#### Can I create a GitBook in a sub-directory of my repository?
+
+Yes, GitBooks can be created in [sub-directories](structure.md#subdirectory). GitBook.com and the CLI also looks by default in a serie of [folders](structure.md).
+
+---
+
+#### Does GitBook support Math equations?
+
+GitBook supports math equations and TeX thanks to plugins. There are currently 2 official plugins to display math: [mathjax](https://plugins.gitbook.com/plugin/mathjax) and [katex](https://plugins.gitbook.com/plugin/katex).
+
+#### Can I customize/theme the output?
+
+Yes, both the website and ebook outputs can be customized using [themes](themes.md).
+
+#### Can I add interactive content (videos, etc)?
+
+GitBook is very [extensible](plugins.md). You can use [existing plugins](https://plugins.gitbook.com) or create your own!
diff --git a/docs/languages.md b/docs/languages.md
new file mode 100644
index 0000000..9a866be
--- /dev/null
+++ b/docs/languages.md
@@ -0,0 +1,15 @@
+# Multi-Languages
+
+GitBook supports building books written in multiple languages. Each language should be a sub-directory following the normal GitBook format, and a file named `LANGS.md` should be present at the root of the repository with the following format:
+
+```markdown
+* [English](en/)
+* [French](fr/)
+* [Español](es/)
+```
+
+### Configuration for each language
+
+When a language book (ex: `en`) has a `book.json`, its configuration will extend the main configuration.
+
+The only exception is plugins, plugins are specify globally relative to the book, and language specific plugins can not be specified.
diff --git a/docs/lexicon.md b/docs/lexicon.md
new file mode 100644
index 0000000..5d356b4
--- /dev/null
+++ b/docs/lexicon.md
@@ -0,0 +1,13 @@
+# Glossary
+
+Allows you to specify terms and their respective definitions to be displayed as annotations. Based on those terms, gitbook will automatically build an index and highlight those terms in pages.
+
+The `GLOSSARY.md` format is very simple :
+
+```markdown
+# Term
+Definition for this term
+
+# Another term
+With it's definition, this can contain bold text and all other kinds of inline markup ...
+```
\ No newline at end of file
diff --git a/docs/pages.md b/docs/pages.md
new file mode 100644
index 0000000..8ffa054
--- /dev/null
+++ b/docs/pages.md
@@ -0,0 +1,50 @@
+# Pages and Summary
+
+GitBook uses a `SUMMARY.md` file to define the structure of chapters and subchapters of the book. The `SUMMARY.md` file is used to generate the book's table of contents.
+
+### Summary
+
+The `SUMMARY.md`'s format is simply a list of links, the title of the link is used as the chapter's title, and the target is a path to that chapter's file.
+
+Subchapters are defined simply by adding a nested list to a parent chapter.
+
+##### Simple example
+
+```markdown
+# Summary
+
+* [Part I](part1/README.md)
+    * [Writing is nice](part1/writing.md)
+    * [GitBook is nice](part1/gitbook.md)
+* [Part II](part2/README.md)
+    * [We love feedback](part2/feedback_please.md)
+    * [Better tools for authors](part2/better_tools.md)
+```
+
+##### Example with subchapters split into parts
+
+```markdown
+# Summary
+
+### Part 1
+
+* [Writing is nice](part1/writing.md)
+* [GitBook is nice](part1/gitbook.md)
+
+### Part 2
+
+* [We love feedback](part2/feedback_please.md)
+* [Better tools for authors](part2/better_tools.md)
+```
+
+### Front Matter
+
+Pages can contain an optional front matter. It can be used to define the page's description. The front matter must be the first thing in the file and must take the form of valid YAML set between triple-dashed lines. Here is a basic example:
+
+```yaml
+---
+description: This is a short description of my page
+---
+
+# The content of my page
+```
diff --git a/docs/plugins.md b/docs/plugins.md
new file mode 100644
index 0000000..ff56b7b
--- /dev/null
+++ b/docs/plugins.md
@@ -0,0 +1,26 @@
+# Plugins
+
+Plugins are the best way to extend GitBook functionalities (ebook and website). There exist plugins to do a lot of things: bring math formulas display support, track visits using Google Analytic, etc.
+
+### How to find plugins?
+
+Plugins can be easily searched on [plugins.gitbook.com](https://plugins.gitbook.com).
+
+
+### How to install a plugin?
+
+Once you find a plugin that you want to install, you need to add it to your `book.json`:
+
+```
+{
+    "plugins": ["myPlugin", "anotherPlugin"]
+}
+```
+
+You can also specify a specific version using: `"myPlugin@0.3.1"`. By default GitBook will resolve the latest version of the plugin compatbile with the current GitBook version.
+
+Plugins are automatically installed on [GitBook.com](https://www.gitbook.com). Locally, run `gitbook install` to install and prepare all plugins for your books.
+
+### Configuring plugins
+
+PLugins specific configurations are stored in `pluginsConfig`. You have to refer to the documentation of the plugin itself for details about the available options.
diff --git a/docs/setup.md b/docs/setup.md
new file mode 100644
index 0000000..3ce416e
--- /dev/null
+++ b/docs/setup.md
@@ -0,0 +1,45 @@
+# Setup and Installation of GitBook
+
+Getting GitBook installed and ready-to-go should only take a few minutes.
+
+### GitBook.com
+
+[GitBook.com](https://www.gitbook.com) is an easy to use solution to write, publish and host books. It's best and easier solution for publishing your content and collaborate on it.
+
+It integrates well with the [GitBook Editor](https://www.gitbook.com/editor).
+
+### Local Installation
+
+##### Requirements
+
+Installing GitBook is easy and straight-forward, but there are a few requirements you’ll need to make sure your system has before you start.
+
+* NodeJS (v4.0.0 and above are adviced)
+* Windows, Linux, Unix, or Mac OS X
+
+##### Install with NPM
+
+The best way to install GitBook is via **NPM**. At the terminal prompt, simply run the following command to install GitBook:
+
+```
+$ npm install gitbook-cli -g
+```
+
+`gitbook-cli` is an utility to install and use multiple versions of GitBook on the same system. It will automatically install the required version to build a book.
+
+##### Using pre-releases
+
+`gitbook-cli` makes it easy to install and test other versions of GitBook with your book:
+
+```
+$ gitbook install beta
+```
+
+##### Debugging
+
+You can use the options `--log=debug` and `--debug` to get better error messages (with stack trace). For example:
+
+```
+$ gitbook build ./ --log=debug --debug
+```
+
diff --git a/docs/structure.md b/docs/structure.md
new file mode 100644
index 0000000..31b00f6
--- /dev/null
+++ b/docs/structure.md
@@ -0,0 +1,62 @@
+# Directory structure
+
+GitBook uses a very simple and obvious directory sttructure:
+
+```
+.
+├── book.json
+├── README.md
+├── SUMMARY.md
+├── chapter-1/
+|   ├── README.md
+|   └── something.md
+└── chapter-2/
+    ├── README.md
+    └── something.md
+```
+
+An overview of what each of these does:
+
+| File | Description |
+| -------- | ----------- |
+| `book.json` | Stores [configuration](config.md) data (__optional__) |
+| `README.md` | Preface / Introduction for your book (**required**) |
+| `SUMMARY.md` | Table of Contents |
+
+
+### Static files and Images
+
+A static file is a file that is not listed in the `SUMMARY.md`. All static files, not [ignored](#ignore), are copied to the output.
+
+### Ignoring files & folders {#ignore}
+
+GitBook will read the `.gitignore`, `.bookignore` and `.ignore` files to get a list of files and folders to skip.
+The format inside those files, follows the same convention as `.gitignore`:
+
+```markdown
+# This is a comment
+
+# Ignore the file test.md
+test.md
+
+# Ignore everything in the directory "bin"
+bin/*
+```
+
+### Project documentation / Sub-directory {#subdirectory}
+
+For project documentaiton, it sometimes better to use a diretcory (like `docs/`) to store the prject's documentation. You can use a `.gitbook` file to indicate to GitBook in which folder the book is stored:
+
+```
+.
+├── .gitbook
+└── docs/
+    ├── README.md
+    └── SUMMARY.md
+```
+
+With `.gitbook` containing:
+
+```
+./docs/
+```
diff --git a/docs/templating.md b/docs/templating.md
new file mode 100644
index 0000000..38df38e
--- /dev/null
+++ b/docs/templating.md
@@ -0,0 +1,90 @@
+# Templating
+
+GitBook uses the Nunjucks templating language to process pages and theme's templates.
+
+The Nunjucks syntax is very similar to **Jinja2** or **Liquid**.
+
+### Variables
+
+A variable looks up a value from the template context. If you wanted to simply display a variable, you would do:
+
+```twig
+{{ username }}
+```
+
+This looks up username from the context and displays it. Variable names can have dots in them which lookup properties, just like javascript. You can also use the square bracket syntax.
+
+```twig
+{{ foo.bar }}
+{{ foo["bar"] }}
+```
+
+If a value is undefined, nothing is displayed. The following all output nothing if foo is undefined: `{{ foo }}`, `{{ foo.bar }}`, `{{ foo.bar.baz }}`.
+
+GitBook provides a set of [context variables](variables.md).
+
+### Filters
+
+Filters are essentially functions that can be applied to variables. They are called with a pipe operator (`|`) and can take arguments.
+
+```twig
+{{ foo | title }}
+{{ foo | join(",") }}
+{{ foo | replace("foo", "bar") | capitalize }}
+```
+
+The third example shows how you can chain filters. It would display "Bar", by first replacing "foo" with "bar" and then capitalizing it.
+
+### Tags
+
+##### if
+
+`if` tests a condition and lets you selectively display content. It behaves exactly as javascript's if behaves.
+
+```twig
+{% if variable %}
+  It is true
+{% endif %}
+```
+
+If variable is defined and evaluates to true, "It is true" will be displayed. Otherwise, nothing will be.
+
+You can specify alternate conditions with elif and else:
+
+```twig
+{% if hungry %}
+  I am hungry
+{% elif tired %}
+  I am tired
+{% else %}
+  I am good!
+{% endif %}
+```
+
+##### for
+
+`for` iterates over arrays and dictionaries.
+
+```twig
+# Chapters about GitBook
+
+{% for article in glossary.terms['gitbook'].articles %}
+* [{{ article.title }}]({{ article.path }})
+{% endfor %}
+```
+
+##### set
+
+`set` lets you create/modify a variable.
+
+```twig
+{% set softwareVersion = "1.0.0" %}
+
+Current version is {{ softwareVersion }}.
+[Download it](website.com/download/{{ softwareVersion }})
+```
+
+##### include and block
+
+Inclusion and inheritance is detailled in the [ConRefs](conrefs.md) section.
+
diff --git a/docs/themes.md b/docs/themes.md
new file mode 100644
index 0000000..48c19db
--- /dev/null
+++ b/docs/themes.md
@@ -0,0 +1,26 @@
+# Theming
+
+Since version 3.0.0, GitBook can be easily themed. Books are using by default the [theme-default](https://github.com/GitbookIO/theme-default).
+
+The theme to use is specified in the [book's configuration](config.md) using key `theme`.
+
+> **Caution**: Custom theming can block some plugins from working correctly.
+
+### Structure of a theme
+
+A theme is a folder containing templates and assets. All the templates are optionnal, since theme are always extending the default theme.
+
+| Folder | Description |
+| -------- | ----------- |
+| `_layouts` | Main folder containing all the templates |
+| `_layouts/website/page.html` | Template for a normal page |
+| `_layouts/ebook/page.html` | Template for a normal page during ebook generation (PDF< ePub, Mobi) |
+
+
+### Extend/Customize theme in a book
+
+Authors can extend the templates of a theme directly from the book source (without creating an external theme). Templates will be resolved in the `_layouts` folder of the book first, then in
+
+### Publish a theme
+
+Themes are published as plugins ([see related docs](plugins.md)) with a `theme-` prefix. For example the theme `awesome` will be loaded from `theme-awesome` plugin, and then from `gitbook-plugin-theme-awesome` NPM package.
diff --git a/docs/variables.md b/docs/variables.md
new file mode 100644
index 0000000..3dbd6f7
--- /dev/null
+++ b/docs/variables.md
@@ -0,0 +1,64 @@
+# Variables
+
+The following is a reference of the available data during book's parsing and theme generation.
+
+### Global Variables
+
+| Variable | Description |
+| -------- | ----------- |
+| `book` | Bookwide information + configuration settings from `book.json`. See below for details. |
+| `gitbook` | GitBook specific information |
+| `page` | Current page specific information |
+| `file` | File associated with the current page specific information |
+| `summary` | Information about the table of contents |
+| `languages` | List of languages for multi-lingual books |
+| `config` | Dump of the `book.json` |
+
+### Book Variables
+
+| Variable | Description |
+| -------- | ----------- |
+| `book.[CONFIGURATION_DATA]` | All the `variables` set via the `book.json` are available through the book variable. |
+| `book.language` | Current language for a multilingual book |
+
+### GitBook Variables
+
+| Variable | Description |
+| -------- | ----------- |
+| `gitbook.time` | The current time (when you run the `gitbook` command). |
+| `gitbook.version` | Version of GitBook used to generate the book |
+
+### File Variables
+
+| Variable | Description |
+| -------- | ----------- |
+| `file.path` | The path to the raw page |
+| `file.mtime` | Modified Time, Time when file data last modified |
+| `file.type` | The name of the parser used to compile this file (ex: `markdown`, `asciidoc`, etc) |
+
+#### Page Variables
+
+| Variable | Description |
+| -------- | ----------- |
+| `page.title` | Title of the page |
+| `page.previous` | Previous page in the Table of Contents (can be `null`) |
+| `page.next` | Next page in the Table of Contents (can be `null`) |
+| `page.dir` | Text direction, based on configuration or detected from content (`rtl` or `ltr`) |
+
+#### Table of Contents Variables
+
+| Variable | Description |
+| -------- | ----------- |
+| `summary.parts` | List of sections in the Table of Contents |
+
+Thw whole table of contents (`SUMMARY.md`) can be accessed:
+
+`summary.parts[0].articles[0].title` will return the title of the first article.
+
+#### Multi-lingual book Variable
+
+| Variable | Description |
+| -------- | ----------- |
+| `languages.list` | List of languages for this book |
+
+Languages are defined by `{ id: 'en', title: 'English' }`.
diff --git a/gulpfile.js b/gulpfile.js
deleted file mode 100644
index 570b6a0..0000000
--- a/gulpfile.js
+++ /dev/null
@@ -1,47 +0,0 @@
-var _ = require('lodash');
-var gulp = require('gulp');
-var gutil = require('gulp-util');
-var less = require('gulp-less');
-var rename = require('gulp-rename');
-var minifyCSS = require('gulp-minify-css');
-var browserify = require('browserify');
-var mergeStream = require('merge-stream');
-var source = require('vinyl-source-stream');
-
-gulp.task('css', function() {
-    var merged = mergeStream();
-
-    _.each({
-        'ebook.less': 'ebook/ebook.css',
-        'pdf.less': 'ebook/pdf.css',
-        'mobi.less': 'ebook/mobi.css',
-        'epub.less': 'ebook/epub.css',
-        'website.less': 'website/style.css'
-    }, function(out, input) {
-        gutil.log('compiling', input, 'into', out);
-        merged.add(gulp.src('theme/stylesheets/'+input)
-            .pipe(less())
-            .pipe(minifyCSS())
-            .pipe(rename(out))
-            .pipe(gulp.dest('theme/assets/')));
-    });
-
-    return merged;
-});
-
-gulp.task('js', function() {
-    return browserify('./theme/javascript/index.js')
-        .bundle()
-        .pipe(source('app.js'))
-        .pipe(gulp.dest('./theme/assets/website'));
-});
-
-gulp.task('assets', function() {
-    return gulp.src('./node_modules/font-awesome/fonts/*')
-    .pipe(gulp.dest('theme/assets/website/fonts/fontawesome/'));
-});
-
-gulp.task('default', ['css', 'js', 'assets'], function() {
-
-});
-
diff --git a/lib/backbone/file.js b/lib/backbone/file.js
new file mode 100644
index 0000000..209e261
--- /dev/null
+++ b/lib/backbone/file.js
@@ -0,0 +1,69 @@
+var _ = require('lodash');
+
+function BackboneFile(book) {
+    if (!(this instanceof BackboneFile)) return new BackboneFile(book);
+
+    this.book = book;
+    this.log = this.book.log;
+
+    // Filename in the book
+    this.path = '';
+    this.parser;
+
+    _.bindAll(this);
+}
+
+// Type of the backbone file
+BackboneFile.prototype.type = '';
+
+// Parse a backbone file
+BackboneFile.prototype.parse = function() {
+    // To be implemented by each child
+};
+
+// Handle case where file doesn't exists
+BackboneFile.prototype.parseNotFound = function() {
+
+};
+
+// Return true if backbone file exists
+BackboneFile.prototype.exists = function() {
+    return Boolean(this.path);
+};
+
+// Locate a backbone file, could be .md, .asciidoc, etc
+BackboneFile.prototype.locate = function() {
+    var that = this;
+    var filename = this.book.config.getStructure(this.type, true);
+    this.log.debug.ln('locating', this.type, ':', filename);
+
+    return this.book.findParsableFile(filename)
+    .then(function(result) {
+        if (!result) return;
+
+        that.path = result.path;
+        that.parser = result.parser;
+    });
+};
+
+// Read and parse the file
+BackboneFile.prototype.load = function() {
+    var that = this;
+    this.log.debug.ln('loading', this.type, ':', that.path);
+
+    return this.locate()
+    .then(function() {
+        if (!that.path) return that.parseNotFound();
+
+        that.log.debug.ln(that.type, 'located at', that.path);
+
+        return that.book.readFile(that.path)
+
+        // Parse it
+        .then(function(content) {
+            return that.parse(content);
+        });
+    });
+};
+
+module.exports = BackboneFile;
diff --git a/lib/backbone/glossary.js b/lib/backbone/glossary.js
new file mode 100644
index 0000000..cc0fdce
--- /dev/null
+++ b/lib/backbone/glossary.js
@@ -0,0 +1,99 @@
+var _ = require('lodash');
+var util = require('util');
+var BackboneFile = require('./file');
+
+// Normalize a glossary entry name into a unique id
+function nameToId(name) {
+    return name.toLowerCase()
+        .replace(/[\/\\\?\%\*\:\;\|\"\'\\<\\>\#\$\(\)\!\.\@]/g, '')
+        .replace(/ /g, '_')
+        .trim();
+}
+
+
+/*
+A glossary entry is represented by a name and a short description
+An unique id for the entry is generated using its name
+*/
+function GlossaryEntry(name, description) {
+    if (!(this instanceof GlossaryEntry)) return new GlossaryEntry(name, description);
+
+    this.name = name;
+    this.description = description;
+
+    Object.defineProperty(this, 'id', {
+        get: _.bind(this.getId, this)
+    });
+}
+
+// Normalizes a glossary entry's name to create an ID
+GlossaryEntry.prototype.getId = function() {
+    return nameToId(this.name);
+};
+
+
+/*
+A glossary is a list of entries stored in a GLOSSARY.md file
+*/
+function Glossary() {
+    BackboneFile.apply(this, arguments);
+
+    this.entries = [];
+}
+util.inherits(Glossary, BackboneFile);
+
+Glossary.prototype.type = 'glossary';
+
+// Get templating context
+Glossary.prototype.getContext = function() {
+    if (!this.path) return {};
+
+    return {
+        glossary: {
+            path: this.path
+        }
+    };
+};
+
+// Parse the readme content
+Glossary.prototype.parse = function(content) {
+    var that = this;
+
+    return this.parser.glossary(content)
+    .then(function(entries) {
+        that.entries = _.map(entries, function(entry) {
+            return new GlossaryEntry(entry.name, entry.description);
+        });
+    });
+};
+
+// Return an entry by its id
+Glossary.prototype.get = function(id) {
+    return _.find(this.entries, {
+        id: id
+    });
+};
+
+// Find an entry by its name
+Glossary.prototype.find = function(name) {
+    return this.get(nameToId(name));
+};
+
+// Return false if glossary has entries (and exists)
+Glossary.prototype.isEmpty = function(id) {
+    return _.size(this.entries) === 0;
+};
+
+// Convert the glossary to a list of annotations
+Glossary.prototype.annotations = function() {
+    return _.map(this.entries, function(entry) {
+        return {
+            id: entry.id,
+            name: entry.name,
+            description: entry.description,
+            href: '/' + this.path + '#' + entry.id
+        };
+    }, this);
+};
+
+module.exports = Glossary;
diff --git a/lib/backbone/index.js b/lib/backbone/index.js
new file mode 100644
index 0000000..4c3c3f3
--- /dev/null
+++ b/lib/backbone/index.js
@@ -0,0 +1,8 @@
+
+module.exports = {
+    Readme: require('./readme'),
+    Summary: require('./summary'),
+    Glossary: require('./glossary'),
+    Langs: require('./langs')
+};
+
diff --git a/lib/backbone/langs.js b/lib/backbone/langs.js
new file mode 100644
index 0000000..e339fa9
--- /dev/null
+++ b/lib/backbone/langs.js
@@ -0,0 +1,81 @@
+var _ = require('lodash');
+var path = require('path');
+var util = require('util');
+var BackboneFile = require('./file');
+
+function Language(title, folder) {
+    var that = this;
+
+    this.title = title;
+    this.folder = folder;
+
+    Object.defineProperty(this, 'id', {
+        get: function() {
+            return path.basename(that.folder);
+        }
+    });
+}
+
+/*
+A Langs is a list of languages stored in a LANGS.md file
+*/
+function Langs() {
+    BackboneFile.apply(this, arguments);
+
+    this.languages = [];
+}
+util.inherits(Langs, BackboneFile);
+
+Langs.prototype.type = 'langs';
+
+// Parse the readme content
+Langs.prototype.parse = function(content) {
+    var that = this;
+
+    return this.parser.langs(content)
+    .then(function(langs) {
+        that.languages = _.map(langs, function(entry) {
+            return new Language(entry.title, entry.path);
+        });
+    });
+};
+
+// Return the list of languages
+Langs.prototype.list = function() {
+    return this.languages;
+};
+
+// Return default/main language for the book
+Langs.prototype.getDefault = function() {
+    return _.first(this.languages);
+};
+
+// Return true if a language is the default one
+// "lang" cam be a string (id) or a Language entry
+Langs.prototype.isDefault = function(lang) {
+    lang = lang.id || lang;
+    return (this.cound() > 0 && this.getDefault().id == lang);
+};
+
+// Return the count of languages
+Langs.prototype.count = function() {
+    return _.size(this.languages);
+};
+
+// Return templating context for the languages list
+Langs.prototype.getContext = function() {
+    if (this.count() == 0) return {};
+
+    return {
+        languages: {
+            list: _.map(this.languages, function(lang) {
+                return {
+                    id: lang.id,
+                    title: lang.title
+                };
+            })
+        }
+    };
+};
+
+module.exports = Langs;
diff --git a/lib/backbone/readme.js b/lib/backbone/readme.js
new file mode 100644
index 0000000..a4cd9d8
--- /dev/null
+++ b/lib/backbone/readme.js
@@ -0,0 +1,26 @@
+var util = require('util');
+var BackboneFile = require('./file');
+
+function Readme() {
+    BackboneFile.apply(this, arguments);
+
+    this.title;
+    this.description;
+}
+util.inherits(Readme, BackboneFile);
+
+Readme.prototype.type = 'readme';
+
+// Parse the readme content
+Readme.prototype.parse = function(content) {
+    var that = this;
+
+    return this.parser.readme(content)
+    .then(function(out) {
+        that.title = out.title;
+        that.description = out.description;
+    });
+};
+
+
+module.exports = Readme;
diff --git a/lib/backbone/summary.js b/lib/backbone/summary.js
new file mode 100644
index 0000000..4ae3453
--- /dev/null
+++ b/lib/backbone/summary.js
@@ -0,0 +1,339 @@
+var _ = require('lodash');
+var util = require('util');
+var url = require('url');
+
+var location = require('../utils/location');
+var error = require('../utils/error');
+var BackboneFile = require('./file');
+
+
+/*
+    An article represent an entry in the Summary.
+    It's defined by a title, a reference, and children articles,
+    the reference (ref) can be a filename + anchor or an external file (optional)
+*/
+function TOCArticle(def, parent) {
+    // Title
+    this.title = def.title;
+
+    // Parent TOCPart or TOCArticle
+    this.parent = parent;
+
+    // As string indicating the overall position
+    // ex: '1.0.0'
+    this.level;
+    this._next;
+    this._prev;
+
+    // When README has been automatically added
+    this.isAutoIntro = def.isAutoIntro;
+    this.isIntroduction = def.isIntroduction;
+
+    this.validate();
+
+    // Path can be a relative path or an url, or nothing
+    this.ref = def.path;
+    if (this.ref) {
+        var parts = url.parse(this.ref);
+
+        if (!this.isExternal()) {
+            this.path = parts.pathname;
+            this.anchor = parts.hash;
+        }
+    }
+
+    this.articles = _.map(def.articles || [], function(article) {
+        if (article instanceof TOCArticle) return article;
+        return new TOCArticle(article, this);
+    }, this);
+}
+
+// Validate the article
+TOCArticle.prototype.validate = function() {
+    if (!this.title) {
+        throw error.ParsingError(new Error('SUMMARY entries should have an non-empty title'));
+    }
+};
+
+// Iterate over all articles in this articles
+TOCArticle.prototype.walk = function(iter, base) {
+    base = base || this.level;
+
+    _.each(this.articles, function(article, i) {
+        var level = levelId(base, i);
+
+        if (iter(article, level) === false) {
+            return false;
+        }
+        article.walk(iter, level);
+    });
+};
+
+// Return templating context for an article
+TOCArticle.prototype.getContext = function() {
+    return {
+        level: this.level,
+        title: this.title,
+        depth: this.depth(),
+        path: this.isExternal()? undefined : this.path,
+        anchor: this.isExternal()? undefined : this.anchor,
+        url: this.isExternal()? this.ref : undefined
+    };
+};
+
+// Return true if is pointing to a file
+TOCArticle.prototype.hasLocation = function() {
+    return Boolean(this.path);
+};
+
+// Return true if is pointing to an external location
+TOCArticle.prototype.isExternal = function() {
+    return location.isExternal(this.ref);
+};
+
+// Return true if this article is the introduction
+TOCArticle.prototype.isIntro = function() {
+    return Boolean(this.isIntroduction);
+};
+
+// Return true if has children
+TOCArticle.prototype.hasChildren = function() {
+    return this.articles.length > 0;
+};
+
+// Return true if has an article as parent
+TOCArticle.prototype.hasParent = function() {
+    return !(this.parent instanceof TOCPart);
+};
+
+// Return depth of this article
+TOCArticle.prototype.depth = function() {
+    return this.level.split('.').length;
+};
+
+// Return next article in the TOC
+TOCArticle.prototype.next = function() {
+    return this._next;
+};
+
+// Return previous article in the TOC
+TOCArticle.prototype.prev = function() {
+    return this._prev;
+};
+
+// Map over all articles
+TOCArticle.prototype.map = function(iter) {
+    return _.map(this.articles, iter);
+};
+
+
+/*
+    A part of a ToC is a composed of a tree of articles and an optiona title
+*/
+function TOCPart(part, parent) {
+    if (!(this instanceof TOCPart)) return new TOCPart(part, parent);
+
+    TOCArticle.apply(this, arguments);
+}
+util.inherits(TOCPart, TOCArticle);
+
+// Validate the part
+TOCPart.prototype.validate = function() { };
+
+// Return a sibling (next or prev) of this part
+TOCPart.prototype.sibling = function(direction) {
+    var parts = this.parent.parts;
+    var pos = _.findIndex(parts, this);
+
+    if (parts[pos + direction]) {
+        return parts[pos + direction];
+    }
+
+    return null;
+};
+
+// Iterate over all entries of the part
+TOCPart.prototype.walk = function(iter, base) {
+    var articles = this.articles;
+
+    if (articles.length == 0) return;
+
+    // Has introduction?
+    if (articles[0].isIntro()) {
+        if (iter(articles[0], '0') === false) {
+            return;
+        }
+
+        articles = articles.slice(1);
+    }
+
+
+    _.each(articles, function(article, i) {
+        var level = levelId(base, i);
+
+        if (iter(article, level) === false) {
+            return false;
+        }
+
+        article.walk(iter, level);
+    });
+};
+
+// Return templating context for a part
+TOCPart.prototype.getContext = function(onArticle) {
+    onArticle = onArticle || function(article) {
+        return article.getContext();
+    };
+
+    return {
+        title: this.title,
+        articles: this.map(onArticle)
+    };
+};
+
+/*
+A summary is composed of a list of parts, each composed wit a tree of articles.
+*/
+function Summary() {
+    BackboneFile.apply(this, arguments);
+
+    this.parts = [];
+    this._length = 0;
+}
+util.inherits(Summary, BackboneFile);
+
+Summary.prototype.type = 'summary';
+
+// Prepare summary when non existant
+Summary.prototype.parseNotFound = function() {
+    this.update([]);
+};
+
+// Parse the summary content
+Summary.prototype.parse = function(content) {
+    var that = this;
+
+    return this.parser.summary(content)
+
+    .then(function(summary) {
+        that.update(summary.parts);
+    });
+};
+
+// Return templating context for the summary
+Summary.prototype.getContext = function() {
+    function onArticle(article) {
+        var result = article.getContext();
+        if (article.hasChildren()) {
+            result.articles = article.map(onArticle);
+        }
+
+        return result;
+    }
+
+    return {
+        summary: {
+            parts: _.map(this.parts, function(part) {
+                return part.getContext(onArticle);
+            })
+        }
+    };
+};
+
+// Iterate over all entries of the summary
+// iter is called with an TOCArticle
+Summary.prototype.walk = function(iter) {
+    var hasMultipleParts = this.parts.length > 1;
+
+    _.each(this.parts, function(part, i) {
+        part.walk(iter, hasMultipleParts? levelId('', i) : null);
+    });
+};
+
+// Find a specific article using a filter
+Summary.prototype.find = function(filter) {
+    var result;
+
+    this.walk(function(article) {
+        if (filter(article)) {
+            result = article;
+            return false;
+        }
+    });
+
+    return result;
+};
+
+// Return the first TOCArticle for a specific page (or path)
+Summary.prototype.getArticle = function(page) {
+    if (!_.isString(page)) page = page.path;
+
+    return this.find(function(article) {
+        return article.path == page;
+    });
+};
+
+// Return the first TOCArticle for a specific level
+Summary.prototype.getArticleByLevel = function(lvl) {
+    return this.find(function(article) {
+        return article.level == lvl;
+    });
+};
+
+// Return the count of articles in the summary
+Summary.prototype.count = function() {
+    return this._length;
+};
+
+// Prepare the summary
+Summary.prototype.update = function(parts) {
+    var that = this;
+
+
+    that.parts = _.map(parts, function(part) {
+        return new TOCPart(part, that);
+    });
+
+    // Create first part if none
+    if (that.parts.length == 0) {
+        that.parts.push(new TOCPart({}, that));
+    }
+
+    // Add README as first entry
+    var firstArticle = that.parts[0].articles[0];
+    if (!firstArticle || firstArticle.path != that.book.readme.path) {
+        that.parts[0].articles.unshift(new TOCArticle({
+            title: 'Introduction',
+            path: that.book.readme.path,
+            isAutoIntro: true
+        }, that.parts[0]));
+    }
+    that.parts[0].articles[0].isIntroduction = true;
+
+
+    // Update the count and indexing of "level"
+    var prev = undefined;
+
+    that._length = 0;
+    that.walk(function(article, level) {
+        // Index level
+        article.level = level;
+
+        // Chain articles
+        article._prev = prev;
+        if (prev) prev._next = article;
+
+        prev = article;
+
+        that._length += 1;
+    });
+};
+
+
+// Return a level string from a base level and an index
+function levelId(base, i) {
+    i = i + 1;
+    return (base? [base || '', i] : [i]).join('.');
+}
+
+module.exports = Summary;
diff --git a/lib/book.js b/lib/book.js
index 9ba27f3..400296e 100644
--- a/lib/book.js
+++ b/lib/book.js
@@ -1,25 +1,34 @@
-var Q = require('q');
 var _ = require('lodash');
 var path = require('path');
-var parsers = require('gitbook-parsers');
-
-var fs = require('./utils/fs');
-var parseNavigation = require('./utils/navigation');
-var parseProgress = require('./utils/progress');
-var pageUtil = require('./utils/page');
+var Ignore = require('ignore');
+
+var Config = require('./config');
+var Readme = require('./backbone/readme');
+var Glossary = require('./backbone/glossary');
+var Summary = require('./backbone/summary');
+var Langs = require('./backbone/langs');
+var Page = require('./page');
 var pathUtil = require('./utils/path');
-var links = require('./utils/links');
-var i18n = require('./utils/i18n');
-var logger = require('./utils/logger');
+var error = require('./utils/error');
+var Promise = require('./utils/promise');
+var Logger = require('./utils/logger');
+var parsers = require('./parsers');
+
+
+/*
+The Book class is an interface for parsing books content.
+It does not require to run on Node.js, isnce it only depends on the fs implementation
+*/
+
+function Book(opts) {
+    if (!(this instanceof Book)) return new Book(opts);
 
-var Configuration = require('./configuration');
-var TemplateEngine = require('./template');
-var PluginsList = require('./pluginslist');
+    this.opts = _.defaults(opts || {}, {
+        fs: null,
 
-var generators = require('./generators');
+        // Root path for the book
+        root: '',
 
-var Book = function(root, context, parent) {
-    this.context = _.defaults(context || {}, {
         // Extend book configuration
         config: {},
 
@@ -32,572 +41,234 @@ var Book = function(root, context, parent) {
         logLevel: 'info'
     });
 
-    // Log
-    this.log = logger(this.context.log, this.context.logLevel);
+    if (!opts.fs) throw error.ParsingError(new Error('Book requires a fs instance'));
 
-    // Root folder of the book
-    this.root = path.resolve(root);
+    // Root path for the book
+    this.root = opts.root;
 
-    // Parent book
-    this.parent = parent;
+    // If multi-lingual, book can have a parent
+    this.parent = opts.parent;
+    if (this.parent) {
+        this.language = path.relative(this.parent.root, this.root);
+    }
 
-    // Configuration
-    this.config = new Configuration(this, this.context.config);
-    Object.defineProperty(this, 'options', {
-        get: function () {
-            return this.config.options;
-        }
-    });
+    // A book is linked to an fs, to access its content
+    this.fs = opts.fs;
 
-    // Template
-    this.template = new TemplateEngine(this);
+    // Rules to ignore some files
+    this.ignore = Ignore();
+    this.ignore.addPattern([
+        // Skip Git stuff
+        '.git/',
 
-    // Summary
-    this.summary = {};
-    this.navigation = [];
+        // Skip OS X meta data
+        '.DS_Store',
 
-    // Glossary
-    this.glossary = [];
+        // Skip stuff installed by plugins
+        'node_modules',
 
-    // Langs
-    this.langs = [];
+        // Skip book outputs
+        '_book',
+        '*.pdf',
+        '*.epub',
+        '*.mobi'
+    ]);
 
-    // Sub-books
-    this.books = [];
+    // Create a logger for the book
+    this.log = new Logger(opts.log, opts.logLevel);
 
-    // Files in the book
-    this.files = [];
+    // Create an interface to access the configuration
+    this.config = new Config(this, opts.config);
 
-    // List of plugins
-    this.plugins = new PluginsList(this);
+    // Interfaces for the book structure
+    this.readme = new Readme(this);
+    this.summary = new Summary(this);
+    this.glossary = new Glossary(this);
 
-    // Structure files
-    this.summaryFile = null;
-    this.glossaryFile = null;
-    this.readmeFile = null;
-    this.langsFile = null;
+    // Multilinguals book
+    this.langs = new Langs(this);
+    this.books = [];
 
-    // Bind methods
-    _.bindAll(this);
-};
+    // List of page in the book
+    this.pages = {};
 
-// Return string representation
-Book.prototype.toString = function() {
-    return '[Book '+this.root+']';
-};
+    _.bindAll(this);
+}
 
-// Initialize and parse the book: config, summary, glossary
-Book.prototype.parse = function() {
-    var that = this;
-    var multilingual = false;
+// Return templating context for the book
+Book.prototype.getContext = function() {
+    var variables = this.config.get('variables', {});
 
-    return this.parseConfig()
+    return {
+        book: _.extend({
+            language: this.language
+        }, variables)
+    };
+};
 
-    .then(function() {
-        return that.parsePlugins();
-    })
+// Parse and prepare the configuration, fail if invalid
+Book.prototype.prepareConfig = function() {
+    return this.config.load();
+};
 
-    .then(function() {
-        return that.parseLangs()
-        .then(function() {
-            multilingual = that.langs.length > 0;
-            if (multilingual) that.log.info.ln('Parsing multilingual book, with', that.langs.length, 'languages');
-
-            // Sub-books that inherit from the current book configuration
-            that.books = _.map(that.langs, function(lang) {
-                that.log.info.ln('Preparing language book', lang.lang);
-                return new Book(
-                    path.join(that.root, lang.path),
-                    _.merge({}, that.context, {
-                        config: _.extend({}, that.options, {
-                            'output': path.join(that.options.output, lang.lang),
-                            'language': lang.lang
-                        })
-                    }),
-                    that
-                );
-            });
+// Resolve a path in the book source
+// Enforce that the output path is in the scope
+Book.prototype.resolve = function() {
+    var filename = path.resolve.apply(path, [this.root].concat(_.toArray(arguments)));
+    if (!this.isFileInScope(filename)) {
+        throw error.FileOutOfScopeError({
+            filename: filename,
+            root: this.root
         });
-    })
+    }
 
-    .then(function() {
-        if (multilingual) return;
-        return that.listAllFiles();
-    })
-    .then(function() {
-        if (multilingual) return;
-        return that.parseReadme();
-    })
-    .then(function() {
-        if (multilingual) return;
-        return that.parseSummary();
-    })
-    .then(function() {
-        if (multilingual) return;
-        return that.parseGlossary();
-    })
+    return filename;
+};
 
-    .then(function() {
-        // Init sub-books
-        return _.reduce(that.books, function(prev, book) {
-            return prev.then(function() {
-                return book.parse();
-            });
-        }, Q());
-    })
+// Return false if a file is outside the book' scope
+Book.prototype.isFileInScope = function(filename) {
+    filename = path.resolve(this.root, filename);
 
-    .thenResolve(this);
+    // Is the file in the scope of the parent?
+    if (this.parent && this.parent.isFileInScope(filename)) return true;
+
+    // Is file in the root folder?
+    return pathUtil.isInRoot(this.root, filename);
 };
 
-// Generate the output
-Book.prototype.generate = function(generator) {
+// Parse .gitignore, etc to extract rules
+Book.prototype.parseIgnoreRules = function() {
     var that = this;
-    that.options.generator = generator || that.options.generator;
 
-    that.log.info.ln('start generation with', that.options.generator, 'generator');
-    return Q()
-
-    // Clean output folder
-    .then(function() {
-        that.log.info('clean', that.options.generator, 'generator');
-        return fs.clean(that.options.output)
-        .progress(function(p) {
-            that.log.debug.ln('remove', p.file, '('+p.i+'/'+p.count+')');
-        })
-        .then(function() {
-            that.log.info.ok();
+    return Promise.serie([
+        '.ignore',
+        '.gitignore',
+        '.bookignore'
+    ], function(filename) {
+        return that.readFile(filename)
+        .then(function(content) {
+            that.ignore.addPattern(content.toString().split(/\r?\n/));
+        }, function() {
+            return Promise();
         });
-    })
+    });
+};
 
-    // Create generator
-    .then(function() {
-        var Generator = generators[generator];
-        if (!Generator) throw 'Generator \''+that.options.generator+'\' doesn\'t exist';
-        generator = new Generator(that);
+// Parse the whole book
+Book.prototype.parse = function() {
+    var that = this;
 
-        return generator.prepare();
-    })
+    return Promise()
+    .then(this.prepareConfig)
+    .then(this.parseIgnoreRules)
 
-    // Transform configuration
+    // Parse languages
     .then(function() {
-        return that.callHook('config', that.config.dump())
-        .then(function(newConfig) {
-            that.config.replace(newConfig);
-        });
+        return that.langs.load();
     })
 
-    // Generate content
     .then(function() {
         if (that.isMultilingual()) {
-            return that.generateMultiLingual(generator);
-        } else {
-            // Separate list of files into the different operations needed
-            var ops = _.groupBy(that.files, function(file) {
-                if (file[file.length -1] == '/') {
-                    return 'directories';
-                } else if (_.contains(parsers.extensions, path.extname(file)) && that.navigation[file]) {
-                    return 'content';
-                } else {
-                    return 'files';
-                }
-            });
-
-
-            return Q()
+            if (that.isLanguageBook()) {
+                throw error.ParsingError(new Error('A multilingual book as a language book is forbidden'));
+            }
+
+            that.log.info.ln('Parsing multilingual book, with', that.langs.count(), 'languages');
+
+            // Create a new book for each language and parse it
+            return Promise.serie(that.langs.list(), function(lang) {
+                that.log.debug.ln('Preparing book for language', lang.id);
+                var langBook = new Book(_.extend({}, that.opts, {
+                    parent: that,
+                    config: that.config.dump(),
+                    root: that.resolve(lang.id)
+                }));
 
-            // First, let's create folder
-            .then(function() {
-                return _.reduce(ops.directories || [], function(prev, folder) {
-                    return prev.then(function() {
-                        that.log.debug.ln('transferring folder', folder);
-                        return Q(generator.transferFolder(folder));
-                    });
-                }, Q());
-            })
+                that.books.push(langBook);
 
-            // Then, let's copy other files
-            .then(function() {
-                return Q.all(_.map(ops.files || [], function(file) {
-                    that.log.debug.ln('transferring file', file);
-                    return Q(generator.transferFile(file));
-                }));
-            })
-
-            // Finally let's generate content
-            .then(function() {
-                var nFiles = (ops.content || []).length;
-                return _.reduce(ops.content || [], function(prev, file, i) {
-                    return prev.then(function() {
-                        var p = ((i*100)/nFiles).toFixed(0)+'%';
-                        that.log.debug.ln('processing', file, p);
-
-                        return Q(generator.convertFile(file))
-                        .fail(function(err) {
-                            // Transform error message to signal file
-                            throw that.normError(err, {
-                                fileName: file
-                            });
-                        });
-                    });
-                }, Q());
+                return langBook.parse();
             });
         }
-    })
 
-    // Finish generation
-    .then(function() {
-        return that.callHook('finish:before');
-    })
-    .then(function() {
-        return generator.finish();
-    })
-    .then(function() {
-        return that.callHook('finish');
-    })
-    .then(function() {
-        that.log.info.ln('generation is finished');
-    });
-};
+        return Promise()
 
-// Generate the output for a multilingual book
-Book.prototype.generateMultiLingual = function() {
-    var that = this;
-
-    return Q()
-    .then(function() {
-        // Generate sub-books
-        return _.reduce(that.books, function(prev, book) {
-            return prev.then(function() {
-                return book.generate(that.options.generator);
-            });
-        }, Q());
-    });
-};
+        // Parse the readme
+        .then(that.readme.load)
+        .then(function() {
+            if (!that.readme.exists()) {
+                throw new error.FileNotFoundError({ filename: 'README' });
+            }
 
-// Extract files from ebook generated
-Book.prototype.generateFile = function(output, options) {
-    var book = this;
+            // Default configuration to infos extracted from readme
+            if (!that.config.get('title')) that.config.set('title', that.readme.title);
+            if (!that.config.get('description')) that.config.set('description', that.readme.description);
+        })
 
-    options = _.defaults(options || {}, {
-        ebookFormat: path.extname(output).slice(1)
-    });
-    output = output || path.resolve(book.root, 'book.'+options.ebookFormat);
+        // Parse the summary
+        .then(that.summary.load)
+        .then(function() {
+            if (!that.summary.exists()) {
+                that.log.warn.ln('no summary file in this book');
+            }
+
+            // Index summary's articles
+            that.summary.walk(function(article) {
+                if (!article.hasLocation() || article.isExternal()) return;
+                that.addPage(article.path);
+            });
+        })
 
-    return fs.tmp.dir()
-    .then(function(tmpDir) {
-        book.setOutput(tmpDir);
+        // Parse the glossary
+        .then(that.glossary.load)
 
-        return book.generate(options.ebookFormat)
+        // Add the glossary as a page
         .then(function() {
-            var copyFile = function(lang) {
-                var _outputFile = output;
-                var _tmpDir = tmpDir;
-
-                if (lang) {
-                    _outputFile = _outputFile.slice(0, -path.extname(_outputFile).length)+'_'+lang+path.extname(_outputFile);
-                    _tmpDir = path.join(_tmpDir, lang);
-                }
-
-                book.log.debug.ln('copy ebook to', _outputFile);
-                return fs.copy(
-                    path.join(_tmpDir, 'index.'+options.ebookFormat),
-                    _outputFile
-                );
-            };
-
-            // Multi-langs book
-            return Q()
-            .then(function() {
-                if (book.isMultilingual()) {
-                    return Q.all(
-                        _.map(book.langs, function(lang) {
-                            return copyFile(lang.lang);
-                        })
-                    )
-                    .thenResolve(book.langs.length);
-                } else {
-                    return copyFile().thenResolve(1);
-                }
-            })
-            .then(function(n) {
-                book.log.info.ok(n+' file(s) generated');
-
-                return fs.remove(tmpDir);
-            });
+            if (!that.glossary.exists()) return;
+            that.addPage(that.glossary.path);
         });
     });
 };
 
-// Parse configuration
-Book.prototype.parseConfig = function() {
-    var that = this;
+// Mark a filename as being parsable
+Book.prototype.addPage = function(filename) {
+    if (this.hasPage(filename)) return this.getPage(filename);
 
-    that.log.info('loading book configuration....');
-    return that.config.load()
-    .then(function() {
-        that.log.info.ok();
-    });
+    filename = pathUtil.normalize(filename);
+    this.pages[filename] = new Page(this, filename);
+    return this.pages[filename];
 };
 
-// Parse list of plugins
-Book.prototype.parsePlugins = function() {
-    var that = this;
-
-    // Load plugins
-    return that.plugins.load(that.options.plugins)
-    .then(function() {
-        if (_.size(that.plugins.failed) > 0) return Q.reject(new Error('Error loading plugins: '+that.plugins.failed.join(',')+'. Run \'gitbook install\' to install plugins from NPM.'));
-
-        that.log.info.ok(that.plugins.count()+' plugins loaded');
-        that.log.debug.ln('normalize plugins list');
-    });
+// Return a page by its filename (or undefined)
+Book.prototype.getPage = function(filename) {
+    filename = pathUtil.normalize(filename);
+    return this.pages[filename];
 };
 
-// Parse readme to extract defaults title and description
-Book.prototype.parseReadme = function() {
-    var that = this;
-    var filename = that.config.getStructure('readme', true);
-    that.log.debug.ln('start parsing readme:', filename);
-
-    return that.findFile(filename)
-    .then(function(readme) {
-        if (!readme) throw 'No README file';
-        if (!_.contains(that.files, readme.path)) throw 'README file is ignored';
-
-        that.readmeFile = readme.path;
-        that._defaultsStructure(that.readmeFile);
 
-        that.log.debug.ln('readme located at', that.readmeFile);
-        return that.template.renderFile(that.readmeFile)
-        .then(function(content) {
-            return readme.parser.readme(content)
-            .fail(function(err) {
-                throw that.normError(err, {
-                    name: err.name || 'Readme Parse Error',
-                    fileName: that.readmeFile
-                });
-            });
-        });
-    })
-    .then(function(readme) {
-        that.options.title = that.options.title || readme.title;
-        that.options.description = that.options.description || readme.description;
-    });
+// Return true, if has a specific page
+Book.prototype.hasPage = function(filename) {
+    return Boolean(this.getPage(filename));
 };
 
-
-// Parse langs to extract list of sub-books
-Book.prototype.parseLangs = function() {
-    var that = this;
-
-    var filename = that.config.getStructure('langs', true);
-    that.log.debug.ln('start parsing languages index:', filename);
-
-    return that.findFile(filename)
-    .then(function(langs) {
-        if (!langs) return [];
-
-        that.langsFile = langs.path;
-        that._defaultsStructure(that.langsFile);
-
-        that.log.debug.ln('languages index located at', that.langsFile);
-        return that.template.renderFile(that.langsFile)
-        .then(function(content) {
-            return langs.parser.langs(content)
-            .fail(function(err) {
-                throw that.normError(err, {
-                    name: err.name || 'Langs Parse Error',
-                    fileName: that.langsFile
-                });
-            });
-        });
-    })
-    .then(function(langs) {
-        that.langs = langs;
-    });
+// Test if a file is ignored, return true if it is
+Book.prototype.isFileIgnored = function(filename) {
+    return this.ignore.filter([filename]).length == 0;
 };
 
-// Parse summary to extract list of chapters
-Book.prototype.parseSummary = function() {
-    var that = this;
-
-    var filename = that.config.getStructure('summary', true);
-    that.log.debug.ln('start parsing summary:', filename);
-
-    return that.findFile(filename)
-    .then(function(summary) {
-        if (!summary) throw 'No SUMMARY file';
-
-        // Remove the summary from the list of files to parse
-        that.summaryFile = summary.path;
-        that._defaultsStructure(that.summaryFile);
-        that.files = _.without(that.files, that.summaryFile);
-
-        that.log.debug.ln('summary located at', that.summaryFile);
-        return that.template.renderFile(that.summaryFile)
-        .then(function(content) {
-            return summary.parser.summary(content, {
-                entryPoint: that.readmeFile,
-                entryPointTitle: that.i18n('SUMMARY_INTRODUCTION'),
-                files: that.files
-            })
-            .fail(function(err) {
-                throw that.normError(err, {
-                    name: err.name || 'Summary Parse Error',
-                    fileName: that.summaryFile
-                });
-            });
-        });
-    })
-    .then(function(summary) {
-        that.summary = summary;
-        that.navigation = parseNavigation(that.summary, that.files);
-    });
-};
-
-// Parse glossary to extract terms
-Book.prototype.parseGlossary = function() {
-    var that = this;
-
-    var filename = that.config.getStructure('glossary', true);
-    that.log.debug.ln('start parsing glossary: ', filename);
-
-    return that.findFile(filename)
-    .then(function(glossary) {
-        if (!glossary) return [];
-
-        // Remove the glossary from the list of files to parse
-        that.glossaryFile = glossary.path;
-        that._defaultsStructure(that.glossaryFile);
-        that.files = _.without(that.files, that.glossaryFile);
-
-        that.log.debug.ln('glossary located at', that.glossaryFile);
-        return that.template.renderFile(that.glossaryFile)
-        .then(function(content) {
-            return glossary.parser.glossary(content)
-            .fail(function(err) {
-                throw that.normError(err, {
-                    name: err.name || 'Glossary Parse Error',
-                    fileName: that.glossaryFile
-                });
-            });
-        });
-    })
-    .then(function(glossary) {
-        that.glossary = glossary;
-    });
+// Read a file in the book, throw error if ignored
+Book.prototype.readFile = function(filename) {
+    if (this.isFileIgnored(filename)) return Promise.reject(new error.FileNotFoundError({ filename: filename }));
+    return this.fs.readAsString(this.resolve(filename));
 };
 
-// Parse a page
-Book.prototype.parsePage = function(filename, options) {
-    var that = this, page = {};
-    options = _.defaults(options || {}, {
-        // Transform svg images
-        convertImages: false,
-
-        // Interpolate before templating
-        interpolateTemplate: _.identity,
-
-        // Interpolate after templating
-        interpolateContent: _.identity
-    });
-
-    var interpolate = function(fn) {
-        return Q(fn(page))
-        .then(function(_page) {
-            page = _page || page;
-        });
-    };
-
-    that.log.debug.ln('start parsing file', filename);
-
-    var extension = path.extname(filename);
-    var filetype = parsers.get(extension);
-
-    if (!filetype) return Q.reject(new Error('Can\'t parse file: '+filename));
-
-    // Type of parser used
-    page.type = filetype.name;
-
-    // Path relative to book
-    page.path = filename;
-
-    // Path absolute in the system
-    page.rawPath = path.resolve(that.root, filename);
-
-    // Progress in the book
-    page.progress = parseProgress(that.navigation, filename);
-
-    that.log.debug.ln('render template', filename);
-
-    // Read file content
-    return that.readFile(page.path)
-    .then(function(content) {
-        page.content = content;
-
-        return interpolate(options.interpolateTemplate);
-    })
-
-    // Prepare page markup
-    .then(function() {
-        return filetype.page.prepare(page.content)
-        .then(function(content) {
-            page.content = content;
-        });
-    })
-
-    // Generate template
-    .then(function() {
-        return that.template.renderPage(page);
-    })
-
-    // Prepare and Parse markup
-    .then(function(content) {
-        page.content = content;
-
-        that.log.debug.ln('use file parser', filetype.name, 'for', filename);
-        return filetype.page(page.content);
-    })
-
-    // Post process sections
-    .then(function(_page) {
-        return _.reduce(_page.sections, function(prev, section) {
-            return prev.then(function(_sections) {
-                return that.template.postProcess(section.content || '')
-                .then(function(content) {
-                    section.content = content;
-                    return _sections.concat([section]);
-                });
-            });
-        }, Q([]));
-    })
-
-    // Prepare html
-    .then(function(_sections) {
-        return pageUtil.normalize(_sections, {
-            book: that,
-            convertImages: options.convertImages,
-            input: filename,
-            navigation: that.navigation,
-            base: path.dirname(filename) || './',
-            output: path.dirname(filename) || './',
-            glossary: that.glossary
-        });
-    })
-
-    // Interpolate output
-    .then(function(_sections) {
-        page.sections = _sections;
-        return interpolate(options.interpolateContent);
-    })
-
-    .then(function() {
-        return page;
-    });
+// Get stat infos about a file
+Book.prototype.statFile = function(filename) {
+    if (this.isFileIgnored(filename)) return Promise.reject(new error.FileNotFoundError({ filename: filename }));
+    return this.fs.stat(this.resolve(filename));
 };
 
-// Find file that can be parsed with a specific filename
-Book.prototype.findFile = function(filename) {
+// Find a parsable file using a filename
+Book.prototype.findParsableFile = function(filename) {
     var that = this;
 
     var ext = path.extname(filename);
@@ -614,7 +285,7 @@ Book.prototype.findFile = function(filename) {
 
             var filepath = basename+ext;
 
-            return fs.findFile(that.root, filepath)
+            return that.fs.findFile(that.root, filepath)
             .then(function(realFilepath) {
                 if (!realFilepath) return null;
 
@@ -624,200 +295,64 @@ Book.prototype.findFile = function(filename) {
                 };
             });
         });
-    }, Q(null));
+    }, Promise(null));
 };
 
-// Format a string using a specific markup language
-Book.prototype.formatString = function(extension, content) {
-    return Q()
-    .then(function() {
-        var filetype = parsers.get(extension);
-        if (!filetype) throw new Error('Filetype doesn\'t exist: '+filetype);
-
-        return filetype.page(content);
-    })
-
-    // Merge sections
-    .then(function(page) {
-        return _.reduce(page.sections, function(content, section) {
-            return content + section.content;
-        }, '');
-    });
-};
-
-// Check if a file exists in the book
-Book.prototype.fileExists = function(filename) {
-    return fs.exists(
-        this.resolve(filename)
-    );
+// Return true if book is associated to a language
+Book.prototype.isLanguageBook = function() {
+    return Boolean(this.parent);
 };
+Book.prototype.isSubBook = Book.prototype.isLanguageBook;
 
-// Check if a file path is inside the book
-Book.prototype.fileIsInBook = function(filename) {
-    return pathUtil.isInRoot(this.root, filename);
+// Return true if the book is main instance of a multilingual book
+Book.prototype.isMultilingual = function() {
+    return this.langs.count() > 0;
 };
 
-// Read a file
-Book.prototype.readFile = function(filename) {
-    return fs.readFile(
-        this.resolve(filename),
-        { encoding: 'utf8' }
+// Return true if file is in the scope of this book
+Book.prototype.isInBook = function(filename) {
+    return pathUtil.isInRoot(
+        this.root,
+        filename
     );
 };
 
-// Return stat for a file
-Book.prototype.statFile = function(filename) {
-    return fs.stat(this.resolve(filename));
-};
-
-// List all files in the book
-Book.prototype.listAllFiles = function() {
+// Return true if file is in the scope of a child book
+Book.prototype.isInLanguageBook = function(filename) {
     var that = this;
 
-    return fs.list(this.root, {
-        ignoreFiles: ['.ignore', '.gitignore', '.bookignore'],
-        ignoreRules: [
-            // Skip Git stuff
-            '.git/',
-            '.gitignore',
-
-            // Skip OS X meta data
-            '.DS_Store',
-
-            // Skip stuff installed by plugins
-            'node_modules',
-
-            // Skip book outputs
-            '_book',
-            '*.pdf',
-            '*.epub',
-            '*.mobi',
-
-            // Skip config files
-            '.ignore',
-            '.bookignore',
-            'book.json',
-        ]
-    })
-    .then(function(_files) {
-        that.files = _files;
+    return _.some(this.langs.list(), function(lang) {
+        return pathUtil.isInRoot(
+            that.resolve(lang.id),
+            that.resolve(filename)
+        );
     });
 };
 
-// Return true if the book is a multilingual book
-Book.prototype.isMultilingual = function() {
-    return this.books.length > 0;
-};
-
-// Return root of the parent
-Book.prototype.parentRoot = function() {
-    if (this.parent) return this.parent.parentRoot();
-    return this.root;
-};
-
-// Return true if it's a sub-book
-Book.prototype.isSubBook = function() {
-    return !!this.parent;
-};
-
-// Test if the file is the entry point
-Book.prototype.isEntryPoint = function(fp) {
-    return fp == this.readmeFile;
-};
-
-// Alias to book.config.get
-Book.prototype.getConfig = function(key, def) {
-    return this.config.get(key, def);
-};
-
-// Resolve a path in the book source
-// Enforce that the output path in the root folder
-Book.prototype.resolve = function() {
-    return pathUtil.resolveInRoot.apply(null, [this.root].concat(_.toArray(arguments)));
-};
-
-// Resolve a path in the book output
-// Enforce that the output path in the output folder
-Book.prototype.resolveOutput = function() {
-    return pathUtil.resolveInRoot.apply(null, [this.options.output].concat(_.toArray(arguments)));
-};
-
-// Convert an abslute path into a relative path to this
-Book.prototype.relative = function(p) {
-    return path.relative(this.root, p);
-};
-
-// Normalize a path to .html and convert README -> index
-Book.prototype.contentPath = function(link) {
-    if (
-        path.basename(link, path.extname(link)) == 'README' ||
-        link == this.readmeFile
-    ) {
-        link = path.join(path.dirname(link), 'index'+path.extname(link));
-    }
-
-    link = links.changeExtension(link, '.html');
-    return link;
-};
-
-// Normalize a link to .html and convert README -> index
-Book.prototype.contentLink = function(link) {
-    return links.normalize(this.contentPath(link));
-};
-
-// Default structure paths to an extension
-Book.prototype._defaultsStructure = function(filename) {
-    var that = this;
-    var extension = path.extname(filename);
-
-    that.readmeFile = that.readmeFile || that.config.getStructure('readme')+extension;
-    that.summaryFile = that.summaryFile || that.config.getStructure('summary')+extension;
-    that.glossaryFile = that.glossaryFile || that.config.getStructure('glossary')+extension;
-    that.langsFile = that.langsFile || that.config.getStructure('langs')+extension;
-};
-
-// Change output path
-Book.prototype.setOutput = function(p) {
-    var that = this;
-    this.options.output = path.resolve(p);
-
-    _.each(this.books, function(book) {
-        book.setOutput(path.join(that.options.output, book.options.language));
+// Locate a book in a folder
+// - Read the ".gitbook" is exists
+// - Try the folder itself
+// - Try a "docs" folder
+Book.locate = function(fs, root) {
+    return fs.readAsString(path.join(root, '.gitbook'))
+    .then(function(content) {
+        return path.join(root, content);
+    }, function() {
+        // .gitbook doesn't exists, fall back to the root folder
+        return Promise(root);
     });
 };
 
-// Translate a strign according to the book language
-Book.prototype.i18n = function() {
-    var args = Array.prototype.slice.call(arguments);
-    return i18n.__.apply({}, [this.config.normalizeLanguage()].concat(args));
-};
-
-// Normalize error
-Book.prototype.normError = function(err, opts, defs) {
-    if (_.isString(err)) err = new Error(err);
-
-    // Extend err
-    _.extend(err, opts || {});
-    _.defaults(err, defs || {});
-
-    err.lineNumber = err.lineNumber || err.lineno;
-    err.columnNumber = err.columnNumber || err.colno;
-
-    err.toString = function() {
-        var attributes = [];
-
-        if (this.fileName) attributes.push('In file \''+this.fileName+'\'');
-        if (this.lineNumber) attributes.push('Line '+this.lineNumber);
-        if (this.columnNumber) attributes.push('Column '+this.columnNumber);
-        return (this.name || 'Error')+': '+this.message+((attributes.length > 0)? ' ('+attributes.join(', ')+')' : '');
-    };
-
-    return err;
+// Locate and setup a book
+Book.setup = function(fs, root, opts) {
+    return Book.locate(fs, root)
+    .then(function(_root) {
+        return new Book(_.extend(opts || {}, {
+            root: _root,
+            fs: fs
+        }));
+    });
 };
 
-// Call a hook in plugins
-Book.prototype.callHook = function(name, data) {
-    return this.plugins.hook(name, data);
-};
 
-module.exports= Book;
+module.exports = Book;
diff --git a/lib/cli/helper.js b/lib/cli/helper.js
new file mode 100644
index 0000000..e4dc8da
--- /dev/null
+++ b/lib/cli/helper.js
@@ -0,0 +1,139 @@
+var _ = require('lodash');
+var path = require('path');
+
+var Book = require('../book');
+var NodeFS = require('../fs/node');
+var Logger = require('../utils/logger');
+var Promise = require('../utils/promise');
+var fs = require('../utils/fs');
+var JSONOutput = require('../output/json');
+var WebsiteOutput = require('../output/website');
+var EBookOutput = require('../output/ebook');
+
+var nodeFS = new NodeFS();
+
+var LOG_OPTION = {
+    name: 'log',
+    description: 'Minimum log level to display',
+    values: _.chain(Logger.LEVELS)
+        .keys()
+        .map(function(s) {
+            return s.toLowerCase();
+        })
+        .value(),
+    defaults: 'info'
+};
+
+var FORMAT_OPTION = {
+    name: 'format',
+    description: 'Format to build to',
+    values: ['website', 'json', 'ebook'],
+    defaults: 'website'
+};
+
+var FORMATS = {
+    json: JSONOutput,
+    website: WebsiteOutput,
+    ebook: EBookOutput
+};
+
+// Commands which is processing a book
+// the root of the book is the first argument (or current directory)
+function bookCmd(fn) {
+    return function(args, kwargs) {
+        var input = path.resolve(args[0] || process.cwd());
+        return Book.setup(nodeFS, input, {
+            logLevel: kwargs.log
+        })
+        .then(function(book) {
+            return fn(book, args.slice(1), kwargs);
+        });
+    };
+}
+
+// Commands which is working on a Output instance
+function outputCmd(fn) {
+    return bookCmd(function(book, args, kwargs) {
+        var Out = FORMATS[kwargs.format];
+        var outputFolder = undefined;
+
+        // Set output folder
+        if (args[0]) {
+            outputFolder = path.resolve(process.cwd(), args[0]);
+        }
+
+        return fn(new Out(book, {
+            root: outputFolder
+        }), args);
+    });
+}
+
+// Command to generate an ebook
+function ebookCmd(format) {
+    return {
+        name: format + ' [book] [output] [file]',
+        description: 'generates ebook '+format,
+        options: [
+            LOG_OPTION
+        ],
+        exec: bookCmd(function(book, args, kwargs) {
+            return fs.tmpDir()
+            .then(function(dir) {
+                var ext = '.'+format;
+                var outputFile = path.resolve(process.cwd(), args[1] || ('book' + ext));
+                var output = new EBookOutput(book, {
+                    root: dir,
+                    format: format
+                });
+
+                return output.book.parse()
+                .then(function() {
+                    return output.generate();
+                })
+
+                // Copy the ebook files
+                .then(function() {
+                    if (output.book.isMultilingual()) {
+                        return Promise.serie(output.book.langs.list(), function(lang) {
+                            var _outputFile = path.join(
+                                path.dirname(outputFile),
+                                path.basename(outputFile, ext) + '_' + lang.id + ext
+                            );
+
+                            return fs.copy(
+                                path.resolve(dir, lang.id, 'index' + ext),
+                                _outputFile
+                            );
+                        })
+                        .thenResolve(output.book.langs.count());
+                    } else {
+                        return fs.copy(
+                            path.resolve(dir, 'index' + ext),
+                            outputFile
+                        ).thenResolve(1);
+                    }
+                })
+                .then(function(n) {
+                    output.book.log.info.ok(n+' file(s) generated');
+
+                    output.book.log.info('cleaning up... ');
+                    return output.book.log.info.promise(fs.rmDir(dir));
+                });
+            });
+        })
+    };
+}
+
+module.exports = {
+    nodeFS: nodeFS,
+    bookCmd: bookCmd,
+    outputCmd: outputCmd,
+    ebookCmd: ebookCmd,
+
+    options: {
+        log: LOG_OPTION,
+        format: FORMAT_OPTION
+    },
+
+    FORMATS: FORMATS
+};
diff --git a/lib/cli/index.js b/lib/cli/index.js
new file mode 100644
index 0000000..4d3d364
--- /dev/null
+++ b/lib/cli/index.js
@@ -0,0 +1,187 @@
+/* eslint-disable no-console */
+
+var _ = require('lodash');
+var path = require('path');
+var tinylr = require('tiny-lr');
+
+var Promise = require('../utils/promise');
+var PluginsManager = require('../plugins');
+var Book = require('../book');
+
+var helper = require('./helper');
+var Server = require('./server');
+var watch = require('./watch');
+
+module.exports = {
+    commands: [
+
+        {
+            name: 'parse [book]',
+            description: 'parse and returns debug information for a book',
+            options: [
+                helper.options.log
+            ],
+            exec: helper.bookCmd(function(book) {
+                return book.parse()
+                .then(function() {
+                    book.log.info.ln('Book located in:', book.root);
+                    book.log.info.ln('');
+
+                    if (book.config.exists()) book.log.info.ln('Configuration:', book.config.path);
+
+                    if (book.isMultilingual()) {
+                        book.log.info.ln('Multilingual book detected:', book.langs.path);
+                    } else {
+                        book.log.info.ln('Readme:', book.readme.path);
+                        book.log.info.ln('Summary:', book.summary.path);
+                        if (book.glossary.exists()) book.log.info.ln('Glossary:', book.glossary.path);
+
+                        book.log.info.ln('Pages:');
+                        _.each(book.pages, function(page) {
+                            book.log.info.ln('\t-', page.path);
+                        });
+                    }
+                });
+            })
+        },
+
+        {
+            name: 'install [book]',
+            description: 'install all plugins dependencies',
+            options: [
+                helper.options.log
+            ],
+            exec: helper.bookCmd(function(book, args) {
+                var plugins = new PluginsManager(book);
+
+                return book.config.load()
+                .then(function() {
+                    return plugins.install();
+                });
+            })
+        },
+
+        {
+            name: 'build [book] [output]',
+            description: 'build a book',
+            options: [
+                helper.options.log,
+                helper.options.format
+            ],
+            exec: helper.outputCmd(function(output, args, kwargs) {
+                return output.book.parse()
+                .then(function() {
+                    return output.generate();
+                });
+            })
+        },
+
+        helper.ebookCmd('pdf'),
+        helper.ebookCmd('epub'),
+        helper.ebookCmd('mobi'),
+
+        {
+            name: 'serve [book]',
+            description: 'Build then serve a book from a directory',
+            options: [
+                {
+                    name: 'port',
+                    description: 'Port for server to listen on',
+                    defaults: 4000
+                },
+                {
+                    name: 'lrport',
+                    description: 'Port for livereload server to listen on',
+                    defaults: 35729
+                },
+                {
+                    name: 'watch',
+                    description: 'Enable/disable file watcher',
+                    defaults: true
+                },
+                helper.options.format,
+                helper.options.log
+            ],
+            exec: function(args, kwargs) {
+                var input = path.resolve(args[0] || process.cwd());
+                var server = new Server();
+
+                // Init livereload server
+                var lrServer = tinylr({});
+                var port = kwargs.port;
+                var lrPath;
+
+                var generate = function() {
+
+                    // Stop server if running
+                    if (server.isRunning()) console.log('Stopping server');
+                    return server.stop()
+
+                    // Generate the book
+                    .then(function() {
+                        return Book.setup(helper.nodeFS, input, {
+                            'logLevel': kwargs.log
+                        })
+                        .then(function(book) {
+                            return book.parse()
+                            .then(function() {
+                                // Add livereload plugin
+                                book.config.set('plugins',
+                                    book.config.get('plugins')
+                                    .concat([
+                                        { name: 'livereload' }
+                                    ])
+                                );
+
+                                var Out = helper.FORMATS[kwargs.format];
+                                var output = new Out(book);
+
+                                return output.generate()
+                                .thenResolve(output);
+                            });
+                        });
+                    })
+
+                    // Start server and watch changes
+                    .then(function(output) {
+                        console.log();
+                        console.log('Starting server ...');
+                        return server.start(output.root(), port)
+                        .then(function() {
+                            console.log('Serving book on http://localhost:'+port);
+
+                            if (lrPath) {
+                                // trigger livereload
+                                lrServer.changed({
+                                    body: {
+                                        files: [lrPath]
+                                    }
+                                });
+                            }
+
+                            if (!kwargs.watch) return;
+
+                            return watch(output.book.root)
+                            .then(function(filepath) {
+                                // set livereload path
+                                lrPath = filepath;
+                                console.log('Restart after change in file', filepath);
+                                console.log('');
+                                return generate();
+                            });
+                        });
+                    });
+                };
+
+                return Promise.nfcall(lrServer.listen.bind(lrServer), kwargs.lrport)
+                .then(function() {
+                    console.log('Live reload server started on port:', kwargs.lrport);
+                    console.log('Press CTRL+C to quit ...');
+                    console.log('');
+                    return generate();
+                });
+            }
+        }
+
+    ]
+};
diff --git a/lib/utils/server.js b/lib/cli/server.js
index 1d6822f..3bd5d18 100644
--- a/lib/utils/server.js
+++ b/lib/cli/server.js
@@ -1,9 +1,10 @@
-var Q = require("q");
-var events = require("events");
-var http = require("http");
-var send = require("send");
-var util = require("util");
-var url = require("url");
+var events = require('events');
+var http = require('http');
+var send = require('send');
+var util = require('util');
+var url = require('url');
+
+var Promise = require('../utils/promise');
 
 var Server = function() {
     this.running = null;
@@ -21,12 +22,12 @@ Server.prototype.isRunning = function() {
 // Stop the server
 Server.prototype.stop = function() {
     var that = this;
-    if (!this.isRunning()) return Q();
+    if (!this.isRunning()) return Promise();
 
-    var d = Q.defer();
+    var d = Promise.defer();
     this.running.close(function(err) {
         that.running = null;
-        that.emit("state", false);
+        that.emit('state', false);
 
         if (err) d.reject(err);
         else d.resolve();
@@ -40,13 +41,13 @@ Server.prototype.stop = function() {
 };
 
 Server.prototype.start = function(dir, port) {
-    var that = this, pre = Q();
+    var that = this, pre = Promise();
     port = port || 8004;
 
     if (that.isRunning()) pre = this.stop();
     return pre
     .then(function() {
-        var d = Q.defer();
+        var d = Promise.defer();
 
         that.running = http.createServer(function(req, res){
             // Render error
@@ -55,25 +56,25 @@ Server.prototype.start = function(dir, port) {
                 res.end(err.message);
             }
 
-            // Redirect to directory"s index.html
+            // Redirect to directory's index.html
             function redirect() {
                 res.statusCode = 301;
-                res.setHeader("Location", req.url + "/");
-                res.end("Redirecting to " + req.url + "/");
+                res.setHeader('Location', req.url + '/');
+                res.end('Redirecting to ' + req.url + '/');
             }
 
             // Send file
             send(req, url.parse(req.url).pathname)
             .root(dir)
-            .on("error", error)
-            .on("directory", redirect)
+            .on('error', error)
+            .on('directory', redirect)
             .pipe(res);
         });
 
-        that.running.on("connection", function (socket) {
+        that.running.on('connection', function (socket) {
             that.sockets.push(socket);
             socket.setTimeout(4000);
-            socket.on("close", function () {
+            socket.on('close', function () {
                 that.sockets.splice(that.sockets.indexOf(socket), 1);
             });
         });
@@ -83,7 +84,7 @@ Server.prototype.start = function(dir, port) {
 
             that.port = port;
             that.dir = dir;
-            that.emit("state", true);
+            that.emit('state', true);
             d.resolve();
         });
 
diff --git a/lib/cli/watch.js b/lib/cli/watch.js
new file mode 100644
index 0000000..b98faeb
--- /dev/null
+++ b/lib/cli/watch.js
@@ -0,0 +1,42 @@
+var _ = require('lodash');
+var path = require('path');
+var chokidar = require('chokidar');
+
+var Promise = require('../utils/promise');
+var parsers = require('../parsers');
+
+// Watch a folder and resolve promise once a file is modified
+function watch(dir) {
+    var d = Promise.defer();
+    dir = path.resolve(dir);
+
+    var toWatch = [
+        'book.json', 'book.js'
+    ];
+
+    // Watch all parsable files
+    _.each(parsers.extensions, function(ext) {
+        toWatch.push('**/*'+ext);
+    });
+
+    var watcher = chokidar.watch(toWatch, {
+        cwd: dir,
+        ignored: '_book/**',
+        ignoreInitial: true
+    });
+
+    watcher.once('all', function(e, filepath) {
+        watcher.close();
+
+        d.resolve(filepath);
+    });
+    watcher.once('error', function(err) {
+        watcher.close();
+
+        d.reject(err);
+    });
+
+    return d.promise;
+}
+
+module.exports = watch;
diff --git a/lib/config/index.js b/lib/config/index.js
new file mode 100644
index 0000000..7f75733
--- /dev/null
+++ b/lib/config/index.js
@@ -0,0 +1,132 @@
+var _ = require('lodash');
+var semver = require('semver');
+
+var gitbook = require('../gitbook');
+var Promise = require('../utils/promise');
+var validator = require('./validator');
+var plugins = require('./plugins');
+
+// Config files to tested (sorted)
+var CONFIG_FILES = [
+    'book.js',
+    'book.json'
+];
+
+/*
+Config is an interface for the book's configuration stored in "book.json" (or "book.js")
+*/
+
+function Config(book, baseConfig) {
+    this.book = book;
+    this.fs = book.fs;
+    this.log = book.log;
+    this.path = '';
+
+    this.baseConfig = baseConfig || {};
+    this.replace({});
+}
+
+// Load configuration of the book
+// and verify that the configuration is satisfying
+Config.prototype.load = function() {
+    var that = this;
+    var isLanguageBook = this.book.isLanguageBook();
+
+    // Try all potential configuration file
+    return Promise.some(CONFIG_FILES, function(filename) {
+        that.log.debug.ln('try loading configuration from', filename);
+
+        return that.fs.loadAsObject(that.book.resolve(filename))
+        .then(function(_config) {
+            that.log.debug.ln('configuration loaded from', filename);
+
+            that.path = filename;
+            return that.replace(_config);
+        })
+        .fail(function(err) {
+            if (err.code != 'MODULE_NOT_FOUND') throw(err);
+            else return Promise(false);
+        });
+    })
+    .then(function() {
+        if (!isLanguageBook) {
+            if (!gitbook.satisfies(that.options.gitbook)) {
+                throw new Error('GitBook version doesn\'t satisfy version required by the book: '+that.options.gitbook);
+            }
+            if (that.options.gitbook != '*' && !semver.satisfies(semver.inc(gitbook.version, 'patch'), that.options.gitbook)) {
+                that.log.warn.ln('gitbook version specified in your book.json might be too strict for future patches, \''+(_.first(gitbook.version.split('.'))+'.x.x')+'\' is more adequate');
+            }
+
+            that.options.plugins = plugins.toList(that.options.plugins);
+        } else {
+            // Multilingual book should inherits the plugins list from parent
+            that.options.plugins = that.book.parent.config.get('plugins');
+        }
+
+        that.options.gitbook = gitbook.version;
+    });
+};
+
+// Replace the whole configuration
+Config.prototype.replace = function(options) {
+    var that = this;
+
+    // Extend base config
+    options = _.defaults(_.cloneDeep(options), this.baseConfig);
+
+    // Validate the config
+    this.options = validator.validate(options);
+
+    // options.input == book.root
+    Object.defineProperty(this.options, 'input', {
+        get: function () {
+            return that.book.root;
+        }
+    });
+
+    // options.originalInput == book.parent.root
+    Object.defineProperty(this.options, 'originalInput', {
+        get: function () {
+            return that.book.parent? that.book.parent.root : undefined;
+        }
+    });
+};
+
+// Return true if book has a configuration file
+Config.prototype.exists = function() {
+    return Boolean(this.path);
+};
+
+// Return path to a structure file
+// Strip the extension by default
+Config.prototype.getStructure = function(name, dontStripExt) {
+    var filename = this.options.structure[name];
+    if (dontStripExt) return filename;
+
+    filename = filename.split('.').slice(0, -1).join('.');
+    return filename;
+};
+
+// Return a configuration using a key and a default value
+Config.prototype.get = function(key, def) {
+    return _.get(this.options, key, def);
+};
+
+// Update a configuration
+Config.prototype.set = function(key, value) {
+    return _.set(this.options, key, value);
+};
+
+// Return a dump of the configuration
+Config.prototype.dump = function() {
+    return _.cloneDeep(this.options);
+};
+
+// Return templating context
+Config.prototype.getContext = function() {
+    return {
+        config: this.book.config.dump()
+    };
+};
+
+module.exports = Config;
diff --git a/lib/config/plugins.js b/lib/config/plugins.js
new file mode 100644
index 0000000..5d98736
--- /dev/null
+++ b/lib/config/plugins.js
@@ -0,0 +1,67 @@
+var _ = require('lodash');
+
+// Default plugins added to each books
+var DEFAULT_PLUGINS = ['highlight', 'search', 'sharing', 'fontsettings', 'theme-default'];
+
+// Return true if a plugin is a default plugin
+function isDefaultPlugin(name, version) {
+    return _.contains(DEFAULT_PLUGINS, name);
+}
+
+// Normalize a list of plugins to use
+function normalizePluginsList(plugins) {
+    // Normalize list to an array
+    plugins = _.isString(plugins) ? plugins.split(',') : (plugins || []);
+
+    // Remove empty parts
+    plugins = _.compact(plugins);
+
+    // Divide as {name, version} to handle format like 'myplugin@1.0.0'
+    plugins = _.map(plugins, function(plugin) {
+        if (plugin.name) return plugin;
+
+        var parts = plugin.split('@');
+        var name = parts[0];
+        var version = parts[1];
+        return {
+            'name': name,
+            'version': version // optional
+        };
+    });
+
+    // List plugins to remove
+    var toremove = _.chain(plugins)
+    .filter(function(plugin) {
+        return plugin.name.length > 0 && plugin.name[0] == '-';
+    })
+    .map(function(plugin) {
+        return plugin.name.slice(1);
+    })
+    .value();
+
+    // Merge with defaults
+    _.each(DEFAULT_PLUGINS, function(plugin) {
+        if (_.find(plugins, { name: plugin })) {
+            return;
+        }
+
+        plugins.push({
+            'name': plugin
+        });
+    });
+    // Remove plugin that start with '-'
+    plugins = _.filter(plugins, function(plugin) {
+        return !_.contains(toremove, plugin.name) && !(plugin.name.length > 0 && plugin.name[0] == '-');
+    });
+
+    // Remove duplicates
+    plugins = _.uniq(plugins, 'name');
+
+    return plugins;
+}
+
+module.exports = {
+    isDefaultPlugin: isDefaultPlugin,
+    toList: normalizePluginsList
+};
+
diff --git a/lib/config/schema.js b/lib/config/schema.js
new file mode 100644
index 0000000..34a6c76
--- /dev/null
+++ b/lib/config/schema.js
@@ -0,0 +1,188 @@
+module.exports = {
+    '$schema': 'http://json-schema.org/schema#',
+    'id': 'https://gitbook.com/schemas/book.json',
+    'title': 'GitBook Configuration',
+    'type': 'object',
+    'properties': {
+        'title': {
+            'type': 'string',
+            'title': 'Title of the book, default is extracted from README'
+        },
+        'title': {
+            'type': 'string',
+            'title': 'Description of the book, default is extracted from README'
+        },
+        'isbn': {
+            'type': 'string',
+            'title': 'ISBN for published book'
+        },
+        'author': {
+            'type': 'string',
+            'title': 'Name of the author'
+        },
+        'gitbook': {
+            'type': 'string',
+            'default': '*',
+            'title': 'GitBook version to match'
+        },
+        'direction': {
+            'type': 'string',
+            'enum': ['ltr', 'rtl'],
+            'title': 'Direction of texts, default is detected in the pages'
+        },
+        'theme': {
+            'type': 'string',
+            'default': 'default',
+            'title': 'Name of the theme plugin to use'
+        },
+        'variables': {
+            'type': 'object',
+            'title': 'Templating context variables'
+        },
+        'plugins': {
+            'oneOf': [
+                { '$ref': '#/definitions/pluginsArray' },
+                { '$ref': '#/definitions/pluginsString' }
+            ],
+            'default': []
+        },
+        'pluginsConfig': {
+            'type': 'object',
+            'title': 'Configuration for plugins'
+        },
+        'structure': {
+            'type': 'object',
+            'properties': {
+                'langs': {
+                    'default': 'LANGS.md',
+                    'type': 'string',
+                    'title': 'File to use as languages index',
+                    'pattern': '^[0-9a-zA-Z ... ]+$'
+                },
+                'readme': {
+                    'default': 'README.md',
+                    'type': 'string',
+                    'title': 'File to use as preface',
+                    'pattern': '^[0-9a-zA-Z ... ]+$'
+                },
+                'glossary': {
+                    'default': 'GLOSSARY.md',
+                    'type': 'string',
+                    'title': 'File to use as glossary index',
+                    'pattern': '^[0-9a-zA-Z ... ]+$'
+                },
+                'summary': {
+                    'default': 'SUMMARY.md',
+                    'type': 'string',
+                    'title': 'File to use as table of contents',
+                    'pattern': '^[0-9a-zA-Z ... ]+$'
+                }
+            },
+            'additionalProperties': false
+        },
+        'pdf': {
+            'type': 'object',
+            'title': 'PDF specific configurations',
+            'properties': {
+                'pageNumbers': {
+                    'type': 'boolean',
+                    'default': true,
+                    'title': 'Add page numbers to the bottom of every page'
+                },
+                'fontSize': {
+                    'type': 'integer',
+                    'minimum': 8,
+                    'maximum': 30,
+                    'default': 12,
+                    'title': 'Font size for the PDF output'
+                },
+                'fontFamily': {
+                    'type': 'string',
+                    'default': 'Arial',
+                    'title': 'Font family for the PDF output'
+                },
+                'paperSize': {
+                    'type': 'string',
+                    'enum': ['a0', 'a1', 'a2', 'a3', 'a4', 'a5', 'a6', 'b0', 'b1', 'b2', 'b3', 'b4', 'b5', 'b6', 'legal', 'letter'],
+                    'default': 'a4',
+                    'title': 'Paper size for the PDF'
+                },
+                'chapterMark': {
+                    'type': 'string',
+                    'enum': ['pagebreak', 'rule', 'both', 'none'],
+                    'default': 'pagebreak',
+                    'title': 'How to mark detected chapters'
+                },
+                'pageBreaksBefore': {
+                    'type': 'string',
+                    'default': '/',
+                    'title': 'An XPath expression. Page breaks are inserted before the specified elements. To disable use the expression: "/"'
+                },
+                'margin': {
+                    'type': 'object',
+                    'properties': {
+                        'right': {
+                            'type': 'integer',
+                            'title': 'Right Margin',
+                            'minimum': 0,
+                            'maximum': 100,
+                            'default': 62
+                        },
+                        'left': {
+                            'type': 'integer',
+                            'title': 'Left Margin',
+                            'minimum': 0,
+                            'maximum': 100,
+                            'default': 62
+                        },
+                        'top': {
+                            'type': 'integer',
+                            'title': 'Top Margin',
+                            'minimum': 0,
+                            'maximum': 100,
+                            'default': 56
+                        },
+                        'bottom': {
+                            'type': 'integer',
+                            'title': 'Bottom Margin',
+                            'minimum': 0,
+                            'maximum': 100,
+                            'default': 56
+                        }
+                    }
+                }
+            }
+        }
+    },
+    'required': [],
+    'definitions': {
+        'pluginsArray': {
+            'type': 'array',
+            'items': {
+                'oneOf': [
+                    { '$ref': '#/definitions/pluginObject' },
+                    { '$ref': '#/definitions/pluginString' }
+                ]
+            }
+        },
+        'pluginsString': {
+            'type': 'string'
+        },
+        'pluginString': {
+            'type': 'string'
+        },
+        'pluginObject': {
+            'type': 'object',
+            'properties': {
+                'name': {
+                    'type': 'string'
+                },
+                'version': {
+                    'type': 'string'
+                }
+            },
+            'additionalProperties': false,
+            'required': ['name']
+        }
+    }
+};
diff --git a/lib/config/validator.js b/lib/config/validator.js
new file mode 100644
index 0000000..764b19a
--- /dev/null
+++ b/lib/config/validator.js
@@ -0,0 +1,28 @@
+var jsonschema = require('jsonschema');
+var jsonSchemaDefaults = require('json-schema-defaults');
+var mergeDefaults = require('merge-defaults');
+
+var schema = require('./schema');
+var error = require('../utils/error');
+
+// Validate a book.json content
+// And return a mix with the default value
+function validate(bookJson) {
+    var v = new jsonschema.Validator();
+    var result = v.validate(bookJson, schema, {
+        propertyName: 'config'
+    });
+
+    // Throw error
+    if (result.errors.length > 0) {
+        throw new error.ConfigurationError(new Error(result.errors[0].stack));
+    }
+
+    // Insert default values
+    var defaults = jsonSchemaDefaults(schema);
+    return mergeDefaults(bookJson, defaults);
+}
+
+module.exports = {
+    validate: validate
+};
diff --git a/lib/config_default.js b/lib/config_default.js
deleted file mode 100644
index 604003d..0000000
--- a/lib/config_default.js
+++ /dev/null
@@ -1,109 +0,0 @@
-var path = require('path');
-
-module.exports = {
-    // Options that can't be extend
-    'configFile': 'book',
-    'generator': 'website',
-    'extension': null,
-
-    // Book metadats (somes are extracted from the README by default)
-    'title': null,
-    'description': null,
-    'isbn': null,
-    'language': 'en',
-    'direction': null,
-    'author': null,
-
-    // version of gitbook to use
-    'gitbook': '*',
-
-    // Structure
-    'structure': {
-        'langs': 'LANGS.md',
-        'readme': 'README.md',
-        'glossary': 'GLOSSARY.md',
-        'summary': 'SUMMARY.md'
-    },
-
-    // CSS Styles
-    'styles': {
-        'website': 'styles/website.css',
-        'print': 'styles/print.css',
-        'ebook': 'styles/ebook.css',
-        'pdf': 'styles/pdf.css',
-        'mobi': 'styles/mobi.css',
-        'epub': 'styles/epub.css'
-    },
-
-    // Plugins list, can contain '-name' for removing default plugins
-    'plugins': [],
-
-    // Global configuration for plugins
-    'pluginsConfig': {},
-
-    // Variables for templating
-    'variables': {},
-
-    // Set another theme with your own layout
-    // It's recommended to use plugins or add more options for default theme, though
-    // See https://github.com/GitbookIO/gitbook/issues/209
-    'theme': path.resolve(__dirname, '../theme'),
-
-    // Links in template (null: default, false: remove, string: new value)
-    'links': {
-        // Custom links at top of sidebar
-        'sidebar': {
-            // 'Custom link name': 'https://customlink.com'
-        },
-
-        // Sharing links
-        'sharing': {
-            'google': null,
-            'facebook': null,
-            'twitter': null,
-            'weibo': null,
-            'all': null
-        }
-    },
-
-
-    // Options for PDF generation
-    'pdf': {
-        // Add toc at the end of the file
-        'toc': true,
-
-        // Add page numbers to the bottom of every page
-        'pageNumbers': false,
-
-        // Font for the file content
-        'fontSize': 12,
-        'fontFamily': 'Arial',
-
-        // Paper size for the pdf
-        // Choices are [u’a0’, u’a1’, u’a2’, u’a3’, u’a4’, u’a5’, u’a6’, u’b0’, u’b1’, u’b2’, u’b3’, u’b4’, u’b5’, u’b6’, u’legal’, u’letter’]
-        'paperSize': 'a4',
-
-        // How to mark detected chapters.
-        // Choices are “pagebreak”, “rule”, 'both' or “none”.
-        'chapterMark' : 'pagebreak',
-
-        // An XPath expression. Page breaks are inserted before the specified elements.
-        // To disable use the expression: '/'
-        'pageBreaksBefore': '/',
-
-        // Margin (in pts)
-        // Note: 72 pts equals 1 inch
-        'margin': {
-            'right': 62,
-            'left': 62,
-            'top': 56,
-            'bottom': 56
-        },
-
-        // Header HTML template. Available variables: _PAGENUM_, _TITLE_, _AUTHOR_ and _SECTION_.
-        'headerTemplate': null,
-
-        // Footer HTML template. Available variables: _PAGENUM_, _TITLE_, _AUTHOR_ and _SECTION_.
-        'footerTemplate': null
-    }
-};
diff --git a/lib/configuration.js b/lib/configuration.js
deleted file mode 100644
index dd95585..0000000
--- a/lib/configuration.js
+++ /dev/null
@@ -1,210 +0,0 @@
-var _ = require('lodash');
-var Q = require('q');
-var path = require('path');
-var semver = require('semver');
-
-var pkg = require('../package.json');
-var i18n = require('./utils/i18n');
-var version = require('./version');
-
-var DEFAULT_CONFIG = require('./config_default');
-
-// Default plugins added to each books
-var DEFAULT_PLUGINS = ['highlight', 'search', 'sharing', 'fontsettings'];
-
-// Check if a plugin is a default plugin
-// Plugin should be in the list
-// And version from book.json specified for this plugin should be satisfied
-function isDefaultPlugin(name, version) {
-    if (!_.contains(DEFAULT_PLUGINS, name)) return false;
-
-    try {
-        var pluginPkg = require('gitbook-plugin-'+name+'/package.json');
-        return semver.satisfies(pluginPkg.version, version || '*');
-    } catch(e) {
-        return false;
-    }
-}
-
-// Normalize a list of plugins to use
-function normalizePluginsList(plugins, addDefaults) {
-    // Normalize list to an array
-    plugins = _.isString(plugins) ? plugins.split(',') : (plugins || []);
-
-    // Remove empty parts
-    plugins = _.compact(plugins);
-
-    // Divide as {name, version} to handle format like 'myplugin@1.0.0'
-    plugins = _.map(plugins, function(plugin) {
-        if (plugin.name) return plugin;
-
-        var parts = plugin.split('@');
-        var name = parts[0];
-        var version = parts[1];
-        return {
-            'name': name,
-            'version': version, // optional
-            'isDefault': isDefaultPlugin(name, version)
-        };
-    });
-
-    // List plugins to remove
-    var toremove = _.chain(plugins)
-    .filter(function(plugin) {
-        return plugin.name.length > 0 && plugin.name[0] == '-';
-    })
-    .map(function(plugin) {
-        return plugin.name.slice(1);
-    })
-    .value();
-
-    // Merge with defaults
-    if (addDefaults !== false) {
-        _.each(DEFAULT_PLUGINS, function(plugin) {
-            if (_.find(plugins, { name: plugin })) {
-                return;
-            }
-
-            plugins.push({
-                'name': plugin,
-                'isDefault': true
-            });
-        });
-    }
-
-    // Remove plugin that start with '-'
-    plugins = _.filter(plugins, function(plugin) {
-        return !_.contains(toremove, plugin.name) && !(plugin.name.length > 0 && plugin.name[0] == '-');
-    });
-
-    // Remove duplicates
-    plugins = _.uniq(plugins, 'name');
-
-    return plugins;
-}
-
-var Configuration = function(book, options) {
-    this.book = book;
-    this.replace(options);
-};
-
-// Read and parse the configuration
-Configuration.prototype.load = function() {
-    var that = this;
-
-    return Q()
-    .then(function() {
-        var configPath, _config;
-
-        try {
-            configPath = require.resolve(
-                that.book.resolve(that.options.configFile)
-            );
-
-            // Invalidate node.js cache for livreloading
-            delete require.cache[configPath];
-
-            _config = require(configPath);
-            that.options = _.merge(
-                that.options,
-                _.omit(_config, 'configFile', 'defaultsPlugins', 'generator', 'extension')
-            );
-        }
-        catch(err) {
-            if (err instanceof SyntaxError) return Q.reject(err);
-            return Q();
-        }
-    })
-    .then(function() {
-        if (!that.book.isSubBook()) {
-            if (!version.satisfies(that.options.gitbook)) {
-                throw new Error('GitBook version doesn\'t satisfy version required by the book: '+that.options.gitbook);
-            }
-            if (that.options.gitbook != '*' && !semver.satisfies(semver.inc(pkg.version, 'patch'), that.options.gitbook)) {
-                that.book.log.warn.ln('gitbook version specified in your book.json might be too strict for future patches, \''+(_.first(pkg.version.split('.'))+'.x.x')+'\' is more adequate');
-            }
-        }
-
-        that.options.output = path.resolve(that.options.output || that.book.resolve('_book'));
-        that.options.plugins = normalizePluginsList(that.options.plugins);
-        that.options.defaultsPlugins = normalizePluginsList(that.options.defaultsPlugins || '', false);
-        that.options.plugins = _.union(that.options.plugins, that.options.defaultsPlugins);
-        that.options.plugins = _.uniq(that.options.plugins, 'name');
-
-        // Default value for text direction (from language)
-        if (!that.options.direction) {
-            var lang = i18n.getCatalog(that.options.language);
-            if (lang) that.options.direction = lang.direction;
-        }
-
-        that.options.gitbook = pkg.version;
-    });
-};
-
-// Extend the configuration
-Configuration.prototype.extend = function(options) {
-    _.extend(this.options, options);
-};
-
-// Replace the whole configuration
-Configuration.prototype.replace = function(options) {
-    var that = this;
-
-    this.options = _.cloneDeep(DEFAULT_CONFIG);
-    this.options = _.merge(this.options, options || {});
-
-    // options.input == book.root
-    Object.defineProperty(this.options, 'input', {
-        get: function () {
-            return that.book.root;
-        }
-    });
-
-    // options.originalInput == book.parent.root
-    Object.defineProperty(this.options, 'originalInput', {
-        get: function () {
-            return that.book.parent? that.book.parent.root : undefined;
-        }
-    });
-
-    // options.originalOutput == book.parent.options.output
-    Object.defineProperty(this.options, 'originalOutput', {
-        get: function () {
-            return that.book.parent? that.book.parent.options.output : undefined;
-        }
-    });
-};
-
-// Dump configuration as json object
-Configuration.prototype.dump = function() {
-    return _.cloneDeep(this.options);
-};
-
-// Get structure file
-Configuration.prototype.getStructure = function(name, dontStripExt) {
-    var filename = this.options.structure[name];
-    if (dontStripExt) return filename;
-
-    filename = filename.split('.').slice(0, -1).join('.');
-    return filename;
-};
-
-// Return normalized language
-Configuration.prototype.normalizeLanguage = function() {
-    return i18n.normalizeLanguage(this.options.language);
-};
-
-// Return a configuration
-Configuration.prototype.get = function(key, def) {
-    return _.get(this.options, key, def);
-};
-
-// Update a configuration
-Configuration.prototype.set = function(key, value) {
-    return _.set(this.options, key, value);
-};
-
-// Default configuration
-Configuration.DEFAULT = DEFAULT_CONFIG;
-
-module.exports= Configuration;
diff --git a/lib/conrefs_loader.js b/lib/conrefs_loader.js
deleted file mode 100644
index 255bf06..0000000
--- a/lib/conrefs_loader.js
+++ /dev/null
@@ -1,73 +0,0 @@
-var _ = require('lodash');
-var path = require('path');
-var nunjucks = require('nunjucks');
-
-var git = require('./utils/git');
-var fs = require('./utils/fs');
-var pathUtil = require('./utils/path');
-
-// The loader should handle relative and git url
-var BookLoader = nunjucks.Loader.extend({
-    async: true,
-
-    init: function(book, opts) {
-        this.opts = _.defaults(opts || {}, {
-            interpolate: _.identity
-        });
-        this.book = book;
-    },
-
-    getSource: function(fileurl, callback) {
-        var that = this;
-
-        git.resolveFile(fileurl)
-        .then(function(filepath) {
-            // Is local file
-            if (!filepath) filepath = path.resolve(fileurl);
-            else that.book.log.debug.ln('resolve from git', fileurl, 'to', filepath);
-
-            //  Read file from absolute path
-            return fs.readFile(filepath)
-            .then(function(source) {
-                return that.opts.interpolate(filepath, source.toString());
-            })
-            .then(function(source) {
-                return {
-                    src: source,
-                    path: filepath,
-
-                    // We disable cache sincde content is modified (shortcuts, ...)
-                    noCache: true
-                };
-            });
-        })
-        .nodeify(callback);
-    },
-
-    resolve: function(from, to) {
-        // If origin is in the book, we enforce result file to be in the book
-        if (this.book.fileIsInBook(from)) {
-            return this.book.resolve(
-                this.book.relative(path.dirname(from)),
-                to
-            );
-        }
-
-        // If origin is in a git repository, we resolve file in the git repository
-        var gitRoot = git.resolveRoot(from);
-        if (gitRoot) {
-            return pathUtil.resolveInRoot(gitRoot, to);
-        }
-
-        // If origin is not in the book (include from a git content ref)
-        return path.resolve(path.dirname(from), to);
-    },
-
-    // Handle all files as relative, so that nunjucks pass responsability to 'resolve'
-    // Only git urls are considered as absolute
-    isRelative: function(filename) {
-        return !git.checkUrl(filename);
-    }
-});
-
-module.exports = BookLoader;
diff --git a/lib/fs/index.js b/lib/fs/index.js
new file mode 100644
index 0000000..8a3ca1e
--- /dev/null
+++ b/lib/fs/index.js
@@ -0,0 +1,106 @@
+var _ = require('lodash');
+var path = require('path');
+
+var Promise = require('../utils/promise');
+
+/*
+A filesystem is an interface to read files
+GitBook can works with a virtual filesystem, for example in the browser.
+*/
+
+// .readdir return files/folder as a list of string, folder ending with '/'
+function pathIsFolder(filename) {
+    return _.last(filename) == '/' || _.last(filename) == '\\';
+}
+
+
+function FS() {
+
+}
+
+// Check if a file exists, run a Promise(true) if that's the case, Promise(false) otherwise
+FS.prototype.exists = function(filename) {
+    // To implement for each fs
+};
+
+// Read a file and returns a promise with the content as a buffer
+FS.prototype.read = function(filename) {
+    // To implement for each fs
+};
+
+// Read stat infos about a file
+FS.prototype.stat = function(filename) {
+    // To implement for each fs
+};
+
+// List files/directories in a directory
+FS.prototype.readdir = function(folder) {
+    // To implement for each fs
+};
+
+// These methods don't require to be redefined, by default it uses .exists, .read, .write, .list
+// For optmization, it can be redefined:
+
+// List files in a directory
+FS.prototype.listFiles = function(folder) {
+    return this.readdir(folder)
+    .then(function(files) {
+        return _.reject(files, pathIsFolder);
+    });
+};
+
+// List all files in the fs
+FS.prototype.listAllFiles = function(folder) {
+    var that = this;
+
+    return this.readdir(folder)
+    .then(function(files) {
+        return _.reduce(files, function(prev, file) {
+            return prev.then(function(output) {
+                var isDirectory = pathIsFolder(file);
+
+                if (!isDirectory) {
+                    output.push(file);
+                    return output;
+                } else {
+                    return that.listAllFiles(path.join(folder, file))
+                    .then(function(files) {
+                        return output.concat(_.map(files, function(_file) {
+                            return path.join(file, _file);
+                        }));
+                    });
+                }
+            });
+        }, Promise([]));
+    });
+};
+
+// Read a file as a string (utf-8)
+FS.prototype.readAsString = function(filename) {
+    return this.read(filename)
+    .then(function(buf) {
+        return buf.toString('utf-8');
+    });
+};
+
+// Find a file in a folder (case incensitive)
+// Return the real filename
+FS.prototype.findFile = function findFile(root, filename) {
+    return this.listFiles(root)
+    .then(function(files) {
+        return _.find(files, function(file) {
+            return (file.toLowerCase() == filename.toLowerCase());
+        });
+    });
+};
+
+// Load a JSON file
+// By default, fs only supports JSON
+FS.prototype.loadAsObject = function(filename) {
+    return this.readAsString(filename)
+    .then(function(str) {
+        return JSON.parse(str);
+    });
+};
+
+module.exports = FS;
diff --git a/lib/fs/node.js b/lib/fs/node.js
new file mode 100644
index 0000000..fc2517e
--- /dev/null
+++ b/lib/fs/node.js
@@ -0,0 +1,66 @@
+var _ = require('lodash');
+var util = require('util');
+var path = require('path');
+
+var fs = require('../utils/fs');
+var Promise = require('../utils/promise');
+var BaseFS = require('./');
+
+function NodeFS() {
+    BaseFS.call(this);
+}
+util.inherits(NodeFS, BaseFS);
+
+// Check if a file exists, run a Promise(true) if that's the case, Promise(false) otherwise
+NodeFS.prototype.exists = function(filename) {
+    return fs.exists(filename);
+};
+
+// Read a file and returns a promise with the content as a buffer
+NodeFS.prototype.read = function(filename) {
+    return fs.readFile(filename);
+};
+
+// Read stat infos about a file
+NodeFS.prototype.stat = function(filename) {
+    return fs.stat(filename);
+};
+
+// List files in a directory
+NodeFS.prototype.readdir = function(folder) {
+    return fs.readdir(folder)
+    .then(function(files) {
+        return _.chain(files)
+            .map(function(file) {
+                if (file == '.' || file == '..') return;
+
+                var stat = fs.statSync(path.join(folder, file));
+                if (stat.isDirectory()) file = file + path.sep;
+                return file;
+            })
+            .compact()
+            .value();
+    });
+};
+
+// Load a JSON/JS file
+NodeFS.prototype.loadAsObject = function(filename) {
+    return Promise()
+    .then(function() {
+        var jsFile;
+
+        try {
+            jsFile = require.resolve(filename);
+
+            // Invalidate node.js cache for livreloading
+            delete require.cache[jsFile];
+
+            return require(jsFile);
+        }
+        catch(err) {
+            return Promise.reject(err);
+        }
+    });
+};
+
+module.exports = NodeFS;
diff --git a/lib/generator.js b/lib/generator.js
deleted file mode 100644
index 4e280d8..0000000
--- a/lib/generator.js
+++ /dev/null
@@ -1,76 +0,0 @@
-var _ = require('lodash');
-var path = require('path');
-var Q = require('q');
-var fs = require('./utils/fs');
-
-var BaseGenerator = function(book) {
-    this.book = book;
-
-    Object.defineProperty(this, 'options', {
-        get: function () {
-            return this.book.options;
-        }
-    });
-
-    _.bindAll(this);
-};
-
-BaseGenerator.prototype.callHook = function(name, data) {
-    return this.book.callHook(name, data);
-};
-
-// Prepare the genertor
-BaseGenerator.prototype.prepare = function() {
-    var that = this;
-
-    return that.callHook('init');
-};
-
-// Write a parsed file to the output
-BaseGenerator.prototype.convertFile = function(input) {
-    return Q.reject(new Error('Could not convert '+input));
-};
-
-// Copy file to the output (non parsable)
-BaseGenerator.prototype.transferFile = function(input) {
-    return fs.copy(
-        this.book.resolve(input),
-        path.join(this.options.output, input)
-    );
-};
-
-// Copy a folder to the output
-BaseGenerator.prototype.transferFolder = function(input) {
-    return fs.mkdirp(
-        path.join(this.book.options.output, input)
-    );
-};
-
-// Copy the cover picture
-BaseGenerator.prototype.copyCover = function() {
-    var that = this;
-
-    return Q.all([
-        fs.copy(that.book.resolve('cover.jpg'), path.join(that.options.output, 'cover.jpg')),
-        fs.copy(that.book.resolve('cover_small.jpg'), path.join(that.options.output, 'cover_small.jpg'))
-    ])
-    .fail(function() {
-        // If orignaly from multi-lang, try copy from parent
-        if (!that.book.isSubBook()) return;
-
-        return Q.all([
-            fs.copy(path.join(that.book.parentRoot(), 'cover.jpg'), path.join(that.options.output, 'cover.jpg')),
-            fs.copy(path.join(that.book.parentRoot(), 'cover_small.jpg'), path.join(that.options.output, 'cover_small.jpg'))
-        ]);
-    })
-    .fail(function() {
-        return Q();
-    });
-};
-
-// At teh end of the generation
-BaseGenerator.prototype.finish = function() {
-    return Q.reject(new Error('Could not finish generation'));
-};
-
-module.exports = BaseGenerator;
diff --git a/lib/generators/ebook.js b/lib/generators/ebook.js
deleted file mode 100644
index ff804c6..0000000
--- a/lib/generators/ebook.js
+++ /dev/null
@@ -1,172 +0,0 @@
-var util = require('util');
-var path = require('path');
-var Q = require('q');
-var _ = require('lodash');
-var juice = require('juice');
-var exec = require('child_process').exec;
-
-var fs = require('../utils/fs');
-var stringUtils = require('../utils/string');
-var BaseGenerator = require('./website');
-
-var Generator = function(book, format) {
-    BaseGenerator.apply(this, arguments);
-
-    // eBook format
-    this.ebookFormat = format;
-
-    // Resources namespace
-    this.namespace = 'ebook';
-
-    // Styles to use
-    this.styles = _.compact(['print', 'ebook', this.ebookFormat]);
-
-    // Convert images (svg -> png)
-    this.convertImages = true;
-};
-util.inherits(Generator, BaseGenerator);
-
-Generator.prototype.prepareTemplates = function() {
-    this.templates.page = this.book.plugins.template('ebook:page') || path.resolve(this.options.theme, 'templates/ebook/page.html');
-    this.templates.summary = this.book.plugins.template('ebook:summary') || path.resolve(this.options.theme, 'templates/ebook/summary.html');
-    this.templates.glossary = this.book.plugins.template('ebook:glossary') || path.resolve(this.options.theme, 'templates/ebook/glossary.html');
-
-    return Q();
-};
-
-// Generate table of contents
-Generator.prototype.writeSummary = function() {
-    var that = this;
-
-    that.book.log.info.ln('write SUMMARY.html');
-    return this._writeTemplate(this.templates.summary, {}, path.join(this.options.output, 'SUMMARY.html'));
-};
-
-// Return template for footer/header with inlined css
-Generator.prototype.getPDFTemplate = function(id) {
-    var tpl = this.options.pdf[id+'Template'];
-    var defaultTpl = path.resolve(this.options.theme, 'templates/ebook/'+id+'.html');
-    var defaultCSS = path.resolve(this.options.theme, 'assets/ebook/pdf.css');
-
-    // Default template from theme
-    if (!tpl && fs.existsSync(defaultTpl)) {
-        tpl = fs.readFileSync(defaultTpl, { encoding: 'utf-8' });
-    }
-
-    // Inline CSS using juice
-    var stylesheets = [];
-
-    // From theme
-    if (fs.existsSync(defaultCSS)) {
-        stylesheets.push(fs.readFileSync(defaultCSS, { encoding: 'utf-8' }));
-    }
-
-    // Custom PDF style
-    if (this.styles.pdf) {
-        stylesheets.push(fs.readFileSync(this.book.resolveOutput(this.styles.pdf), { encoding: 'utf-8' }));
-    }
-
-    tpl = juice(tpl, {
-        extraCss: stylesheets.join('\n\n')
-    });
-
-    return tpl;
-};
-
-Generator.prototype.finish = function() {
-    var that = this;
-
-    return Q()
-    .then(this.copyAssets)
-    .then(this.copyCover)
-    .then(this.writeGlossary)
-    .then(this.writeSummary)
-    .then(function() {
-        if (!that.ebookFormat) return Q();
-
-        if (!that.options.cover && fs.existsSync(path.join(that.options.output, 'cover.jpg'))) {
-            that.options.cover = path.join(that.options.output, 'cover.jpg');
-        }
-
-        var d = Q.defer();
-
-        var _options = {
-            '--cover': that.options.cover,
-            '--title': that.options.title,
-            '--comments': that.options.description,
-            '--isbn': that.options.isbn,
-            '--authors': that.options.author,
-            '--language': that.options.language,
-            '--book-producer': 'GitBook',
-            '--publisher': 'GitBook',
-            '--chapter': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter \')]',
-            '--level1-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-1 \')]',
-            '--level2-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-2 \')]',
-            '--level3-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-3 \')]',
-            '--no-chapters-in-toc': true,
-            '--max-levels': '1',
-            '--breadth-first': true
-        };
-
-        if (that.ebookFormat == 'pdf') {
-            var pdfOptions = that.options.pdf;
-
-            _.extend(_options, {
-                '--chapter-mark': String(pdfOptions.chapterMark),
-                '--page-breaks-before': String(pdfOptions.pageBreaksBefore),
-                '--margin-left': String(pdfOptions.margin.left),
-                '--margin-right': String(pdfOptions.margin.right),
-                '--margin-top': String(pdfOptions.margin.top),
-                '--margin-bottom': String(pdfOptions.margin.bottom),
-                '--pdf-default-font-size': String(pdfOptions.fontSize),
-                '--pdf-mono-font-size': String(pdfOptions.fontSize),
-                '--paper-size': String(pdfOptions.paperSize),
-                '--pdf-page-numbers': Boolean(pdfOptions.pageNumbers),
-                '--pdf-header-template': that.getPDFTemplate('header'),
-                '--pdf-footer-template': that.getPDFTemplate('footer'),
-                '--pdf-sans-family': String(pdfOptions.fontFamily)
-            });
-        } else if (that.ebookFormat == 'epub') {
-            _.extend(_options, {
-                '--dont-split-on-page-breaks': true
-            });
-        }
-
-        var command = [
-            'ebook-convert',
-            path.join(that.options.output, 'SUMMARY.html'),
-            path.join(that.options.output, 'index.'+that.ebookFormat),
-            stringUtils.optionsToShellArgs(_options)
-        ].join(' ');
-
-        that.book.log.info('start conversion to', that.ebookFormat, '....');
-
-        var child = exec(command, function (error, stdout) {
-            if (error) {
-                that.book.log.info.fail();
-
-                if (error.code == 127) {
-                    error.message = 'Need to install ebook-convert from Calibre';
-                } else {
-                    error.message = error.message + ' '+stdout;
-                }
-                return d.reject(error);
-            }
-
-            that.book.log.info.ok();
-            d.resolve();
-        });
-
-        child.stdout.on('data', function (data) {
-            that.book.log.debug(data);
-        });
-
-        child.stderr.on('data', function (data) {
-            that.book.log.debug(data);
-        });
-
-        return d.promise;
-    });
-};
-
-module.exports = Generator;
diff --git a/lib/generators/index.js b/lib/generators/index.js
deleted file mode 100644
index 068d0d9..0000000
--- a/lib/generators/index.js
+++ /dev/null
@@ -1,11 +0,0 @@
-var _ = require("lodash");
-var EbookGenerator = require("./ebook");
-
-module.exports = {
-    json: require("./json"),
-    website: require("./website"),
-    ebook: EbookGenerator,
-    pdf: _.partialRight(EbookGenerator, "pdf"),
-    mobi: _.partialRight(EbookGenerator, "mobi"),
-    epub: _.partialRight(EbookGenerator, "epub")
-};
diff --git a/lib/generators/json.js b/lib/generators/json.js
deleted file mode 100644
index 37ffa0b..0000000
--- a/lib/generators/json.js
+++ /dev/null
@@ -1,76 +0,0 @@
-var util = require('util');
-var path = require('path');
-var Q = require('q');
-var _ = require('lodash');
-
-var fs = require('../utils/fs');
-var BaseGenerator = require('../generator');
-var links = require('../utils/links');
-
-var Generator = function() {
-    BaseGenerator.apply(this, arguments);
-};
-util.inherits(Generator, BaseGenerator);
-
-// Ignore some methods
-Generator.prototype.transferFile = function() { };
-
-// Convert an input file
-Generator.prototype.convertFile = function(input) {
-    var that = this;
-
-    return that.book.parsePage(input)
-    .then(function(page) {
-        var json = {
-            progress: page.progress,
-            sections: page.sections
-        };
-
-        var output = links.changeExtension(page.path, '.json');
-        output = path.join(that.options.output, output);
-
-        return fs.writeFile(
-            output,
-            JSON.stringify(json, null, 4)
-        );
-    });
-};
-
-// Finish generation
-Generator.prototype.finish = function() {
-    return this.writeReadme();
-};
-
-// Write README.json
-Generator.prototype.writeReadme = function() {
-    var that = this;
-    var mainLang, langs, readme;
-
-    return Q()
-    .then(function() {
-        langs = that.book.langs;
-        mainLang = langs.length > 0? _.first(langs).lang : null;
-
-        readme = links.changeExtension(that.book.readmeFile, '.json');
-
-        // Read readme from main language
-        return fs.readFile(
-            mainLang? path.join(that.options.output, mainLang, readme) : path.join(that.options.output, readme)
-        );
-    })
-    .then(function(content) {
-        // Extend it with infos about the languages
-        var json = JSON.parse(content);
-        _.extend(json, {
-            langs: langs
-        });
-
-        // Write it as README.json
-        return fs.writeFile(
-            path.join(that.options.output, 'README.json'),
-            JSON.stringify(json, null, 4)
-        );
-    });
-};
-
-module.exports = Generator;
diff --git a/lib/generators/website.js b/lib/generators/website.js
deleted file mode 100644
index efb7c0f..0000000
--- a/lib/generators/website.js
+++ /dev/null
@@ -1,268 +0,0 @@
-var util = require('util');
-var path = require('path');
-var Q = require('q');
-var _ = require('lodash');
-
-var nunjucks = require('nunjucks');
-var AutoEscapeExtension = require('nunjucks-autoescape')(nunjucks);
-var FilterExtension = require('nunjucks-filter')(nunjucks);
-
-var fs = require('../utils/fs');
-var BaseGenerator = require('../generator');
-var links = require('../utils/links');
-var i18n = require('../utils/i18n');
-
-var pkg = require('../../package.json');
-
-var Generator = function() {
-    BaseGenerator.apply(this, arguments);
-
-    // Revision
-    this.revision = new Date();
-
-    // Resources namespace
-    this.namespace = 'website';
-
-    // Style to integrates in the output
-    this.styles = ['website'];
-
-    // Convert images (svg -> png)
-    this.convertImages = false;
-
-    // Templates
-    this.templates = {};
-};
-util.inherits(Generator, BaseGenerator);
-
-// Prepare the genertor
-Generator.prototype.prepare = function() {
-    return BaseGenerator.prototype.prepare.apply(this)
-    .then(this.prepareStyles)
-    .then(this.prepareTemplates)
-    .then(this.prepareTemplateEngine);
-};
-
-// Prepare all styles
-Generator.prototype.prepareStyles = function() {
-    var that = this;
-
-    this.styles = _.chain(this.styles)
-        .map(function(style) {
-            var stylePath = that.options.styles[style];
-            var styleExists = (
-                fs.existsSync(that.book.resolveOutput(stylePath)) ||
-                fs.existsSync(that.book.resolve(stylePath))
-            );
-
-            if (stylePath && styleExists) {
-                return [style, stylePath];
-            }
-            return null;
-        })
-        .compact()
-        .object()
-        .value();
-
-    return Q();
-};
-
-// Prepare templates
-Generator.prototype.prepareTemplates = function() {
-    this.templates.page = this.book.plugins.template('site:page') || path.resolve(this.options.theme, 'templates/website/page.html');
-    this.templates.langs = this.book.plugins.template('site:langs') || path.resolve(this.options.theme, 'templates/website/langs.html');
-    this.templates.glossary = this.book.plugins.template('site:glossary') || path.resolve(this.options.theme, 'templates/website/glossary.html');
-
-    return Q();
-};
-
-// Prepare template engine
-Generator.prototype.prepareTemplateEngine = function() {
-    var that = this;
-
-    return Q()
-    .then(function() {
-        var language = that.book.config.normalizeLanguage();
-
-        if (!i18n.hasLocale(language)) {
-            that.book.log.warn.ln('Language "'+language+'" is not available as a layout locales (en, '+i18n.getLocales().join(', ')+')');
-        }
-
-        var folders = _.chain(that.templates)
-            .values()
-            .map(path.dirname)
-            .uniq()
-            .value();
-
-        that.env = new nunjucks.Environment(
-            new nunjucks.FileSystemLoader(folders),
-            {
-                autoescape: true
-            }
-        );
-
-        // Add filter
-        that.env.addFilter('contentLink', that.book.contentLink.bind(that.book));
-        that.env.addFilter('lvl', function(lvl) {
-            return lvl.split('.').length;
-        });
-
-        // Add extension
-        that.env.addExtension('AutoEscapeExtension', new AutoEscapeExtension(that.env));
-        that.env.addExtension('FilterExtension', new FilterExtension(that.env));
-    });
-};
-
-// Finis generation
-Generator.prototype.finish = function() {
-    return this.copyAssets()
-    .then(this.copyCover)
-    .then(this.writeGlossary)
-    .then(this.writeLangsIndex);
-};
-
-// Convert an input file
-Generator.prototype.convertFile = function(input) {
-    var that = this;
-
-    return that.book.parsePage(input, {
-        convertImages: that.convertImages,
-        interpolateTemplate: function(page) {
-            return that.callHook('page:before', page);
-        },
-        interpolateContent: function(page) {
-            return that.callHook('page', page);
-        }
-    })
-    .then(function(page) {
-        var relativeOutput = that.book.contentPath(page.path);
-        var output = path.join(that.options.output, relativeOutput);
-
-        var basePath = path.relative(path.dirname(output), that.options.output) || '.';
-        if (process.platform === 'win32') basePath = basePath.replace(/\\/g, '/');
-
-        that.book.log.debug.ln('write parsed file', page.path, 'to', relativeOutput);
-
-        return that._writeTemplate(that.templates.page, {
-            progress: page.progress,
-
-            _input: page.path,
-            content: page.sections,
-
-            basePath: basePath,
-            staticBase: links.join(basePath, 'gitbook')
-        }, output);
-    });
-};
-
-// Write the index for langs
-Generator.prototype.writeLangsIndex = function() {
-    if (!this.book.langs.length) return Q();
-
-    return this._writeTemplate(this.templates.langs, {
-        langs: this.book.langs
-    }, path.join(this.options.output, 'index.html'));
-};
-
-// Write glossary
-Generator.prototype.writeGlossary = function() {
-    // No glossary
-    if (this.book.glossary.length === 0) return Q();
-
-    return this._writeTemplate(this.templates.glossary, {}, path.join(this.options.output, 'GLOSSARY.html'));
-};
-
-// Convert a page into a normalized data set
-Generator.prototype.normalizePage  = function(page) {
-    var that = this;
-
-    var _callHook = function(name) {
-        return that.callHook(name, page)
-        .then(function(_page) {
-            page = _page;
-            return page;
-        });
-    };
-
-    return Q()
-    .then(function() {
-        return _callHook('page');
-    })
-    .then(function() {
-        return page;
-    });
-};
-
-// Generate a template
-Generator.prototype._writeTemplate = function(tpl, options, output, interpolate) {
-    var that = this;
-
-    interpolate = interpolate || _.identity;
-    return Q()
-    .then(function() {
-        return that.env.render(
-            tpl,
-            _.extend({
-                gitbook: {
-                    version: pkg.version
-                },
-
-                styles: that.styles,
-
-                revision: that.revision,
-
-                title: that.options.title,
-                description: that.options.description,
-                language: that.book.config.normalizeLanguage(),
-                innerlanguage: that.book.isSubBook()? that.book.config.get('language') : null,
-
-                glossary: that.book.glossary,
-
-                summary: that.book.summary,
-                allNavigation: that.book.navigation,
-
-                plugins: {
-                    resources: that.book.plugins.resources(that.namespace)
-                },
-                pluginsConfig: JSON.stringify(that.options.pluginsConfig),
-                htmlSnippet: _.partial(_.partialRight(that.book.plugins.html, that, options), that.namespace),
-
-                options: that.options,
-
-                basePath: '.',
-                staticBase: path.join('.', 'gitbook'),
-
-                '__': that.book.i18n.bind(that.book)
-            }, options)
-        );
-    })
-    .then(interpolate)
-    .then(function(html) {
-        return fs.writeFile(
-            output,
-            html
-        );
-    });
-};
-
-// Copy assets
-Generator.prototype.copyAssets = function() {
-    var that = this;
-
-    // Copy gitbook assets
-    return fs.copy(
-        path.join(that.options.theme, 'assets/'+this.namespace),
-        path.join(that.options.output, 'gitbook')
-    )
-
-    // Copy plugins assets
-    .then(function() {
-        return Q.all(
-            _.map(that.book.plugins.list, function(plugin) {
-                var pluginAssets = path.join(that.options.output, 'gitbook/plugins/', plugin.name);
-                return plugin.copyAssets(pluginAssets, that.namespace);
-            })
-        );
-    });
-};
-
-module.exports = Generator;
diff --git a/lib/version.js b/lib/gitbook.js
index f0ae187..54513c1 100644
--- a/lib/version.js
+++ b/lib/gitbook.js
@@ -4,7 +4,9 @@ var pkg = require('../package.json');
 var VERSION = pkg.version;
 var VERSION_STABLE = VERSION.replace(/\-(\S+)/g, '');
 
-// Test if current current gitbook version satisfies a condition
+var START_TIME = new Date();
+
+// Verify that this gitbook version satisfies a requirement
 // We can't directly use samver.satisfies since it will break all plugins when gitbook version is a prerelease (beta, alpha)
 function satisfies(condition) {
     // Test with real version
@@ -14,6 +16,18 @@ function satisfies(condition) {
     return semver.satisfies(VERSION_STABLE, condition);
 }
 
+// Return templating/json context for gitbook itself
+function getContext() {
+    return {
+        gitbook: {
+            version: pkg.version,
+            time: START_TIME
+        }
+    };
+}
+
 module.exports = {
-    satisfies: satisfies
+    version: pkg.version,
+    satisfies: satisfies,
+    getContext: getContext
 };
diff --git a/lib/index.js b/lib/index.js
index a23ec3f..fdad6ee 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,215 +1,7 @@
-/* eslint no-console: 0 */
-
-var Q = require('q');
-var _ = require('lodash');
-var path = require('path');
-var tinylr = require('tiny-lr');
-var color = require('bash-color');
-
 var Book = require('./book');
-var initBook = require('./init');
-var Server = require('./utils/server');
-var stringUtils = require('./utils/string');
-var watch = require('./utils/watch');
-var logger = require('./utils/logger');
-
-var LOG_OPTION = {
-    name: 'log',
-    description: 'Minimum log level to display',
-    values: _.chain(logger.LEVELS).keys().map(stringUtils.toLowerCase).value(),
-    defaults: 'info'
-};
-
-var FORMAT_OPTION = {
-    name: 'format',
-    description: 'Format to build to',
-    values: ['website', 'json', 'ebook'],
-    defaults: 'website'
-};
-
-// Export init to gitbook library
-Book.init = initBook;
+var cli = require('./cli');
 
 module.exports = {
     Book: Book,
-    LOG_LEVELS: logger.LEVELS,
-
-    commands: _.flatten([
-        {
-            name: 'build [book] [output]',
-            description: 'build a book',
-            options: [
-                FORMAT_OPTION,
-                LOG_OPTION
-            ],
-            exec: function(args, kwargs) {
-                var input = args[0] || process.cwd();
-                var output = args[1] || path.join(input, '_book');
-
-                var book = new Book(input, _.extend({}, {
-                    'config': {
-                        'output': output
-                    },
-                    'logLevel': kwargs.log
-                }));
-
-                return book.parse()
-                .then(function() {
-                    return book.generate(kwargs.format);
-                })
-                .then(function(){
-                    console.log('');
-                    console.log(color.green('Done, without error'));
-                });
-            }
-        },
-
-        _.map(['pdf', 'epub', 'mobi'], function(ebookType) {
-            return {
-                name: ebookType+' [book] [output]',
-                description: 'build a book to '+ebookType,
-                options: [
-                    LOG_OPTION
-                ],
-                exec: function(args, kwargs) {
-                    var input = args[0] || process.cwd();
-                    var output = args[1];
-
-                    var book = new Book(input, _.extend({}, {
-                        'logLevel': kwargs.log
-                    }));
-
-                    return book.parse()
-                    .then(function() {
-                        return book.generateFile(output, {
-                            ebookFormat: ebookType
-                        });
-                    })
-                    .then(function(){
-                        console.log('');
-                        console.log(color.green('Done, without error'));
-                    });
-                }
-            };
-        }),
-
-        {
-            name: 'serve [book]',
-            description: 'Build then serve a gitbook from a directory',
-            options: [
-                {
-                    name: 'port',
-                    description: 'Port for server to listen on',
-                    defaults: 4000
-                },
-                {
-                    name: 'lrport',
-                    description: 'Port for livereload server to listen on',
-                    defaults: 35729
-                },
-                {
-                    name: 'watch',
-                    description: 'Enable/disable file watcher',
-                    defaults: true
-                },
-                FORMAT_OPTION,
-                LOG_OPTION
-            ],
-            exec: function(args, kwargs) {
-                var input = args[0] || process.cwd();
-                var server = new Server();
-
-                // Init livereload server
-                var lrServer = tinylr({});
-                var lrPath;
-
-                var generate = function() {
-                    if (server.isRunning()) console.log('Stopping server');
-
-                    return server.stop()
-                    .then(function() {
-                        var book = new Book(input, _.extend({}, {
-                            'config': {
-                                'defaultsPlugins': ['livereload']
-                            },
-                            'logLevel': kwargs.log
-                        }));
-
-                        return book.parse()
-                        .then(function() {
-                            return book.generate(kwargs.format);
-                        })
-                        .thenResolve(book);
-                    })
-                    .then(function(book) {
-                        console.log();
-                        console.log('Starting server ...');
-                        return server.start(book.options.output, kwargs.port)
-                        .then(function() {
-                            console.log('Serving book on http://localhost:'+kwargs.port);
-
-                            if (lrPath) {
-                                // trigger livereload
-                                lrServer.changed({
-                                    body: {
-                                        files: [lrPath]
-                                    }
-                                });
-                            }
-
-                            if (!kwargs.watch) return;
-
-                            return watch(book.root)
-                            .then(function(filepath) {
-                                // set livereload path
-                                lrPath = filepath;
-                                console.log('Restart after change in file', filepath);
-                                console.log('');
-                                return generate();
-                            });
-                        });
-                    });
-                };
-
-                return Q.nfcall(lrServer.listen.bind(lrServer), kwargs.lrport)
-                .then(function() {
-                    console.log('Live reload server started on port:', kwargs.lrport);
-                    console.log('Press CTRL+C to quit ...');
-                    console.log('');
-                    return generate();
-                });
-            }
-        },
-
-        {
-            name: 'install [book]',
-            description: 'install plugins dependencies',
-            exec: function(args) {
-                var input = args[0] || process.cwd();
-
-                var book = new Book(input);
-
-                return book.config.load()
-                .then(function() {
-                    return book.plugins.install();
-                })
-                .then(function(){
-                    console.log('');
-                    console.log(color.green('Done, without error'));
-                });
-            }
-        },
-
-        {
-            name: 'init [directory]',
-            description: 'create files and folders based on contents of SUMMARY.md',
-            exec: function(args) {
-                return initBook(args[0] || process.cwd())
-                .then(function(){
-                    console.log('');
-                    console.log(color.green('Done, without error'));
-                });
-            }
-        }
-    ])
+    commands: cli.commands
 };
diff --git a/lib/init.js b/lib/init.js
deleted file mode 100644
index 2fc8016..0000000
--- a/lib/init.js
+++ /dev/null
@@ -1,83 +0,0 @@
-var _ = require('lodash');
-var Q = require('q');
-var path = require('path');
-
-var Book = require('./book');
-var fs = require('./utils/fs');
-
-// Initialize folder structure for a book
-// Read SUMMARY to created the right chapter
-function initBook(root, opts) {
-    var book = new Book(root, opts);
-    var extensionToUse = '.md';
-
-    var chaptersPaths = function(chapters) {
-        return _.reduce(chapters || [], function(accu, chapter) {
-            var o = {
-                title: chapter.title
-            };
-            if (chapter.path) o.path = chapter.path;
-
-            return accu.concat(
-                [o].concat(chaptersPaths(chapter.articles))
-            );
-        }, []);
-    };
-
-    book.log.info.ln('init book at', root);
-    return fs.mkdirp(root)
-    .then(function() {
-        book.log.info.ln('detect structure from SUMMARY (if it exists)');
-        return book.parseSummary();
-    })
-    .fail(function() {
-        return Q();
-    })
-    .then(function() {
-        var summary = book.summaryFile || 'SUMMARY.md';
-        var chapters = book.summary.chapters || [];
-        extensionToUse = path.extname(summary);
-
-        if (chapters.length === 0) {
-            chapters = [
-                {
-                    title: 'Summary',
-                    path: 'SUMMARY'+extensionToUse
-                },
-                {
-                    title: 'Introduction',
-                    path: 'README'+extensionToUse
-                }
-            ];
-        }
-
-        return Q(chaptersPaths(chapters));
-    })
-    .then(function(chapters) {
-        // Create files that don't exist
-        return Q.all(_.map(chapters, function(chapter) {
-            if (!chapter.path) return Q();
-            var absolutePath = path.resolve(book.root, chapter.path);
-
-            return fs.exists(absolutePath)
-            .then(function(exists) {
-                if(exists) {
-                    book.log.info.ln('found', chapter.path);
-                    return;
-                } else {
-                    book.log.info.ln('create', chapter.path);
-                }
-
-                return fs.mkdirp(path.dirname(absolutePath))
-                .then(function() {
-                    return fs.writeFile(absolutePath, '# '+chapter.title+'\n');
-                });
-            });
-        }));
-    })
-    .then(function() {
-        book.log.info.ln('initialization is finished');
-    });
-}
-
-module.exports = initBook;
diff --git a/lib/output/assets-inliner.js b/lib/output/assets-inliner.js
new file mode 100644
index 0000000..6f1f02d
--- /dev/null
+++ b/lib/output/assets-inliner.js
@@ -0,0 +1,140 @@
+var util = require('util');
+var path = require('path');
+var crc = require('crc');
+
+var FolderOutput = require('./folder')();
+var Promise = require('../utils/promise');
+var fs = require('../utils/fs');
+var imagesUtil = require('../utils/images');
+var location = require('../utils/location');
+
+var DEFAULT_ASSETS_FOLDER = 'assets';
+
+/*
+Mixin to inline all the assets in a book:
+    - Outline <svg> tags
+    - Download remote images
+    - Convert .svg images as png
+*/
+
+module.exports = function assetsInliner(Base) {
+    Base = Base || FolderOutput;
+
+    function AssetsInliner() {
+        Base.apply(this, arguments);
+
+        // Map of svg already converted
+        this.svgs = {};
+        this.inlineSvgs = {};
+
+        // Map of images already downloaded
+        this.downloaded = {};
+    }
+    util.inherits(AssetsInliner, Base);
+
+    // Output a SVG buffer as a file
+    AssetsInliner.prototype.onOutputSVG = function(page, svg) {
+        this.log.debug.ln('output svg from', page.path);
+
+        // Convert svg buffer to a png file
+        return this.convertSVGBuffer(svg)
+
+            // Return relative path from the page
+            .then(function(filename) {
+                return page.relative('/' + filename);
+            });
+    };
+
+
+    // Output an image as a file
+    AssetsInliner.prototype.onOutputImage = function(page, src) {
+        var that = this;
+
+        return Promise()
+
+        // Download file if external
+        .then(function() {
+            if (!location.isExternal(src)) return;
+
+            return that.downloadAsset(src)
+            .then(function(_asset) {
+                src = '/' + _asset;
+            });
+
+        })
+        .then(function() {
+            // Resolve src to a relative filepath to the book's root
+            src = page.resolveLocal(src);
+
+            // Already a PNG/JPG/.. ?
+            if (path.extname(src).toLowerCase() != '.svg') {
+                return src;
+            }
+
+            // Convert SVG to PNG
+            return that.convertSVGFile(that.resolve(src));
+        })
+
+        // Return relative path from the page
+        .then(function(filename) {
+            return page.relative(filename);
+        });
+    };
+
+    // Download an asset if not already download; returns the output file
+    AssetsInliner.prototype.downloadAsset = function(src) {
+        if (this.downloaded[src]) return Promise(this.downloaded[src]);
+
+        var that = this;
+        var ext = path.extname(src);
+        var hash = crc.crc32(src).toString(16);
+
+        // Create new file
+        return this.createNewFile(DEFAULT_ASSETS_FOLDER, hash + ext)
+        .then(function(filename) {
+            that.downloaded[src] = filename;
+
+            that.log.debug.ln('downloading asset', src);
+            return fs.download(src, that.resolve(filename))
+            .thenResolve(filename);
+        });
+    };
+
+    // Convert a .svg into an .png
+    // Return the output filename for the .png
+    AssetsInliner.prototype.convertSVGFile = function(src) {
+        if (this.svgs[src]) return Promise(this.svgs[src]);
+
+        var that = this;
+        var hash = crc.crc32(src).toString(16);
+
+        // Create new file
+        return this.createNewFile(DEFAULT_ASSETS_FOLDER, hash + '.png')
+        .then(function(filename) {
+            that.svgs[src] = filename;
+
+            return imagesUtil.convertSVGToPNG(src, that.resolve(filename))
+            .thenResolve(filename);
+        });
+    };
+
+    // Convert an inline svg into an .png
+    // Return the output filename for the .png
+    AssetsInliner.prototype.convertSVGBuffer = function(buf) {
+        var that = this;
+        var hash = crc.crc32(buf).toString(16);
+
+        // Already converted?
+        if (this.inlineSvgs[hash]) return Promise(this.inlineSvgs[hash]);
+
+        return this.createNewFile(DEFAULT_ASSETS_FOLDER, hash + '.png')
+        .then(function(filename) {
+            that.inlineSvgs[hash] = filename;
+
+            return imagesUtil.convertSVGBufferToPNG(buf, that.resolve(filename))
+            .thenResolve(filename);
+        });
+    };
+
+    return AssetsInliner;
+};
diff --git a/lib/output/base.js b/lib/output/base.js
new file mode 100644
index 0000000..a1d8804
--- /dev/null
+++ b/lib/output/base.js
@@ -0,0 +1,274 @@
+var _ = require('lodash');
+var Ignore = require('ignore');
+var path = require('path');
+
+var Promise = require('../utils/promise');
+var pathUtil = require('../utils/path');
+var location = require('../utils/location');
+var PluginsManager = require('../plugins');
+var TemplateEngine = require('../template');
+
+/*
+Output is like a stream interface for a parsed book
+to output "something".
+
+The process is mostly on the behavior of "onPage" and "onAsset"
+*/
+
+function Output(book, opts, parent) {
+    _.bindAll(this);
+    this.parent = parent;
+
+    this.opts = _.defaults({}, opts || {}, {
+        directoryIndex: true
+    });
+
+    this.book = book;
+    this.log = this.book.log;
+
+    // Create plugins manager
+    this.plugins = new PluginsManager(this.book);
+
+    // Create template engine
+    this.template = new TemplateEngine(this);
+
+    // Files to ignore in output
+    this.ignore = Ignore();
+}
+
+// Default extension for output
+Output.prototype.defaultExtension = '.html';
+
+// Start the generation, for a parsed book
+Output.prototype.generate = function() {
+    var that = this;
+    var isMultilingual = this.book.isMultilingual();
+
+    return Promise()
+
+    // Load all plugins
+    .then(function() {
+        return that.plugins.loadAll()
+        .then(function() {
+            that.template.addFilters(that.plugins.getFilters());
+            that.template.addBlocks(that.plugins.getBlocks());
+        });
+    })
+
+    // Transform the configuration
+    .then(function() {
+        return that.plugins.hook('config', that.book.config.dump())
+        .then(function(cfg) {
+            that.book.config.replace(cfg);
+        });
+    })
+
+    // Initialize the generation
+    .then(function() {
+        return that.plugins.hook('init');
+    })
+    .then(function() {
+        that.log.info.ln('preparing the generation');
+        return that.prepare();
+    })
+
+    // Process all files
+    .then(function() {
+        that.log.debug.ln('listing files');
+        return that.book.fs.listAllFiles(that.book.root);
+    })
+
+    // We want to process assets first, then pages
+    // Since pages can have logic based on existance of assets
+    .then(function(files) {
+        // Split into pages/assets
+        var byTypes = _.chain(files)
+            .filter(that.ignore.createFilter())
+
+            // Ignore file present in a language book
+            .filter(function(filename) {
+                return !(isMultilingual && that.book.isInLanguageBook(filename));
+            })
+
+            .groupBy(function(filename) {
+                return (that.book.hasPage(filename)? 'page' : 'asset');
+            })
+
+            .value();
+
+        return Promise.serie(byTypes.asset, function(filename) {
+            that.log.debug.ln('copy asset', filename);
+            return that.onAsset(filename);
+        })
+        .then(function() {
+            return Promise.serie(byTypes.page, function(filename) {
+                that.log.debug.ln('process page', filename);
+                return that.onPage(that.book.getPage(filename));
+            });
+        });
+    })
+
+    // Generate sub-books
+    .then(function() {
+        if (!that.book.isMultilingual()) return;
+
+        return Promise.serie(that.book.books, function(subbook) {
+            that.log.info.ln('');
+            that.log.info.ln('start generation of language "' + path.relative(that.book.root, subbook.root) + '"');
+
+            var out = that.onLanguageBook(subbook);
+            return out.generate();
+        });
+    })
+
+    // Finish the generation
+    .then(function() {
+        return that.plugins.hook('finish:before');
+    })
+    .then(function() {
+        that.log.debug.ln('finishing the generation');
+        return that.finish();
+    })
+    .then(function() {
+        return that.plugins.hook('finish');
+    })
+
+    .then(function() {
+        if (!that.book.isLanguageBook()) that.log.info.ln('');
+        that.log.info.ok('generation finished with success!');
+    });
+};
+
+// Prepare the generation
+Output.prototype.prepare = function() {
+    this.ignore.addPattern(_.compact([
+        '.gitignore',
+        '.ignore',
+        '.bookignore',
+        'node_modules',
+
+        // The configuration file should not be copied in the output
+        this.book.config.path,
+
+        // Structure file to ignore
+        this.book.summary.path,
+        this.book.langs.path
+    ]));
+};
+
+// Write a page (parsable file), ex: markdown, etc
+Output.prototype.onPage = function(page) {
+    return page.toHTML(this);
+};
+
+// Copy an asset file (non-parsable), ex: images, etc
+Output.prototype.onAsset = function(filename) {
+
+};
+
+// Finish the generation
+Output.prototype.finish = function() {
+
+};
+
+// Resolve an HTML link
+Output.prototype.onRelativeLink = function(currentPage, href) {
+    var to = currentPage.followPage(href);
+
+    // Replace by an .html link
+    if (to) {
+        href = to.path;
+
+        // Recalcul as relative link
+        href = currentPage.relative(href);
+
+        // Replace .md by .html
+        href = this.outputUrl(href);
+    }
+
+    return href;
+};
+
+// Output a SVG buffer as a file
+Output.prototype.onOutputSVG = function(page, svg) {
+    return null;
+};
+
+// Output an image as a file
+// Normalize the relative link
+Output.prototype.onOutputImage = function(page, imgFile) {
+    imgFile = page.resolveLocal(imgFile);
+    return page.relative(imgFile);
+};
+
+// Read a template by its source URL
+Output.prototype.onGetTemplate = function(sourceUrl) {
+    throw new Error('template not found '+sourceUrl);
+};
+
+// Generate a source URL for a template
+Output.prototype.onResolveTemplate = function(from, to) {
+    return path.resolve(path.dirname(from), to);
+};
+
+// Prepare output for a language book
+Output.prototype.onLanguageBook = function(book) {
+    return new this.constructor(book, this.opts, this);
+};
+
+
+// ---- Utilities ----
+
+// Return a default context for templates
+Output.prototype.getContext = function() {
+    return _.extend(
+        {},
+        this.book.getContext(),
+        this.book.langs.getContext(),
+        this.book.summary.getContext(),
+        this.book.glossary.getContext(),
+        this.book.config.getContext()
+    );
+};
+
+// Resolve a file path in the context of a specific page
+// Result is an "absolute path relative to the output folder"
+Output.prototype.resolveForPage = function(page, href) {
+    if (_.isString(page)) page = this.book.getPage(page);
+
+    href = page.relative(href);
+    return this.onRelativeLink(page, href);
+};
+
+// Filename for output
+// READMEs are replaced by index.html
+// /test/README.md -> /test/index.html
+Output.prototype.outputPath = function(filename, ext) {
+    ext = ext || this.defaultExtension;
+    var output = filename;
+
+    if (
+        path.basename(filename, path.extname(filename)) == 'README' ||
+        output == this.book.readme.path
+    ) {
+        output = path.join(path.dirname(output), 'index'+ext);
+    } else {
+        output = pathUtil.setExtension(output, ext);
+    }
+
+    return output;
+};
+
+// Filename for output
+// /test/index.html -> /test/
+Output.prototype.outputUrl = function(filename, ext) {
+    var href = this.outputPath(filename, ext);
+
+    if (path.basename(href) == 'index.html' && this.opts.directoryIndex) {
+        href = path.dirname(href) + '/';
+    }
+
+    return location.normalize(href);
+};
+
+module.exports = Output;
diff --git a/lib/output/conrefs.js b/lib/output/conrefs.js
new file mode 100644
index 0000000..e58f836
--- /dev/null
+++ b/lib/output/conrefs.js
@@ -0,0 +1,67 @@
+var path = require('path');
+var util = require('util');
+
+var folderOutput = require('./folder');
+var Git = require('../utils/git');
+var fs = require('../utils/fs');
+var pathUtil = require('../utils/path');
+var location = require('../utils/location');
+
+/*
+Mixin for output to resolve git conrefs
+*/
+
+module.exports = function conrefsLoader(Base) {
+    Base = folderOutput(Base);
+
+    function ConrefsLoader() {
+        Base.apply(this, arguments);
+
+        this.git = new Git();
+    }
+    util.inherits(ConrefsLoader, Base);
+
+    // Read a template by its source URL
+    ConrefsLoader.prototype.onGetTemplate = function(sourceURL) {
+        var that = this;
+
+        return this.git.resolve(sourceURL)
+        .then(function(filepath) {
+            // Is local file
+            if (!filepath) {
+                filepath = that.book.resolve(sourceURL);
+            } else {
+                that.book.log.debug.ln('resolve from git', sourceURL, 'to', filepath);
+            }
+
+            //  Read file from absolute path
+            return fs.readFile(filepath)
+            .then(function(source) {
+                return {
+                    src: source.toString('utf8'),
+                    path: filepath
+                };
+            });
+        });
+    };
+
+    // Generate a source URL for a template
+    ConrefsLoader.prototype.onResolveTemplate = function(from, to) {
+        // If origin is in the book, we enforce result file to be in the book
+        if (this.book.isInBook(from)) {
+            var href = location.toAbsolute(to, path.dirname(from), '');
+            return this.book.resolve(href);
+        }
+
+        // If origin is in a git repository, we resolve file in the git repository
+        var gitRoot = this.git.resolveRoot(from);
+        if (gitRoot) {
+            return pathUtil.resolveInRoot(gitRoot, to);
+        }
+
+        // If origin is not in the book (include from a git content ref)
+        return path.resolve(path.dirname(from), to);
+    };
+
+    return ConrefsLoader;
+};
diff --git a/lib/output/ebook.js b/lib/output/ebook.js
new file mode 100644
index 0000000..228a025
--- /dev/null
+++ b/lib/output/ebook.js
@@ -0,0 +1,190 @@
+var _ = require('lodash');
+var util = require('util');
+var juice = require('juice');
+
+var command = require('../utils/command');
+var fs = require('../utils/fs');
+var Promise = require('../utils/promise');
+var error = require('../utils/error');
+var WebsiteOutput = require('./website');
+var assetsInliner = require('./assets-inliner');
+
+function _EbookOutput() {
+    WebsiteOutput.apply(this, arguments);
+
+    // ebook-convert does not support link like "./"
+    this.opts.directoryIndex = false;
+}
+util.inherits(_EbookOutput, WebsiteOutput);
+
+var EbookOutput = assetsInliner(_EbookOutput);
+
+EbookOutput.prototype.name = 'ebook';
+
+// Finish generation, create ebook using ebook-convert
+EbookOutput.prototype.finish = function() {
+    var that = this;
+    if (that.book.isMultilingual()) {
+        return EbookOutput.super_.prototype.finish.apply(that);
+    }
+
+    return Promise()
+    .then(function() {
+        return EbookOutput.super_.prototype.finish.apply(that);
+    })
+
+    // Generate SUMMARY.html
+    .then(function() {
+        return that.render('summary', that.getContext())
+        .then(function(html) {
+            return that.writeFile(
+                'SUMMARY.html',
+                html
+            );
+        });
+    })
+
+    // Start ebook-convert
+    .then(function() {
+        return that.ebookConvertOption();
+    })
+
+    .then(function(options) {
+        if (!that.opts.format) return;
+
+        var cmd = [
+            'ebook-convert',
+            that.resolve('SUMMARY.html'),
+            that.resolve('index.'+that.opts.format),
+            command.optionsToShellArgs(options)
+        ].join(' ');
+
+        return command.exec(cmd)
+        .progress(function(data) {
+            that.book.log.debug(data);
+        })
+        .fail(function(err) {
+            if (err.code == 127) {
+                throw error.RequireInstallError({
+                    cmd: 'ebook-convert',
+                    install: 'Install it from Calibre: https://calibre-ebook.com'
+                });
+            }
+
+            throw error.EbookError(err);
+        });
+    });
+};
+
+// Generate header/footer for PDF
+EbookOutput.prototype.getPDFTemplate = function(tpl) {
+    var that = this;
+    var context = _.extend(
+        {
+            // Nunjucks context mapping to ebook-convert templating
+            page: {
+                num: '_PAGENUM_',
+                title: '_TITLE_',
+                section: '_SECTION_'
+            }
+        },
+        this.getContext()
+    );
+
+    return this.render('pdf_'+tpl, context)
+
+    // Inline css, include css relative to the output folder
+    .then(function(output) {
+        return Promise.nfcall(juice.juiceResources, output, {
+            webResources: {
+                relativeTo: that.root()
+            }
+        });
+    });
+};
+
+// Locate the cover file to use
+// Use configuration or search a "cover.jpg" file
+// For multi-lingual book, it can use the one from the main book
+EbookOutput.prototype.locateCover = function() {
+    var cover = this.book.config.get('cover', 'cover.jpg');
+
+    // Resolve to absolute
+    cover = this.resolve(cover);
+
+    // Cover doesn't exist and multilingual?
+    if (!fs.existsSync(cover)) {
+        if (this.parent) return this.parent.locateCover()
+        else return undefined;
+    }
+
+    return cover;
+};
+
+// Generate options for ebook-convert
+EbookOutput.prototype.ebookConvertOption = function() {
+    var that = this;
+
+    var options = {
+        '--cover': this.locateCover(),
+        '--title': that.book.config.get('title'),
+        '--comments': that.book.config.get('description'),
+        '--isbn': that.book.config.get('isbn'),
+        '--authors': that.book.config.get('author'),
+        '--language': that.book.config.get('language'),
+        '--book-producer': 'GitBook',
+        '--publisher': 'GitBook',
+        '--chapter': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter \')]',
+        '--level1-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-1 \')]',
+        '--level2-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-2 \')]',
+        '--level3-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-3 \')]',
+        '--no-chapters-in-toc': true,
+        '--max-levels': '1',
+        '--breadth-first': true
+    };
+
+    if (that.opts.format == 'epub') {
+        options = _.extend(options, {
+            '--dont-split-on-page-breaks': true
+        });
+    }
+
+    if (that.opts.format != 'pdf') return Promise(options);
+
+    var pdfOptions = that.book.config.get('pdf');
+
+    options = _.extend(options, {
+        '--chapter-mark': String(pdfOptions.chapterMark),
+        '--page-breaks-before': String(pdfOptions.pageBreaksBefore),
+        '--margin-left': String(pdfOptions.margin.left),
+        '--margin-right': String(pdfOptions.margin.right),
+        '--margin-top': String(pdfOptions.margin.top),
+        '--margin-bottom': String(pdfOptions.margin.bottom),
+        '--pdf-default-font-size': String(pdfOptions.fontSize),
+        '--pdf-mono-font-size': String(pdfOptions.fontSize),
+        '--paper-size': String(pdfOptions.paperSize),
+        '--pdf-page-numbers': Boolean(pdfOptions.pageNumbers),
+        '--pdf-header-template': that.getPDFTemplate('header'),
+        '--pdf-footer-template': that.getPDFTemplate('footer'),
+        '--pdf-sans-family': String(pdfOptions.fontFamily)
+    });
+
+    return that.getPDFTemplate('header')
+    .then(function(tpl) {
+        options['--pdf-header-template'] = tpl;
+
+        return that.getPDFTemplate('footer');
+    })
+    .then(function(tpl) {
+        options['--pdf-footer-template'] = tpl;
+
+        return options;
+    });
+};
+
+// Don't write multi-lingual index for wbook
+EbookOutput.prototype.outputMultilingualIndex = function() {
+
+};
+
+module.exports = EbookOutput;
diff --git a/lib/output/folder.js b/lib/output/folder.js
new file mode 100644
index 0000000..8303ed2
--- /dev/null
+++ b/lib/output/folder.js
@@ -0,0 +1,152 @@
+var _ = require('lodash');
+var util = require('util');
+var path = require('path');
+
+var Output = require('./base');
+var fs = require('../utils/fs');
+var pathUtil = require('../utils/path');
+var Promise = require('../utils/promise');
+
+/*
+This output requires the native fs module to output
+book as a directory (mapping assets and pages)
+*/
+
+module.exports = function folderOutput(Base) {
+    Base = Base || Output;
+
+    function FolderOutput() {
+        Base.apply(this, arguments);
+
+        this.opts.root = path.resolve(this.opts.root || this.book.resolve('_book'));
+    }
+    util.inherits(FolderOutput, Base);
+
+    // Copy an asset file (non-parsable), ex: images, etc
+    FolderOutput.prototype.onAsset = function(filename) {
+        return this.copyFile(
+            this.book.resolve(filename),
+            filename
+        );
+    };
+
+    // Prepare the generation by creating the output folder
+    FolderOutput.prototype.prepare = function() {
+        var that = this;
+
+        return Promise()
+        .then(function() {
+            return FolderOutput.super_.prototype.prepare.apply(that);
+        })
+
+        // Cleanup output folder
+        .then(function() {
+            that.log.debug.ln('removing previous output directory');
+            return fs.rmDir(that.root())
+            .fail(function() {
+                return Promise();
+            });
+        })
+
+        // Create output folder
+        .then(function() {
+            that.log.debug.ln('creating output directory');
+            return fs.mkdirp(that.root());
+        })
+
+        // Add output folder to ignored files
+        .then(function() {
+            that.ignore.addPattern([
+                path.relative(that.book.root, that.root())
+            ]);
+        });
+    };
+
+    // Prepare output for a language book
+    FolderOutput.prototype.onLanguageBook = function(book) {
+        return new this.constructor(book, _.extend({}, this.opts, {
+
+            // Language output should be output in sub-directory of output
+            root: path.resolve(this.root(), book.language)
+        }), this);
+    };
+
+    // ----- Utility methods -----
+
+    // Return path to the root folder
+    FolderOutput.prototype.root = function() {
+        return this.opts.root;
+    };
+
+    // Resolve a file in the output directory
+    FolderOutput.prototype.resolve = function(filename) {
+        return pathUtil.resolveInRoot.apply(null, [this.root()].concat(_.toArray(arguments)));
+    };
+
+    // Copy a file to the output
+    FolderOutput.prototype.copyFile = function(from, to) {
+        var that = this;
+
+        return Promise()
+        .then(function() {
+            to = that.resolve(to);
+            var folder = path.dirname(to);
+
+            // Ensure folder exists
+            return fs.mkdirp(folder);
+        })
+        .then(function() {
+            return fs.copy(from, to);
+        });
+    };
+
+    // Write a file/buffer to the output folder
+    FolderOutput.prototype.writeFile = function(filename, buf) {
+        var that = this;
+
+        return Promise()
+        .then(function() {
+            filename = that.resolve(filename);
+            var folder = path.dirname(filename);
+
+            // Ensure folder exists
+            return fs.mkdirp(folder);
+        })
+
+        // Write the file
+        .then(function() {
+            return fs.writeFile(filename, buf);
+        });
+    };
+
+    // Return true if a file exists in the output folder
+    FolderOutput.prototype.hasFile = function(filename) {
+        var that = this;
+
+        return Promise()
+        .then(function() {
+            return fs.exists(that.resolve(filename));
+        });
+    };
+
+    // Create a new unique file
+    // Returns its filename
+    FolderOutput.prototype.createNewFile = function(base, filename) {
+        var that = this;
+
+        if (!filename) {
+            filename = path.basename(filename);
+            base = path.dirname(base);
+        }
+
+        return fs.uniqueFilename(this.resolve(base), filename)
+            .then(function(out) {
+                out = path.join(base, out);
+
+                return fs.ensure(that.resolve(out))
+                    .thenResolve(out);
+            });
+    };
+
+    return FolderOutput;
+};
diff --git a/lib/output/json.js b/lib/output/json.js
new file mode 100644
index 0000000..e8a71cc
--- /dev/null
+++ b/lib/output/json.js
@@ -0,0 +1,47 @@
+var conrefsLoader = require('./conrefs');
+
+var JSONOutput = conrefsLoader();
+
+JSONOutput.prototype.name = 'json';
+
+// Don't copy asset on JSON output
+JSONOutput.prototype.onAsset = function(filename) {};
+
+// Write a page (parsable file)
+JSONOutput.prototype.onPage = function(page) {
+    var that = this;
+
+    // Parse the page
+    return page.toHTML(this)
+
+    // Write as json
+    .then(function() {
+        var json = page.getContext();
+
+        // Delete some private properties
+        delete json.config;
+
+        // Specify JSON output version
+        json.version = '2';
+
+        return that.writeFile(
+            page.withExtension('.json'),
+            JSON.stringify(json, null, 4)
+        );
+    });
+};
+
+// At the end of generation, generate README.json for multilingual books
+JSONOutput.prototype.finish = function() {
+    if (!this.book.isMultilingual()) return;
+
+    // Copy README.json from main book
+    var mainLanguage = this.book.langs.getDefault().id;
+    return this.copyFile(
+        this.resolve(mainLanguage, 'README.json'),
+        'README.json'
+    );
+};
+
+
+module.exports = JSONOutput;
diff --git a/lib/output/website.js b/lib/output/website.js
new file mode 100644
index 0000000..230af71
--- /dev/null
+++ b/lib/output/website.js
@@ -0,0 +1,270 @@
+var _ = require('lodash');
+var path = require('path');
+var util = require('util');
+var nunjucks = require('nunjucks');
+var I18n = require('i18n-t');
+
+var Promise = require('../utils/promise');
+var location = require('../utils/location');
+var fs = require('../utils/fs');
+var defaultFilters = require('../template/filters');
+var conrefsLoader = require('./conrefs');
+var Output = require('./base');
+
+// Tranform a theme ID into a plugin
+function themeID(plugin) {
+    return 'theme-' + plugin;
+}
+
+// Directory for a theme with the templates
+function templatesPath(dir) {
+    return path.join(dir, '_layouts');
+}
+
+function _WebsiteOutput() {
+    Output.apply(this, arguments);
+
+    // Nunjucks environment
+    this.env;
+
+    // Plugin instance for the main theme
+    this.theme;
+
+    // Plugin instance for the default theme
+    this.defaultTheme;
+
+    // Resources loaded from plugins
+    this.resources;
+
+    // i18n for themes
+    this.i18n = new I18n();
+}
+util.inherits(_WebsiteOutput, Output);
+
+var WebsiteOutput = conrefsLoader(_WebsiteOutput);
+
+// Name of the generator
+// It's being used as a prefix for templates
+WebsiteOutput.prototype.name = 'website';
+
+// Load and setup the theme
+WebsiteOutput.prototype.prepare = function() {
+    var that = this;
+
+    return Promise()
+    .then(function() {
+        return WebsiteOutput.super_.prototype.prepare.apply(that);
+    })
+
+    .then(function() {
+        var themeName = that.book.config.get('theme');
+        that.theme = that.plugins.get(themeID(themeName));
+        that.themeDefault = that.plugins.get(themeID('default'));
+
+        if (!that.theme) {
+            throw new Error('Theme "' + themeName + '" is not installed, add "' + themeID(themeName) + '" to your "book.json"');
+        }
+
+        if (that.themeDefault.root != that.theme.root) {
+            that.log.info.ln('build using theme "' + themeName + '"');
+        }
+
+        // This list is ordered to give priority to templates in the book
+        var searchPaths = _.chain([
+            // The book itself can contains a "_layouts" folder
+            that.book.root,
+
+            // Installed plugin (it can be identical to themeDefault.root)
+            that.theme.root,
+
+            // Is default theme still installed
+            that.themeDefault? that.themeDefault.root : null
+        ])
+        .compact()
+        .uniq()
+        .value();
+
+        // Load i18n
+        _.each(searchPaths.concat().reverse(), function(searchPath) {
+            var i18nRoot = path.resolve(searchPath, '_i18n');
+
+            if (!fs.existsSync(i18nRoot)) return;
+            that.i18n.load(i18nRoot);
+        });
+
+        that.env = new nunjucks.Environment(new nunjucks.FileSystemLoader(_.map(searchPaths, templatesPath)));
+
+        // Add GitBook default filters
+        _.each(defaultFilters, function(fn, filter) {
+            that.env.addFilter(filter, fn);
+        });
+
+        // Translate using _i18n locales
+        that.env.addFilter('t', function(s) {
+            return that.i18n.t(that.book.config.get('language'), s);
+        });
+
+        // Transform an absolute path into a relative path
+        // using this.ctx.page.path
+        that.env.addFilter('resolveFile', function(href) {
+            return location.normalize(that.resolveForPage(this.ctx.file.path, href));
+        });
+
+        // Test if a file exists
+        that.env.addFilter('fileExists', function(href) {
+            return fs.existsSync(that.resolve(href));
+        });
+
+        // Transform a '.md' into a '.html' (README -> index)
+        that.env.addFilter('contentURL', function(s) {
+            return location.normalize(that.outputUrl(s));
+        });
+
+        // Relase path to an asset
+        that.env.addFilter('resolveAsset', function(href) {
+            href = path.join('gitbook', href);
+
+            // Resolve for current file
+            if (this.ctx.file) {
+                href = that.resolveForPage(this.ctx.file.path, '/' + href);
+            }
+
+            // Use assets from parent
+            if (that.book.isLanguageBook()) {
+                href = path.join('../', href);
+            }
+
+            return location.normalize(href);
+        });
+    })
+
+    // Copy assets from themes before copying files from book
+    .then(function() {
+        if (that.book.isLanguageBook()) return;
+
+        return Promise.serie([
+            // Assets from the book are already copied
+            // The order is reversed from the template's one
+
+            // Is default theme still installed
+            that.themeDefault && that.themeDefault.root != that.theme.root?
+                that.themeDefault.root : null,
+
+            // Installed plugin (it can be identical to themeDefault.root)
+            that.theme.root
+        ], function(folder) {
+            if (!folder) return;
+
+            // Copy assets only if exists (don't fail otherwise)
+            var assetFolder = path.join(folder, '_assets', that.name);
+            if (!fs.existsSync(assetFolder)) return;
+
+            that.log.debug.ln('copy assets from theme', assetFolder);
+            return fs.copyDir(
+                assetFolder,
+                that.resolve('gitbook'),
+                {
+                    deleteFirst: false, // Delete "to" before
+                    overwrite: true,
+                    confirm: true
+                }
+            );
+        });
+    })
+
+    // Load resources for plugins
+    .then(function() {
+        return that.plugins.getResources(that.name)
+        .then(function(resources) {
+            that.resources = resources;
+        });
+    });
+};
+
+// Write a page (parsable file)
+WebsiteOutput.prototype.onPage = function(page) {
+    var that = this;
+
+    // Parse the page
+    return page.toHTML(this)
+
+    // Render the page template with the same context as the json output
+    .then(function() {
+        return that.render('page', page.getContext());
+    })
+
+    // Write the HTML file
+    .then(function(html) {
+        return that.writeFile(
+            that.outputPath(page.path),
+            html
+        );
+    });
+};
+
+// Finish generation, create ebook using ebook-convert
+WebsiteOutput.prototype.finish = function() {
+    var that = this;
+
+    return Promise()
+    .then(function() {
+        return WebsiteOutput.super_.prototype.finish.apply(that);
+    })
+
+    // Copy assets from plugins
+    .then(function() {
+        if (that.book.isLanguageBook()) return;
+        return that.plugins.copyResources(that.name, that.resolve('gitbook'));
+    })
+
+    // Generate homepage to select languages
+    .then(function() {
+        if (!that.book.isMultilingual()) return;
+        return that.outputMultilingualIndex();
+    });
+};
+
+// ----- Utilities ----
+
+// Write multi-languages index
+WebsiteOutput.prototype.outputMultilingualIndex = function() {
+    var that = this;
+
+    return that.render('languages', that.getContext())
+    .then(function(html) {
+        return that.writeFile(
+            'index.html',
+            html
+        );
+    });
+};
+
+// Render a template using nunjucks
+// Templates are stored in `_layouts` folders
+WebsiteOutput.prototype.render = function(tpl, context) {
+    var filename = this.templateName(tpl);
+    context = _.extend(context, {
+        template: {
+            // Same template but in the default theme
+            default: this.themeDefault? path.resolve(templatesPath(this.themeDefault.root), filename) : null,
+
+            // Same template but in the theme
+            theme: path.resolve(templatesPath(this.theme.root), filename)
+        },
+
+        plugins: {
+            resources: this.resources
+        },
+
+        options: this.opts
+    });
+
+    return Promise.nfcall(this.env.render.bind(this.env), filename, context);
+};
+
+// Return a complete name for a template
+WebsiteOutput.prototype.templateName = function(name) {
+    return path.join(this.name, name+'.html');
+};
+
+module.exports = WebsiteOutput;
diff --git a/lib/page/html.js b/lib/page/html.js
new file mode 100644
index 0000000..bce6cd2
--- /dev/null
+++ b/lib/page/html.js
@@ -0,0 +1,280 @@
+var _ = require('lodash');
+var url = require('url');
+var cheerio = require('cheerio');
+var domSerializer = require('dom-serializer');
+var slug = require('github-slugid');
+
+var Promise = require('../utils/promise');
+var location = require('../utils/location');
+
+// Selector to ignore
+var ANNOTATION_IGNORE = '.no-glossary,code,pre,a,script,h1,h2,h3,h4,h5,h6';
+
+function HTMLPipeline(htmlString, opts) {
+    _.bindAll(this);
+
+    this.opts = _.defaults(opts || {}, {
+        // Called once the description has been found
+        onDescription: function(description) { },
+
+        // Calcul new href for a relative link
+        onRelativeLink: _.identity,
+
+        // Output an image
+        onImage: _.identity,
+
+        // Syntax highlighting
+        onCodeBlock: _.identity,
+
+        // Output a svg, if returns null the svg is kept inlined
+        onOutputSVG: _.constant(null),
+
+        // Words to annotate
+        annotations: [],
+
+        // When an annotation is applied
+        onAnnotation: function () { }
+    });
+
+    this.$ = cheerio.load(htmlString, {
+        // We should parse html without trying to normalize too much
+        xmlMode: false,
+
+        // SVG need some attributes to use uppercases
+        lowerCaseAttributeNames: false,
+        lowerCaseTags: false
+    });
+}
+
+// Transform a query of elements in the page
+HTMLPipeline.prototype._transform = function(query, fn) {
+    var that = this;
+
+    var $elements = this.$(query);
+
+    return Promise.serie($elements, function(el) {
+        var $el = that.$(el);
+        return fn.call(that, $el);
+    });
+};
+
+// Normalize links
+HTMLPipeline.prototype.transformLinks = function() {
+    return this._transform('a', function($a) {
+        var href = $a.attr('href');
+        if (!href) return;
+
+        if (location.isAnchor(href)) {
+            // Don't "change" anchor links
+        } else if (location.isRelative(href)) {
+            // Preserve anchor
+            var parsed = url.parse(href);
+            var filename = this.opts.onRelativeLink(parsed.pathname);
+
+            $a.attr('href', filename + (parsed.hash || ''));
+        } else {
+            // External links
+            $a.attr('target', '_blank');
+        }
+    });
+};
+
+// Normalize images
+HTMLPipeline.prototype.transformImages = function() {
+    return this._transform('img', function($img) {
+        return Promise(this.opts.onImage($img.attr('src')))
+        .then(function(filename) {
+            $img.attr('src', filename);
+        });
+    });
+};
+
+// Normalize code blocks
+HTMLPipeline.prototype.transformCodeBlocks = function() {
+    return this._transform('code', function($code) {
+        // Extract language
+        var lang = _.chain(
+                ($code.attr('class') || '').split(' ')
+            )
+            .map(function(cl) {
+                // Markdown
+                if (cl.search('lang-') === 0) return cl.slice('lang-'.length);
+
+                // Asciidoc
+                if (cl.search('language-') === 0) return cl.slice('language-'.length);
+
+                return null;
+            })
+            .compact()
+            .first()
+            .value();
+
+        var source = $code.text();
+
+        return Promise(this.opts.onCodeBlock(source, lang))
+        .then(function(blk) {
+            if (blk.html === false) {
+                $code.text(blk.body);
+            } else {
+                $code.html(blk.body);
+            }
+        });
+    });
+};
+
+// Add ID to headings
+HTMLPipeline.prototype.transformHeadings = function() {
+    var that = this;
+
+    this.$('h1,h2,h3,h4,h5,h6').each(function() {
+        var $h = that.$(this);
+
+        // Already has an ID?
+        if ($h.attr('id')) return;
+        $h.attr('id', slug($h.text()));
+    });
+};
+
+// Outline SVG from the HML
+HTMLPipeline.prototype.transformSvgs = function() {
+    var that = this;
+
+    return this._transform('svg', function($svg) {
+        var content = [
+            '<?xml version="1.0" encoding="UTF-8"?>',
+            renderDOM(that.$, $svg)
+        ].join('\n');
+
+        return Promise(that.opts.onOutputSVG(content))
+        .then(function(filename) {
+            if (!filename) return;
+
+            $svg.replaceWith(that.$('<img>').attr('src', filename));
+        });
+    });
+};
+
+// Annotate the content
+HTMLPipeline.prototype.applyAnnotations = function() {
+    var that = this;
+
+    _.each(this.opts.annotations, function(annotation) {
+        var searchRegex =  new RegExp( '\\b(' + pregQuote(annotation.name.toLowerCase()) + ')\\b' , 'gi' );
+
+        that.$('*').each(function() {
+            var $this = that.$(this);
+
+            if (
+                $this.is(ANNOTATION_IGNORE) ||
+                $this.parents(ANNOTATION_IGNORE).length > 0
+            ) return;
+
+            replaceText(that.$, this, searchRegex, function(match) {
+                that.opts.onAnnotation(annotation);
+
+                return '<a href="' + that.opts.onRelativeLink(annotation.href) + '" '
+                    + 'class="glossary-term" title="'+_.escape(annotation.description)+'">'
+                    + match
+                    + '</a>';
+            });
+        });
+    });
+};
+
+// Extract page description from html
+// This can totally be improved
+HTMLPipeline.prototype.extractDescription = function() {
+    var $p = this.$('p').first();
+    var description = $p.text().trim().slice(0, 155);
+
+    this.opts.onDescription(description);
+};
+
+// Write content to the pipeline
+HTMLPipeline.prototype.output = function() {
+    var that = this;
+
+    return Promise()
+    .then(this.extractDescription)
+    .then(this.transformImages)
+    .then(this.transformHeadings)
+    .then(this.transformCodeBlocks)
+    .then(this.transformSvgs)
+    .then(this.applyAnnotations)
+
+    // Transform of links should be applied after annotations
+    // because annotations are created as links
+    .then(this.transformLinks)
+
+    .then(function() {
+        return renderDOM(that.$);
+    });
+};
+
+
+// Render a cheerio DOM as html
+function renderDOM($, dom, options) {
+    if (!dom && $._root && $._root.children) {
+        dom = $._root.children;
+    }
+    options = options|| dom.options || $._options;
+    return domSerializer(dom, options);
+}
+
+// Replace text in an element
+function replaceText($, el, search, replace, text_only ) {
+    return $(el).each(function(){
+        var node = this.firstChild,
+            val,
+            new_val,
+
+            // Elements to be removed at the end.
+            remove = [];
+
+        // Only continue if firstChild exists.
+        if ( node ) {
+
+            // Loop over all childNodes.
+            while (node) {
+
+                // Only process text nodes.
+                if ( node.nodeType === 3 ) {
+
+                    // The original node value.
+                    val = node.nodeValue;
+
+                    // The new value.
+                    new_val = val.replace( search, replace );
+
+                    // Only replace text if the new value is actually different!
+                    if ( new_val !== val ) {
+
+                        if ( !text_only && /</.test( new_val ) ) {
+                            // The new value contains HTML, set it in a slower but far more
+                            // robust way.
+                            $(node).before( new_val );
+
+                            // Don't remove the node yet, or the loop will lose its place.
+                            remove.push( node );
+                        } else {
+                            // The new value contains no HTML, so it can be set in this
+                            // very fast, simple way.
+                            node.nodeValue = new_val;
+                        }
+                    }
+                }
+
+                node = node.nextSibling;
+            }
+        }
+
+        // Time to remove those elements!
+        if (remove.length) $(remove).remove();
+    });
+}
+
+function pregQuote( str ) {
+    return (str+'').replace(/([\\\.\+\*\?\[\^\]\$\(\)\{\}\=\!\<\>\|\:])/g, '\\$1');
+}
+
+module.exports = HTMLPipeline;
diff --git a/lib/page/index.js b/lib/page/index.js
new file mode 100644
index 0000000..f3a8f39
--- /dev/null
+++ b/lib/page/index.js
@@ -0,0 +1,250 @@
+var _ = require('lodash');
+var path = require('path');
+var direction = require('direction');
+var fm = require('front-matter');
+
+var error = require('../utils/error');
+var pathUtil = require('../utils/path');
+var location = require('../utils/location');
+var parsers = require('../parsers');
+var gitbook = require('../gitbook');
+var pluginCompatibility = require('../plugins/compatibility');
+var HTMLPipeline = require('./html');
+
+/*
+A page represent a parsable file in the book (Markdown, Asciidoc, etc)
+*/
+
+function Page(book, filename) {
+    if (!(this instanceof Page)) return new Page(book, filename);
+    var extension;
+    _.bindAll(this);
+
+    this.book = book;
+    this.log = this.book.log;
+
+    // Current content
+    this.content = '';
+
+    // Short description for the page
+    this.description = '';
+
+    // Relative path to the page
+    this.path = location.normalize(filename);
+
+    // Absolute path to the page
+    this.rawPath = this.book.resolve(filename);
+
+    // Last modification date
+    this.mtime = 0;
+
+    // Can we parse it?
+    extension = path.extname(this.path);
+    this.parser = parsers.get(extension);
+    if (!this.parser) throw error.ParsingError(new Error('Can\'t parse file "'+this.path+'"'));
+
+    this.type = this.parser.name;
+}
+
+// Return the filename of the page with another extension
+// "README.md" -> "README.html"
+Page.prototype.withExtension = function(ext) {
+    return pathUtil.setExtension(this.path, ext);
+};
+
+// Resolve a filename relative to this page
+// It returns a path relative to the book root folder
+Page.prototype.resolveLocal = function() {
+    var dir = path.dirname(this.path);
+    var file = path.join.apply(path, _.toArray(arguments));
+
+    return location.toAbsolute(file, dir, '');
+};
+
+// Resolve a filename relative to this page
+// It returns an absolute path for the FS
+Page.prototype.resolve = function() {
+    return this.book.resolve(this.resolveLocal.apply(this, arguments));
+};
+
+// Convert an absolute path (in the book) to a relative path from this page
+Page.prototype.relative = function(name) {
+    // Convert /test.png -> test.png
+    name = location.toAbsolute(name, '', '');
+
+    return location.relative(
+        this.resolve('.') + '/',
+        this.book.resolve(name)
+    );
+};
+
+// Return a page result of a relative page from this page
+Page.prototype.followPage = function(filename) {
+    var absPath = this.resolveLocal(filename);
+    return this.book.getPage(absPath);
+};
+
+// Update content of the page
+Page.prototype.update = function(content) {
+    this.content = content;
+};
+
+// Read the page as a string
+Page.prototype.read = function() {
+    var that = this;
+
+    return this.book.statFile(this.path)
+    .then(function(stat) {
+        that.mtime = stat.mtime;
+        return that.book.readFile(that.path);
+    })
+    .then(this.update);
+};
+
+// Return templating context for this page
+// This is used both for themes and page parsing
+Page.prototype.getContext = function() {
+    var article = this.book.summary.getArticle(this);
+    var next = article? article.next() : null;
+    var prev = article? article.prev() : null;
+
+    // Detect text direction in this page
+    var dir = this.book.config.get('direction');
+    if (!dir) {
+        dir = direction(this.content);
+        if (dir == 'neutral') dir = null;
+    }
+
+    return _.extend(
+        {
+            file: {
+                path: this.path,
+                mtime: this.mtime,
+                type: this.type
+            },
+            page: {
+                title: article? article.title : null,
+                description: this.description,
+                next: next? next.getContext() : null,
+                previous: prev? prev.getContext() : null,
+                level: article? article.level : null,
+                depth: article? article.depth : 0,
+                content: this.content,
+                dir: dir
+            }
+        },
+        gitbook.getContext(),
+        this.book.getContext(),
+        this.book.langs.getContext(),
+        this.book.summary.getContext(),
+        this.book.glossary.getContext(),
+        this.book.config.getContext()
+    );
+};
+
+// Parse the page and return its content
+Page.prototype.toHTML = function(output) {
+    var that = this;
+
+    this.log.debug.ln('start parsing file', this.path);
+
+    // Call a hook in the output
+    // using an utility to "keep" compatibility with gitbook 2
+    function hook(name) {
+        return pluginCompatibility.pageHook(that, function(ctx) {
+            return output.plugins.hook(name, ctx);
+        })
+        .then(function(result) {
+            if(_.isString(result)) that.update(result);
+        });
+    }
+
+    return this.read()
+
+    // Parse yaml front matter
+    .then(function() {
+        var parsed = fm(that.content);
+
+        // Extend page with the fontmatter attribute
+        that.description = parsed.attributes.description || '';
+
+        // Keep only the body
+        that.update(parsed.body);
+    })
+
+    .then(function() {
+        return hook('page:before');
+    })
+
+    // Pre-process page with parser
+    .then(function() {
+        return that.parser.page.prepare(that.content)
+        .then(that.update);
+    })
+
+    // Render template
+    .then(function() {
+        return output.template.render(that.content, that.getContext(), {
+            path: that.path
+        })
+        .then(that.update);
+    })
+
+    // Render markup using the parser
+    .then(function() {
+        return that.parser.page(that.content)
+        .then(function(out) {
+            that.update(out.content);
+        });
+    })
+
+    // Post process templating
+    .then(function() {
+        return output.template.postProcess(that.content)
+        .then(that.update);
+    })
+
+    // Normalize HTML output
+    .then(function() {
+        var pipelineOpts = {
+            onRelativeLink: _.partial(output.onRelativeLink, that),
+            onImage: _.partial(output.onOutputImage, that),
+            onOutputSVG: _.partial(output.onOutputSVG, that),
+
+            // Use 'code' template block
+            onCodeBlock: function(source, lang) {
+                return output.template.applyBlock('code', {
+                    body: source,
+                    kwargs: {
+                        language: lang
+                    }
+                });
+            },
+
+            // Extract description from page's content if no frontmatter
+            onDescription: function(description) {
+                if (that.description) return;
+                that.description = description;
+            },
+
+            // Convert glossary entries to annotations
+            annotations: that.book.glossary.annotations()
+        };
+        var pipeline = new HTMLPipeline(that.content, pipelineOpts);
+
+        return pipeline.output()
+        .then(that.update);
+    })
+
+    .then(function() {
+        return hook('page');
+    })
+
+    // Return content itself
+    .then(function() {
+        return that.content;
+    });
+};
+
+
+module.exports = Page;
diff --git a/lib/parsers.js b/lib/parsers.js
new file mode 100644
index 0000000..6899865
--- /dev/null
+++ b/lib/parsers.js
@@ -0,0 +1,60 @@
+var _ = require('lodash');
+var path = require('path');
+
+var markdownParser = require('gitbook-markdown');
+var asciidocParser = require('gitbook-asciidoc');
+
+var Promise = require('./utils/promise');
+
+// This list is ordered by priority of parsers to use
+var PARSERS = [
+    createParser(markdownParser, {
+        name: 'markdown',
+        extensions: ['.md', '.markdown', '.mdown']
+    }),
+    createParser(asciidocParser, {
+        name: 'asciidoc',
+        extensions: ['.adoc', '.asciidoc']
+    })
+];
+
+
+// Prepare and compose a parser
+function createParser(parser, base) {
+    var nparser = base;
+
+    nparser.glossary = Promise.wrapfn(parser.glossary);
+    nparser.glossary.toText = Promise.wrapfn(parser.glossary.toText);
+
+    nparser.summary = Promise.wrapfn(parser.summary);
+    nparser.summary.toText = Promise.wrapfn(parser.summary.toText);
+
+    nparser.langs = Promise.wrapfn(parser.langs);
+    nparser.langs.toText = Promise.wrapfn(parser.langs.toText);
+
+    nparser.readme = Promise.wrapfn(parser.readme);
+
+    nparser.page = Promise.wrapfn(parser.page);
+    nparser.page.prepare = Promise.wrapfn(parser.page.prepare || _.identity);
+
+    return nparser;
+}
+
+// Return a specific parser according to an extension
+function getParser(ext) {
+    return _.find(PARSERS, function(input) {
+        return input.name == ext || _.contains(input.extensions, ext);
+    });
+}
+
+// Return parser for a file
+function getParserForFile(filename) {
+    return getParser(path.extname(filename));
+}
+
+module.exports = {
+    all: PARSERS,
+    extensions: _.flatten(_.pluck(PARSERS, 'extensions')),
+    get: getParser,
+    getForFile: getParserForFile
+};
diff --git a/lib/plugin.js b/lib/plugin.js
deleted file mode 100644
index b7e8260..0000000
--- a/lib/plugin.js
+++ /dev/null
@@ -1,241 +0,0 @@
-var _ = require('lodash');
-var Q = require('q');
-var path = require('path');
-var url = require('url');
-var fs = require('./utils/fs');
-var resolve = require('resolve');
-var mergeDefaults = require('merge-defaults');
-var jsonschema = require('jsonschema');
-var jsonSchemaDefaults = require('json-schema-defaults');
-
-var version = require('./version');
-
-var PLUGIN_PREFIX = 'gitbook-plugin-';
-
-// Return an absolute name for the plugin (the one on NPM)
-function absoluteName(name) {
-    if (name.indexOf(PLUGIN_PREFIX) === 0) return name;
-    return [PLUGIN_PREFIX, name].join('');
-}
-
-
-var Plugin = function(book, name) {
-    this.book = book;
-    this.name = absoluteName(name);
-    this.packageInfos = {};
-    this.infos = {};
-
-    // Bind methods
-    _.bindAll(this);
-
-    _.each([
-        absoluteName(name),
-        name
-    ], function(_name) {
-        // Load from the book
-        if (this.load(_name, book.root)) return false;
-
-        // Load from default plugins
-        if (this.load(_name, __dirname)) return false;
-    }, this);
-};
-
-// Type of plugins resources
-Plugin.RESOURCES = ['js', 'css'];
-Plugin.HOOKS = [
-    'init', 'finish', 'finish:before', 'config', 'page', 'page:before'
-];
-
-// Return the reduce name for the plugin
-// "gitbook-plugin-test" -> "test"
-// Return a relative name for the plugin (the one on GitBook)
-Plugin.prototype.reducedName = function() {
-    return this.name.replace(PLUGIN_PREFIX, '');
-};
-
-// Load from a name
-Plugin.prototype.load = function(name, baseDir) {
-    try {
-        var res = resolve.sync(name+'/package.json', { basedir: baseDir });
-
-        this.baseDir = path.dirname(res);
-        this.packageInfos = require(res);
-        this.infos = require(resolve.sync(name, { basedir: baseDir }));
-        this.name = this.packageInfos.name;
-
-        return true;
-    } catch (e) {
-        this.packageInfos = {};
-        this.infos = {};
-        return false;
-    }
-};
-
-Plugin.prototype.normalizeResource = function(resource) {
-    // Parse the resource path
-    var parsed = url.parse(resource);
-
-    // This is a remote resource
-    // so we will simply link to using it's URL
-    if (parsed.protocol) {
-        return {
-            'url': resource
-        };
-    }
-
-    // This will be copied over from disk
-    // and shipped with the book's build
-    return { 'path': this.name+'/'+resource };
-};
-
-// Return resources
-Plugin.prototype._getResources = function(base) {
-    base = base;
-    var book = this.infos[base];
-
-    // Compatibility with version 1.x.x
-    if (base == 'website') book = book || this.infos.book;
-
-    // Nothing specified, fallback to default
-    if (!book) {
-        return Q({});
-    }
-
-    // Dynamic function
-    if(typeof book === 'function') {
-        // Call giving it the context of our book
-        return Q().then(book.bind(this.book));
-    }
-
-    // Plain data object
-    return Q(_.cloneDeep(book));
-};
-
-// Normalize resources and return them
-Plugin.prototype.getResources = function(base) {
-    var that = this;
-
-    return this._getResources(base)
-    .then(function(resources) {
-
-        _.each(Plugin.RESOURCES, function(resourceType) {
-            resources[resourceType] = (resources[resourceType] || []).map(that.normalizeResource);
-        });
-
-        return resources;
-    });
-};
-
-// Normalize filters and return them
-Plugin.prototype.getFilters = function() {
-    return this.infos.filters || {};
-};
-
-// Normalize blocks and return them
-Plugin.prototype.getBlocks = function() {
-    return this.infos.blocks || {};
-};
-
-// Test if it's a valid plugin
-Plugin.prototype.isValid = function() {
-    var that = this;
-    var isValid = (
-        this.packageInfos &&
-        this.packageInfos.name &&
-        this.packageInfos.engines &&
-        this.packageInfos.engines.gitbook &&
-        version.satisfies(this.packageInfos.engines.gitbook)
-    );
-
-    // Valid hooks
-    _.each(this.infos.hooks, function(hook, hookName) {
-        if (_.contains(Plugin.HOOKS, hookName)) return;
-        that.book.log.warn.ln('Hook "'+hookName+'"" used by plugin "'+that.packageInfos.name+'" has been removed or is deprecated');
-    });
-
-    return isValid;
-};
-
-// Normalize, validate configuration for this plugin using its schema
-// Throw an error when shcema is not respected
-Plugin.prototype.validateConfig = function(config) {
-    var that = this;
-
-    return Q()
-    .then(function() {
-        var schema = that.packageInfos.gitbook || {};
-        if (!schema) return config;
-
-        // Normalize schema
-        schema.id = '/pluginsConfig.'+that.reducedName();
-        schema.type = 'object';
-
-        // Validate and throw if invalid
-        var v = new jsonschema.Validator();
-        var result = v.validate(config, schema, {
-            propertyName: 'pluginsConfig.'+that.reducedName()
-        });
-
-        // Throw error
-        if (result.errors.length > 0) {
-            throw new Error('Configuration Error: '+result.errors[0].stack);
-        }
-
-        // Insert default values
-        var defaults = jsonSchemaDefaults(schema);
-        return mergeDefaults(config, defaults);
-    });
-};
-
-// Resolve file path
-Plugin.prototype.resolveFile = function(filename) {
-    return path.resolve(this.baseDir, filename);
-};
-
-// Resolve file path
-Plugin.prototype.callHook = function(name, data) {
-    // Our book will be the context to apply
-    var context = this.book;
-
-    var hookFunc = this.infos.hooks? this.infos.hooks[name] : null;
-    data = data || {};
-
-    if (!hookFunc) return Q(data);
-
-    this.book.log.debug.ln('call hook', name);
-    if (!_.contains(Plugin.HOOKS, name)) this.book.log.warn.ln('hook "'+name+'" used by plugin "'+this.name+'" is deprecated, and will be removed in the coming versions');
-
-    return Q()
-    .then(function() {
-        return hookFunc.apply(context, [data]);
-    });
-};
-
-// Copy plugin assets fodler
-Plugin.prototype.copyAssets = function(out, base) {
-    var that = this;
-
-    return this.getResources(base)
-    .get('assets')
-    .then(function(assets) {
-        // Assets are undefined
-        if(!assets) return false;
-
-        return fs.copy(
-            that.resolveFile(assets),
-            out
-        ).then(_.constant(true));
-    }, _.constant(false));
-};
-
-// Get config from book
-Plugin.prototype.getConfig = function() {
-    return this.book.config.get('pluginsConfig.'+this.reducedName(), {});
-};
-
-// Set configuration for this plugin
-Plugin.prototype.setConfig = function(values) {
-    return this.book.config.set('pluginsConfig.'+this.reducedName(), values);
-};
-
-module.exports = Plugin;
diff --git a/lib/plugins/compatibility.js b/lib/plugins/compatibility.js
new file mode 100644
index 0000000..7ad35a9
--- /dev/null
+++ b/lib/plugins/compatibility.js
@@ -0,0 +1,57 @@
+var _ = require('lodash');
+var error = require('../utils/error');
+
+/*
+    Return the context for a plugin.
+    It tries to keep compatibilities with GitBook v2
+*/
+function pluginCtx(plugin) {
+    var book = plugin.book;
+    var ctx = {
+        config: book.config,
+        log: plugin.log,
+
+        // Paths
+        resolve: book.resolve
+    };
+
+    // Deprecation
+    error.deprecateField(ctx, 'options', book.config.dump(), '"options" property is deprecated, use config.get(key) instead');
+
+    // Loop for template filters/blocks
+    error.deprecateField(ctx, 'book', ctx, '"book" property is deprecated, use "this" directly instead');
+
+    return ctx;
+}
+
+// Call a function "fn" with a context of page similar to the one in GitBook v2
+function pageHook(page, fn) {
+    var ctx = {
+        type: page.type,
+        content: page.content,
+        path: page.path,
+        rawPath: page.rawPath
+    };
+
+    // Deprecate sections
+    error.deprecateField(ctx, 'sections', [
+        { content: ctx.content }
+    ], '"sections" property is deprecated, use page.content instead');
+
+    return fn(ctx)
+    .then(function(result) {
+        if (!result) return undefined;
+        if (result.content) {
+            return result.content;
+        }
+
+        if (result.sections) {
+            return _.pluck(result.sections, 'content').join('\n');
+        }
+    });
+}
+
+module.exports = {
+    pluginCtx: pluginCtx,
+    pageHook: pageHook
+};
diff --git a/lib/plugins/index.js b/lib/plugins/index.js
new file mode 100644
index 0000000..8280542
--- /dev/null
+++ b/lib/plugins/index.js
@@ -0,0 +1,155 @@
+var _ = require('lodash');
+var path = require('path');
+
+var Promise = require('../utils/promise');
+var fs = require('../utils/fs');
+var BookPlugin = require('./plugin');
+var registry = require('./registry');
+var pluginsConfig = require('../config/plugins');
+
+/*
+PluginsManager is an interface to work with multiple plugins at once:
+- Extract assets from plugins
+- Call hooks for all plugins, etc
+*/
+
+function PluginsManager(book) {
+    this.book = book;
+    this.log = this.book.log;
+    this.plugins = [];
+
+    _.bindAll(this);
+}
+
+// Return count of plugins loaded
+PluginsManager.prototype.count = function() {
+    return _.size(this.plugins);
+};
+
+// Returns a plugin by its name
+PluginsManager.prototype.get = function(name) {
+    return _.find(this.plugins, {
+        id: name
+    });
+};
+
+// Load a plugin, or a list of plugins
+PluginsManager.prototype.load = function(name) {
+    var that = this;
+
+    if (_.isArray(name)) {
+        return Promise.serie(name, function(_name) {
+            return that.load(_name);
+        });
+    }
+
+    return Promise()
+
+    // Initiate and load the plugin
+    .then(function() {
+        var plugin;
+
+        if (!_.isString(name)) plugin = name;
+        else plugin = new BookPlugin(that.book, name);
+
+        if (that.get(plugin.id)) {
+            throw new Error('Plugin "'+plugin.id+'" is already loaded');
+        }
+
+
+        if (plugin.isLoaded()) return plugin;
+        else return plugin.load()
+            .thenResolve(plugin);
+    })
+
+    // Setup the plugin
+    .then(this._setup);
+};
+
+// Load all plugins from the book's configuration
+PluginsManager.prototype.loadAll = function() {
+    var plugins = _.pluck(this.book.config.get('plugins'), 'name');
+
+    this.log.info.ln('loading', plugins.length, 'plugins');
+    return this.load(plugins);
+};
+
+// Setup a plugin
+// Register its filter, blocks, etc
+PluginsManager.prototype._setup = function(plugin) {
+    this.plugins.push(plugin);
+};
+
+// Install all plugins for the book
+PluginsManager.prototype.install = function() {
+    var that = this;
+    var plugins = _.filter(this.book.config.get('plugins'), function(plugin) {
+        return !pluginsConfig.isDefaultPlugin(plugin.name);
+    });
+
+    if (plugins.length == 0) {
+        this.log.info.ln('nothing to install!');
+        return Promise(0);
+    }
+
+    this.log.info.ln('installing', plugins.length, 'plugins');
+
+    return Promise.serie(plugins, function(plugin) {
+        return registry.install(that.book, plugin.name, plugin.version);
+    })
+    .thenResolve(plugins.length);
+};
+
+// Call a hook on all plugins to transform an input
+PluginsManager.prototype.hook = function(name, input) {
+    return Promise.reduce(this.plugins, function(current, plugin) {
+        return plugin.hook(name, current);
+    }, input);
+};
+
+// Extract all resources for a namespace
+PluginsManager.prototype.getResources = function(namespace) {
+    return Promise.reduce(this.plugins, function(out, plugin) {
+        return plugin.getResources(namespace)
+        .then(function(pluginResources) {
+            _.each(BookPlugin.RESOURCES, function(resourceType) {
+                out[resourceType] = (out[resourceType] || []).concat(pluginResources[resourceType] || []);
+            });
+
+            return out;
+        });
+    }, {});
+};
+
+// Copy all resources for a plugin
+PluginsManager.prototype.copyResources = function(namespace, outputRoot) {
+    return Promise.serie(this.plugins, function(plugin) {
+        return plugin.getResources(namespace)
+        .then(function(resources) {
+            if (!resources.assets) return;
+
+            var input = path.resolve(plugin.root, resources.assets);
+            var output = path.resolve(outputRoot, plugin.npmId);
+
+            return fs.copyDir(input, output);
+        });
+    });
+};
+
+// Get all filters and blocks
+PluginsManager.prototype.getFilters = function() {
+    return _.reduce(this.plugins, function(out, plugin) {
+        var filters = plugin.getFilters();
+
+        return _.extend(out, filters);
+    }, {});
+};
+PluginsManager.prototype.getBlocks = function() {
+    return _.reduce(this.plugins, function(out, plugin) {
+        var blocks = plugin.getBlocks();
+
+        return _.extend(out, blocks);
+    }, {});
+};
+
+module.exports = PluginsManager;
diff --git a/lib/plugins/plugin.js b/lib/plugins/plugin.js
new file mode 100644
index 0000000..f678111
--- /dev/null
+++ b/lib/plugins/plugin.js
@@ -0,0 +1,300 @@
+var _ = require('lodash');
+var path = require('path');
+var url = require('url');
+var resolve = require('resolve');
+var mergeDefaults = require('merge-defaults');
+var jsonschema = require('jsonschema');
+var jsonSchemaDefaults = require('json-schema-defaults');
+
+var Promise = require('../utils/promise');
+var error = require('../utils/error');
+var gitbook = require('../gitbook');
+var registry = require('./registry');
+var compatibility = require('./compatibility');
+
+var HOOKS = [
+    'init', 'finish', 'finish:before', 'config', 'page', 'page:before'
+];
+
+var RESOURCES = ['js', 'css'];
+
+// Return true if an error is a "module not found"
+// Wait on https://github.com/substack/node-resolve/pull/81 to be merged
+function isModuleNotFound(err) {
+    return err.message.indexOf('Cannot find module') >= 0;
+}
+
+function BookPlugin(book, pluginId) {
+    this.book = book;
+    this.log = this.book.log.prefix(pluginId);
+
+    this.id = pluginId;
+    this.npmId = registry.npmId(pluginId);
+    this.root;
+
+    this.packageInfos = undefined;
+    this.content = undefined;
+
+    // Cache for resources
+    this._resources = {};
+
+    _.bindAll(this);
+}
+
+// Return true if plugin has been loaded correctly
+BookPlugin.prototype.isLoaded = function() {
+    return Boolean(this.packageInfos && this.content);
+};
+
+// Bind a function to the plugin's context
+BookPlugin.prototype.bind = function(fn) {
+    return fn.bind(compatibility.pluginCtx(this));
+};
+
+// Load this plugin
+// An optional folder to search in can be passed
+BookPlugin.prototype.load = function(folder) {
+    var that = this;
+
+    if (this.isLoaded()) {
+        return Promise.reject(new Error('Plugin "' + this.id + '" is already loaded'));
+    }
+
+    // Fodlers to search plugins in
+    var searchPaths = _.compact([
+        folder,
+        this.book.resolve('node_modules'),
+        __dirname
+    ]);
+
+    // Try loading plugins from different location
+    var p = Promise.some(searchPaths, function(baseDir) {
+        // Locate plugin and load pacjage.json
+        try {
+            var res = resolve.sync(that.npmId + '/package.json', { basedir: baseDir });
+
+            that.root = path.dirname(res);
+            that.packageInfos = require(res);
+        } catch (err) {
+            if (!isModuleNotFound(err)) throw err;
+
+            that.packageInfos = undefined;
+            that.content = undefined;
+
+            return false;
+        }
+
+        // Load plugin JS content
+        try {
+            that.content = require(resolve.sync(that.npmId, { basedir: baseDir }));
+        } catch(err) {
+            // It's no big deal if the plugin doesn't have an "index.js"
+            // (For example: themes)
+            if (isModuleNotFound(err)) {
+                that.content = {};
+            } else {
+                throw new error.PluginError(err, {
+                    plugin: that.id
+                });
+            }
+        }
+
+        return true;
+    })
+
+    .then(that.validate)
+
+    // Validate the configuration and update it
+    .then(function() {
+        var config = that.book.config.get(that.getConfigKey(), {});
+        return that.validateConfig(config);
+    })
+    .then(function(config) {
+        that.book.config.set(that.getConfigKey(), config);
+    });
+
+    this.log.info('loading plugin "' + this.id + '"... ');
+    return this.log.info.promise(p);
+};
+
+// Verify the definition of a plugin
+// Also verify that the plugin accepts the current gitbook version
+// This method throws erros if plugin is invalid
+BookPlugin.prototype.validate = function() {
+    var isValid = (
+        this.packageInfos &&
+        this.packageInfos.name &&
+        this.packageInfos.engines &&
+        this.packageInfos.engines.gitbook
+    );
+
+    if (!this.isLoaded()) {
+        throw new Error('Couldn\'t locate plugin "' + this.id + '", Run \'gitbook install\' to install plugins from registry.');
+    }
+
+    if (!isValid) {
+        throw new Error('Invalid plugin "' + this.id + '"');
+    }
+
+    if (!gitbook.satisfies(this.packageInfos.engines.gitbook)) {
+        throw new Error('GitBook doesn\'t satisfy the requirements of this plugin: '+this.packageInfos.engines.gitbook);
+    }
+};
+
+// Normalize, validate configuration for this plugin using its schema
+// Throw an error when shcema is not respected
+BookPlugin.prototype.validateConfig = function(config) {
+    var that = this;
+
+    return Promise()
+    .then(function() {
+        var schema = that.packageInfos.gitbook || {};
+        if (!schema) return config;
+
+        // Normalize schema
+        schema.id = '/'+that.getConfigKey();
+        schema.type = 'object';
+
+        // Validate and throw if invalid
+        var v = new jsonschema.Validator();
+        var result = v.validate(config, schema, {
+            propertyName: that.getConfigKey()
+        });
+
+        // Throw error
+        if (result.errors.length > 0) {
+            throw new error.ConfigurationError(new Error(result.errors[0].stack));
+        }
+
+        // Insert default values
+        var defaults = jsonSchemaDefaults(schema);
+        return mergeDefaults(config, defaults);
+    });
+};
+
+// Return key for configuration
+BookPlugin.prototype.getConfigKey = function() {
+    return 'pluginsConfig.'+this.id;
+};
+
+// Call a hook and returns its result
+BookPlugin.prototype.hook = function(name, input) {
+    var that = this;
+    var hookFunc = this.content.hooks? this.content.hooks[name] : null;
+    input = input || {};
+
+    if (!hookFunc) return Promise(input);
+
+    this.book.log.debug.ln('call hook "' + name + '" for plugin "' + this.id + '"');
+    if (!_.contains(HOOKS, name)) {
+        this.book.log.warn.ln('hook "'+name+'" used by plugin "'+this.name+'" is deprecated, and will be removed in the coming versions');
+    }
+
+    return Promise()
+    .then(function() {
+        return that.bind(hookFunc)(input);
+    });
+};
+
+// Return resources without normalization
+BookPlugin.prototype._getResources = function(base) {
+    var that = this;
+
+    return Promise()
+    .then(function() {
+        if (that._resources[base]) return that._resources[base];
+
+        base = base;
+        var book = that.content[base];
+
+        // Compatibility with version 1.x.x
+        if (base == 'website') book = book || that.content.book;
+
+        // Nothing specified, fallback to default
+        if (!book) {
+            return Promise({});
+        }
+
+        // Dynamic function
+        if(typeof book === 'function') {
+            // Call giving it the context of our book
+            return that.bind(book)();
+        }
+
+        // Plain data object
+        return book;
+    })
+
+    .then(function(resources) {
+        that._resources[base] = resources;
+        return _.cloneDeep(resources);
+    });
+};
+
+// Normalize a specific resource
+BookPlugin.prototype.normalizeResource = function(resource) {
+    // Parse the resource path
+    var parsed = url.parse(resource);
+
+    // This is a remote resource
+    // so we will simply link to using it's URL
+    if (parsed.protocol) {
+        return {
+            'url': resource
+        };
+    }
+
+    // This will be copied over from disk
+    // and shipped with the book's build
+    return { 'path': this.npmId+'/'+resource };
+};
+
+
+// Normalize resources and return them
+BookPlugin.prototype.getResources = function(base) {
+    var that = this;
+
+    return this._getResources(base)
+    .then(function(resources) {
+        _.each(RESOURCES, function(resourceType) {
+            resources[resourceType] = _.map(resources[resourceType] || [], that.normalizeResource);
+        });
+
+        return resources;
+    });
+};
+
+// Normalize filters and return them
+BookPlugin.prototype.getFilters = function() {
+    var that = this;
+
+    return _.mapValues(this.content.filters || {}, function(fn, filter) {
+        return function() {
+            var ctx = _.extend(compatibility.pluginCtx(that), this);
+
+            return fn.apply(ctx, arguments);
+        };
+    });
+};
+
+// Normalize blocks and return them
+BookPlugin.prototype.getBlocks = function() {
+    var that = this;
+
+    return _.mapValues(this.content.blocks || {}, function(block, blockName) {
+        block = _.isFunction(block)? { process: block } : block;
+
+        var fn = block.process;
+        block.process = function() {
+            var ctx = _.extend(compatibility.pluginCtx(that), this);
+
+            return fn.apply(ctx, arguments);
+        };
+
+        return block;
+    });
+};
+
+module.exports = BookPlugin;
+module.exports.RESOURCES = RESOURCES;
+
diff --git a/lib/plugins/registry.js b/lib/plugins/registry.js
new file mode 100644
index 0000000..837c9b5
--- /dev/null
+++ b/lib/plugins/registry.js
@@ -0,0 +1,115 @@
+var npm = require('npm');
+var npmi = require('npmi');
+var semver = require('semver');
+var _ = require('lodash');
+
+var Promise = require('../utils/promise');
+var gitbook = require('../gitbook');
+
+var PLUGIN_PREFIX = 'gitbook-plugin-';
+
+// Return an absolute name for the plugin (the one on NPM)
+function npmId(name) {
+    if (name.indexOf(PLUGIN_PREFIX) === 0) return name;
+    return [PLUGIN_PREFIX, name].join('');
+}
+
+// Return a plugin ID 9the one on GitBook
+function pluginId(name) {
+    return name.replace(PLUGIN_PREFIX, '');
+}
+
+// Validate an NPM plugin ID
+function validateId(name) {
+    return name.indexOf(PLUGIN_PREFIX) === 0;
+}
+
+// Initialize NPM for operations
+var initNPM = _.memoize(function() {
+    return Promise.nfcall(npm.load, {
+        silent: true,
+        loglevel: 'silent'
+    });
+});
+
+// Link a plugin for use in a specific book
+function linkPlugin(book, pluginPath) {
+    book.log('linking', pluginPath);
+}
+
+// Resolve the latest version for a plugin
+function resolveVersion(plugin) {
+    var npnName = npmId(plugin);
+
+    return initNPM()
+    .then(function() {
+        return Promise.nfcall(npm.commands.view, [npnName+'@*', 'engines'], true);
+    })
+    .then(function(versions) {
+        return _.chain(versions)
+            .pairs()
+            .map(function(v) {
+                return {
+                    version: v[0],
+                    gitbook: (v[1].engines || {}).gitbook
+                };
+            })
+            .filter(function(v) {
+                return v.gitbook && gitbook.satisfies(v.gitbook);
+            })
+            .sort(function(v1, v2) {
+                return semver.lt(v1.version, v2.version)? 1 : -1;
+            })
+            .pluck('version')
+            .first()
+            .value();
+    });
+}
+
+
+// Install a plugin in a book
+function installPlugin(book, plugin, version) {
+    book.log.info.ln('installing plugin', plugin);
+
+    var npnName = npmId(plugin);
+
+    return Promise()
+    .then(function() {
+        if (version) return version;
+
+        book.log.info.ln('No version specified, resolve plugin "' + plugin + '"');
+        return resolveVersion(plugin);
+    })
+
+    // Install the plugin with the resolved version
+    .then(function(version) {
+        if (!version) {
+            throw new Error('Found no satisfactory version for plugin "' + plugin + '"');
+        }
+
+        book.log.info.ln('install plugin' + plugin +'" from npm ('+npnName+') with version', version);
+        return Promise.nfcall(npmi, {
+            'name': npnName,
+            'version': version,
+            'path': book.root,
+            'npmLoad': {
+                'loglevel': 'silent',
+                'loaded': true,
+                'prefix': book.root
+            }
+        });
+    })
+    .then(function() {
+        book.log.info.ok('plugin "' + plugin + '" installed with success');
+    });
+}
+
+module.exports = {
+    npmId: npmId,
+    pluginId: pluginId,
+    validateId: validateId,
+
+    resolve: resolveVersion,
+    link: linkPlugin,
+    install: installPlugin
+};
diff --git a/lib/pluginslist.js b/lib/pluginslist.js
deleted file mode 100644
index 290cd35..0000000
--- a/lib/pluginslist.js
+++ /dev/null
@@ -1,230 +0,0 @@
-var _ = require('lodash');
-var Q = require('q');
-var npmi = require('npmi');
-var npm = require('npm');
-var semver = require('semver');
-
-var Plugin = require('./plugin');
-var version = require('./version');
-
-var initNPM = _.memoize(function() {
-    return Q.nfcall(npm.load, { silent: true, loglevel: 'silent' });
-});
-
-
-var PluginsList = function(book, plugins) {
-    this.book = book;
-    this.log = this.book.log;
-
-    // List of Plugin objects
-    this.list = [];
-
-    // List of names of failed plugins
-    this.failed = [];
-
-    // Namespaces
-    this.namespaces = _.chain(['website', 'ebook'])
-        .map(function(namespace) {
-            return [
-                namespace,
-                {
-                    html: {},
-                    resources: _.chain(Plugin.RESOURCES)
-                        .map(function(type) {
-                            return [type, []];
-                        })
-                        .object()
-                        .value()
-                }
-            ];
-        })
-        .object()
-        .value();
-
-    // Bind methods
-    _.bindAll(this);
-
-    if (plugins) this.load(plugins);
-};
-
-// return count of plugins
-PluginsList.prototype.count = function() {
-    return this.list.length;
-};
-
-// Add and load a plugin
-PluginsList.prototype.load = function(plugin) {
-    var that = this;
-
-    if (_.isArray(plugin)) {
-        return _.reduce(plugin, function(prev, p) {
-            return prev.then(function() {
-                return that.load(p);
-            });
-        }, Q());
-    }
-    if (_.isObject(plugin) && !(plugin instanceof Plugin)) plugin = plugin.name;
-    if (_.isString(plugin)) plugin = new Plugin(this.book, plugin);
-
-    that.log.info('load plugin', plugin.name, '....');
-    if (!plugin.isValid()) {
-        that.log.info.fail();
-        that.failed.push(plugin.name);
-        return Q();
-    } else {
-        that.log.info.ok();
-
-        // Push in the list
-        that.list.push(plugin);
-    }
-
-    return Q()
-
-    // Validate and normalize configuration
-    .then(function() {
-        var config = plugin.getConfig();
-        return plugin.validateConfig(config);
-    })
-    .then(function(config) {
-        // Update configuration
-        plugin.setConfig(config);
-
-        // Extract filters
-        that.book.template.addFilters(plugin.getFilters());
-
-        // Extract blocks
-        that.book.template.addBlocks(plugin.getBlocks());
-
-        return _.reduce(_.keys(that.namespaces), function(prev, namespaceName) {
-            return prev.then(function() {
-                return plugin.getResources(namespaceName)
-                .then(function(plResources) {
-                    var namespace = that.namespaces[namespaceName];
-
-                    // Extract js and css
-                    _.each(Plugin.RESOURCES, function(resourceType) {
-                        namespace.resources[resourceType] = (namespace.resources[resourceType] || []).concat(plResources[resourceType] || []);
-                    });
-
-                    // Map of html resources by name added by each plugin
-                    _.each(plResources.html || {}, function(value, tag) {
-                        // Turn into function if not one already
-                        if (!_.isFunction(value)) value = _.constant(value);
-
-                        namespace.html[tag] = namespace.html[tag] || [];
-                        namespace.html[tag].push(value);
-                    });
-                });
-            });
-        }, Q());
-    });
-};
-
-// Call a hook
-PluginsList.prototype.hook = function(name, data) {
-    return _.reduce(this.list, function(prev, plugin) {
-        return prev.then(function(ret) {
-            return plugin.callHook(name, ret);
-        });
-    }, Q(data));
-};
-
-// Return a template from a plugin
-PluginsList.prototype.template = function(name) {
-    var withTpl = _.find(this.list, function(plugin) {
-        return (
-            plugin.infos.templates &&
-            plugin.infos.templates[name]
-        );
-    });
-
-    if (!withTpl) return null;
-    return withTpl.resolveFile(withTpl.infos.templates[name]);
-};
-
-// Return an html snippet
-PluginsList.prototype.html = function(namespace, tag, context, options) {
-    var htmlSnippets = this.namespaces[namespace].html[tag];
-    return _.map(htmlSnippets || [], function(code) {
-        return code.call(context, options);
-    }).join('\n');
-};
-
-// Return a resources map for a namespace
-PluginsList.prototype.resources = function(namespace) {
-    return this.namespaces[namespace].resources;
-};
-
-// Install plugins from a book
-PluginsList.prototype.install = function() {
-    var that = this;
-
-    // Remove defaults (no need to install)
-    var plugins = _.reject(that.book.options.plugins, {
-        isDefault: true
-    });
-
-    // Install plugins one by one
-    that.book.log.info.ln(plugins.length+' plugins to install');
-    return _.reduce(plugins, function(prev, plugin) {
-        return prev.then(function() {
-            var fullname = 'gitbook-plugin-'+plugin.name;
-
-            return Q()
-
-            // Resolve version if needed
-            .then(function() {
-                if (plugin.version) return plugin.version;
-
-                that.book.log.info.ln('No version specified, resolve plugin', plugin.name);
-                return initNPM()
-                .then(function() {
-                    return Q.nfcall(npm.commands.view, [fullname+'@*', 'engines'], true);
-                })
-                .then(function(versions) {
-                    return _.chain(versions)
-                        .pairs()
-                        .map(function(v) {
-                            return {
-                                version: v[0],
-                                gitbook: (v[1].engines || {}).gitbook
-                            };
-                        })
-                        .filter(function(v) {
-                            return v.gitbook && version.satisfies(v.gitbook);
-                        })
-                        .sort(function(v1, v2) {
-                            return semver.lt(v1.version, v2.version)? 1 : -1;
-                        })
-                        .pluck('version')
-                        .first()
-                        .value();
-                });
-            })
-
-            // Install the plugin with the resolved version
-            .then(function(version) {
-                if (!version) {
-                    throw 'Found no satisfactory version for plugin '+plugin.name;
-                }
-
-                that.book.log.info.ln('install plugin', plugin.name, 'from npm ('+fullname+') with version', version);
-                return Q.nfcall(npmi, {
-                    'name': fullname,
-                    'version': version,
-                    'path': that.book.root,
-                    'npmLoad': {
-                        'loglevel': 'silent',
-                        'loaded': true,
-                        'prefix': that.book.root
-                    }
-                });
-            })
-            .then(function() {
-                that.book.log.info.ok('plugin', plugin.name, 'installed with success');
-            });
-        });
-    }, Q());
-};
-
-module.exports = PluginsList;
diff --git a/lib/blocks.js b/lib/template/blocks.js
index 92097a7..a079cde 100644
--- a/lib/blocks.js
+++ b/lib/template/blocks.js
@@ -6,6 +6,11 @@ module.exports = {
     html: _.identity,
 
     // Highlight a code block
-    // This block can be extent by plugins
-    code: _.identity
+    // This block can be replaced by plugins
+    code: function(blk) {
+        return {
+            html: false,
+            body: blk.body
+        };
+    }
 };
diff --git a/lib/template/filters.js b/lib/template/filters.js
new file mode 100644
index 0000000..ac68b82
--- /dev/null
+++ b/lib/template/filters.js
@@ -0,0 +1,15 @@
+var moment = require('moment');
+
+
+module.exports = {
+    // Format a date
+    // ex: 'MMMM Do YYYY, h:mm:ss a
+    date: function(time, format) {
+        return moment(time).format(format);
+    },
+
+    // Relative Time
+    dateFromNow: function(time) {
+        return moment(time).fromNow();
+    }
+};
diff --git a/lib/template.js b/lib/template/index.js
index dac1201..fc7603d 100644
--- a/lib/template.js
+++ b/lib/template/index.js
@@ -1,47 +1,42 @@
 var _ = require('lodash');
-var Q = require('q');
 var path = require('path');
 var nunjucks = require('nunjucks');
-var parsers = require('gitbook-parsers');
 var escapeStringRegexp = require('escape-string-regexp');
 
-var batch = require('./utils/batch');
-var pkg = require('../package.json');
+var Promise = require('../utils/promise');
+var error = require('../utils/error');
+var parsers = require('../parsers');
 var defaultBlocks = require('./blocks');
-var BookLoader = require('./conrefs_loader');
+var defaultFilters = require('./filters');
+var Loader = require('./loader');
 
-// Normalize result from a block
+// Return extension name for a specific block
+function blockExtName(name) {
+    return 'Block'+name+'Extension';
+}
+
+// Normalize the result of block process function
 function normBlockResult(blk) {
     if (_.isString(blk)) blk = { body: blk };
     return blk;
 }
 
-
-var TemplateEngine = function(book) {
-    var that = this;
-
-    this.book = book;
+function TemplateEngine(output) {
+    this.output = output;
+    this.book = output.book;
     this.log = this.book.log;
 
-    // Template loader
-    this.loader = new BookLoader(book, {
-        // Replace shortcuts in imported files
-        interpolate: function(filepath, source) {
-            var parser = parsers.get(path.extname(filepath));
-            var type = parser? parser.name : null;
-
-            return  that.applyShortcuts(type, source);
-        }
-    });
+    // Create file loader
+    this.loader = new Loader(this);
 
-    // Nunjucks env
+    // Create nunjucks instance
     this.env = new nunjucks.Environment(
         this.loader,
         {
-            // Escaping is done after by the markdown parser
+            // Escaping is done after by the asciidoc/markdown parser
             autoescape: false,
 
-            // Tags
+            // Syntax
             tags: {
                 blockStart: '{%',
                 blockEnd: '%}',
@@ -65,79 +60,48 @@ var TemplateEngine = function(book) {
     // Bind methods
     _.bindAll(this);
 
-    // Add default blocks
+    // Add default blocks and filters
     this.addBlocks(defaultBlocks);
-};
-
-// Process the result of block in a context
-TemplateEngine.prototype.processBlock = function(blk) {
-    blk = _.defaults(blk, {
-        parse: false,
-        post: undefined
-    });
-    blk.id = _.uniqueId('blk');
-
-    var toAdd = (!blk.parse) || (blk.post !== undefined);
-
-    // Add to global map
-    if (toAdd) this.blockBodies[blk.id] = blk;
-
-    // Parsable block, just return it
-    if (blk.parse) {
-        return blk.body;
-    }
-
-    // Return it as a position marker
-    return '@%@'+blk.id+'@%@';
-};
-
-// Replace position markers of blocks by body after processing
-// This is done to avoid that markdown/asciidoc processer parse the block content
-TemplateEngine.prototype.replaceBlocks = function(content) {
-    var that = this;
-
-    return content.replace(/\@\%\@([\s\S]+?)\@\%\@/g, function(match, key) {
-        var blk = that.blockBodies[key];
-        if (!blk) return match;
-
-        var body = blk.body;
-
-        return body;
-    });
-};
+    this.addFilters(defaultFilters);
+}
 
 // Bind a function to a context
+// Filters and blocks are binded to this context
 TemplateEngine.prototype.bindContext = function(func) {
-    var that = this;
+    var ctx = {
+        ctx: this.ctx,
+        output: this.output,
+        generator: this.output.name
+    };
 
-    return function() {
-        var ctx = {
-            ctx: this.ctx,
-            book: that.book,
-            generator: that.book.options.generator
-        };
+    return _.bind(func, ctx);
+};
 
-        return func.apply(ctx, arguments);
-    };
+// Interpolate a string content to replace shortcuts according to the filetype
+TemplateEngine.prototype.interpolate = function(filepath, source) {
+    var parser = parsers.get(path.extname(filepath));
+    var type = parser? parser.name : null;
+
+    return this.applyShortcuts(type, source);
 };
 
-// Add filter
+// Add a new custom filter
 TemplateEngine.prototype.addFilter = function(filterName, func) {
     try {
         this.env.getFilter(filterName);
-        this.log.warn.ln('conflict in filters, \''+filterName+'\' is already set');
+        this.log.error.ln('conflict in filters, "'+filterName+'" is already set');
         return false;
     } catch(e) {
         // Filter doesn't exist
     }
 
-    this.log.debug.ln('add filter \''+filterName+'\'');
+    this.log.debug.ln('add filter "'+filterName+'"');
     this.env.addFilter(filterName, this.bindContext(function() {
         var ctx = this;
         var args = Array.prototype.slice.apply(arguments);
         var callback = _.last(args);
 
-        Q()
+        Promise()
         .then(function() {
             return func.apply(ctx, args.slice(0, -1));
         })
@@ -146,29 +110,24 @@ TemplateEngine.prototype.addFilter = function(filterName, func) {
     return true;
 };
 
-// Add multiple filters
+// Add multiple filters at once
 TemplateEngine.prototype.addFilters = function(filters) {
     _.each(filters, function(filter, name) {
         this.addFilter(name, filter);
     }, this);
 };
 
-// Return nunjucks extension name of a block
-TemplateEngine.prototype.blockExtName = function(name) {
-    return 'Block'+name+'Extension';
-};
-
-// Test if a block is defined
+// Return true if a block is defined
 TemplateEngine.prototype.hasBlock = function(name) {
-    return this.env.hasExtension(this.blockExtName(name));
+    return this.env.hasExtension(blockExtName(name));
 };
 
-// Remove a block
+// Remove/Disable a block
 TemplateEngine.prototype.removeBlock = function(name) {
     if (!this.hasBlock(name)) return;
 
     // Remove nunjucks extension
-    this.env.removeExtension(this.blockExtName(name));
+    this.env.removeExtension(blockExtName(name));
 
     // Cleanup shortcuts
     this.shortcuts = _.reject(this.shortcuts, {
@@ -177,22 +136,27 @@ TemplateEngine.prototype.removeBlock = function(name) {
 };
 
 // Add a block
+// Using the extensions of nunjucks: https://mozilla.github.io/nunjucks/api.html#addextension
 TemplateEngine.prototype.addBlock = function(name, block) {
     var that = this, Ext, extName;
 
+    // Block can be a simple function
     if (_.isFunction(block)) block = { process: block };
 
     block = _.defaults(block || {}, {
         shortcuts: [],
         end: 'end'+name,
-        process: _.identity,
         blocks: []
     });
 
-    extName = this.blockExtName(name);
+    extName = blockExtName(name);
+
+    if (!block.process) {
+        throw new Error('Invalid block "' + name + '", it should have a "process" method');
+    }
 
     if (this.hasBlock(name) && !defaultBlocks[name]) {
-        this.log.warn.ln('conflict in blocks, \''+name+'\' is already defined');
+        this.log.warn.ln('conflict in blocks, "'+name+'" is already defined');
     }
 
     // Cleanup previous block
@@ -215,7 +179,7 @@ TemplateEngine.prototype.addBlock = function(name, block) {
             var args = parser.parseSignature(null, true);
             parser.advanceAfterBlockEnd(tok.value);
 
-            while (1) {
+            do {
                 // Read body
                 var currentBody = parser.parseUntilBlocks.apply(parser, allBlocks);
 
@@ -232,14 +196,14 @@ TemplateEngine.prototype.addBlock = function(name, block) {
 
                 // Read new block
                 lastBlockName = parser.peekToken().value;
-                if (lastBlockName == block.end) {
-                    break;
-                }
 
                 // Parse signature and move to the end of the block
-                lastBlockArgs = parser.parseSignature(null, true);
-                parser.advanceAfterBlockEnd(lastBlockName);
-            }
+                if (lastBlockName != block.end) {
+                    lastBlockArgs = parser.parseSignature(null, true);
+                    parser.advanceAfterBlockEnd(lastBlockName);
+                }
+            } while (lastBlockName != block.end)
+
             parser.advanceAfterBlockEnd();
 
             var bodies = [body];
@@ -282,7 +246,7 @@ TemplateEngine.prototype.addBlock = function(name, block) {
                 };
             });
 
-            Q()
+            Promise()
             .then(function() {
                 return that.applyBlock(name, {
                     body: body(),
@@ -292,7 +256,7 @@ TemplateEngine.prototype.addBlock = function(name, block) {
                 }, context);
             })
 
-            // process the block returned
+            // Process the block returned
             .then(that.processBlock)
             .nodeify(callback);
         };
@@ -301,10 +265,13 @@ TemplateEngine.prototype.addBlock = function(name, block) {
     // Add the Extension
     this.env.addExtension(extName, new Ext());
 
-    // Add shortcuts
-    if (!_.isArray(block.shortcuts)) block.shortcuts = [block.shortcuts];
+    // Add shortcuts if any
+    if (!_.isArray(block.shortcuts)) {
+        block.shortcuts = [block.shortcuts];
+    }
+
     _.each(block.shortcuts, function(shortcut) {
-        this.log.debug.ln('add template shortcut from \''+shortcut.start+'\' to block \''+name+'\' for parsers ', shortcut.parsers);
+        this.log.debug.ln('add template shortcut from "'+shortcut.start+'" to block "'+name+'" for parsers ', shortcut.parsers);
         this.shortcuts.push({
             block: name,
             parsers: shortcut.parsers,
@@ -318,7 +285,7 @@ TemplateEngine.prototype.addBlock = function(name, block) {
     }, this);
 };
 
-// Add multiple blocks
+// Add multiple blocks at once
 TemplateEngine.prototype.addBlocks = function(blocks) {
     _.each(blocks, function(block, name) {
         this.addBlock(name, block);
@@ -331,7 +298,7 @@ TemplateEngine.prototype.applyBlock = function(name, blk, ctx) {
     var func, block, r;
 
     block = this.blocks[name];
-    if (!block) throw new Error('Block not found \''+name+'\'');
+    if (!block) throw new Error('Block not found "'+name+'"');
     if (_.isString(blk)) {
         blk = {
             body: blk
@@ -348,116 +315,114 @@ TemplateEngine.prototype.applyBlock = function(name, blk, ctx) {
     func = this.bindContext(block.process);
     r = func.call(ctx || {}, blk);
 
-    if (Q.isPromise(r)) return r.then(normBlockResult);
+    if (Promise.isPromise(r)) return r.then(normBlockResult);
     else return normBlockResult(r);
 };
 
-// Apply a shortcut to a string
-TemplateEngine.prototype._applyShortcut = function(parser, content, shortcut) {
-    if (!_.contains(shortcut.parsers, parser)) return content;
-    var regex = new RegExp(
-        escapeStringRegexp(shortcut.start) + '([\\s\\S]*?[^\\$])' + escapeStringRegexp(shortcut.end),
-       'g'
-    );
-    return content.replace(regex, function(all, match) {
-        return '{% '+shortcut.tag.start+' %}'+ match + '{% '+shortcut.tag.end+' %}';
+// Process the result of block in a context
+TemplateEngine.prototype.processBlock = function(blk) {
+    blk = _.defaults(blk, {
+        parse: false,
+        post: undefined
     });
-};
+    blk.id = _.uniqueId('blk');
 
-// Apply all shortcuts to some template string
-TemplateEngine.prototype.applyShortcuts = function(type, content) {
-    return _.reduce(this.shortcuts, _.partial(this._applyShortcut.bind(this), type), content);
-};
+    var toAdd = (!blk.parse) || (blk.post !== undefined);
 
-// Render a string from the book
-TemplateEngine.prototype.renderString = function(content, context, options) {
-    context = _.extend({}, context, {
-        // Variables from book.json
-        book: this.book.options.variables,
+    // Add to global map
+    if (toAdd) this.blockBodies[blk.id] = blk;
 
-        // Complete book.json
-        config: this.book.options,
+    // Parsable block, just return it
+    if (blk.parse) {
+        return blk.body;
+    }
 
-        // infos about gitbook
-        gitbook: {
-            version: pkg.version,
-            generator: this.book.options.generator
-        }
-    });
+    // Return it as a position marker
+    return '@%@'+blk.id+'@%@';
+};
+
+// Render a string (without post processing)
+TemplateEngine.prototype.render = function(content, context, options) {
     options = _.defaults(options || {}, {
-        path: null,
-        type: null
+        path: null
     });
-    if (options.path) options.path = this.book.resolve(options.path);
-    if (!options.type && options.path) {
-        var parser = parsers.get(path.extname(options.path));
-        options.type = parser? parser.name : null;
+    var filename = options.path;
+
+    // Setup path and type
+    if (options.path) {
+        options.path = this.book.resolve(options.path);
     }
 
     // Replace shortcuts
     content = this.applyShortcuts(options.type, content);
 
-    return Q.nfcall(this.env.renderString.bind(this.env), content, context, options)
+    return Promise.nfcall(this.env.renderString.bind(this.env), content, context, options)
     .fail(function(err) {
-        if (_.isString(err)) err = new Error(err);
-        err.message = err.message.replace(/^Error: /, '');
-
-        throw err;
+        throw error.TemplateError(err, {
+            filename: filename || '<inline>'
+        });
     });
 };
 
-// Render a file from the book
-TemplateEngine.prototype.renderFile = function(filename) {
-    var that = this;
+// Render a string with post-processing
+TemplateEngine.prototype.renderString = function(content, context, options) {
+    return this.render(content, context, options)
+    .then(this.postProcess);
+};
 
-    return that.book.readFile(filename)
-    .then(function(content) {
-        return that.renderString(content, {}, {
-            path: filename
-        });
+// Apply a shortcut to a string
+TemplateEngine.prototype.applyShortcut = function(content, shortcut) {
+    var regex = new RegExp(
+        escapeStringRegexp(shortcut.start) + '([\\s\\S]*?[^\\$])' + escapeStringRegexp(shortcut.end),
+       'g'
+    );
+    return content.replace(regex, function(all, match) {
+        return '{% '+shortcut.tag.start+' %}'+ match + '{% '+shortcut.tag.end+' %}';
     });
 };
 
-// Render a page from the book
-TemplateEngine.prototype.renderPage = function(page) {
+// Replace position markers of blocks by body after processing
+// This is done to avoid that markdown/asciidoc processer parse the block content
+TemplateEngine.prototype.replaceBlocks = function(content) {
     var that = this;
 
-    return that.book.statFile(page.path)
-    .then(function(stat) {
-        var context = {
-            // infos about the file
-            file: {
-                path: page.path,
-                mtime: stat.mtime
-            }
-        };
+    return content.replace(/\@\%\@([\s\S]+?)\@\%\@/g, function(match, key) {
+        var blk = that.blockBodies[key];
+        if (!blk) return match;
 
-        return that.renderString(page.content, context, {
-            path: page.path,
-            type: page.type
-        });
+        var body = blk.body;
+
+        return body;
     });
 };
 
+// Apply all shortcuts to a template
+TemplateEngine.prototype.applyShortcuts = function(type, content) {
+    return _.chain(this.shortcuts)
+        .filter(function(shortcut) {
+            return _.contains(shortcut.parsers, type);
+        })
+        .reduce(this.applyShortcut, content)
+        .value();
+};
+
+
 // Post process content
 TemplateEngine.prototype.postProcess = function(content) {
     var that = this;
 
-    return Q(content)
+    return Promise(content)
     .then(that.replaceBlocks)
     .then(function(_content) {
-        return batch.execEach(that.blockBodies, {
-            max: 20,
-            fn: function(blk, blkId) {
-                return Q()
-                .then(function() {
-                    if (!blk.post) return Q();
-                    return blk.post();
-                })
-                .then(function() {
-                    delete that.blockBodies[blkId];
-                });
-            }
+        return Promise.serie(that.blockBodies, function(blk, blkId) {
+            return Promise()
+            .then(function() {
+                if (!blk.post) return;
+                return blk.post();
+            })
+            .then(function() {
+                delete that.blockBodies[blkId];
+            });
         })
         .thenResolve(_content);
     });
diff --git a/lib/template/loader.js b/lib/template/loader.js
new file mode 100644
index 0000000..23d179a
--- /dev/null
+++ b/lib/template/loader.js
@@ -0,0 +1,42 @@
+var nunjucks = require('nunjucks');
+var location = require('../utils/location');
+
+/*
+Simple nunjucks loader which is passing the reponsability to the Output
+*/
+
+var Loader = nunjucks.Loader.extend({
+    async: true,
+
+    init: function(engine, opts) {
+        this.engine = engine;
+        this.output = engine.output;
+    },
+
+    getSource: function(sourceURL, callback) {
+        var that = this;
+
+        this.output.onGetTemplate(sourceURL)
+        .then(function(out) {
+            // We disable cache since content is modified (shortcuts, ...)
+            out.noCache = true;
+
+            // Transform template before runnign it
+            out.source = that.engine.interpolate(out.path, out.source);
+
+            return out;
+        })
+        .nodeify(callback);
+    },
+
+    resolve: function(from, to) {
+        return this.output.onResolveTemplate(from, to);
+    },
+
+    // Handle all files as relative, so that nunjucks pass responsability to 'resolve'
+    isRelative: function(filename) {
+        return location.isRelative(filename);
+    }
+});
+
+module.exports = Loader;
diff --git a/lib/utils/batch.js b/lib/utils/batch.js
deleted file mode 100644
index 9069766..0000000
--- a/lib/utils/batch.js
+++ /dev/null
@@ -1,52 +0,0 @@
-var Q = require("q");
-var _ = require("lodash");
-
-// Execute a method for all element
-function execEach(items, options) {
-    if (_.size(items) === 0) return Q();
-    var concurrents = 0, d = Q.defer(), pending = [];
-
-    options = _.defaults(options || {}, {
-        max: 100,
-        fn: function() {}
-    });
-
-
-    function startItem(item, i) {
-        if (concurrents >= options.max) {
-            pending.push([item, i]);
-            return;
-        }
-
-        concurrents++;
-        Q()
-        .then(function() {
-            return options.fn(item, i);
-        })
-        .then(function() {
-            concurrents--;
-
-            // Next pending
-            var next = pending.shift();
-
-            if (concurrents === 0 && !next) {
-                d.resolve();
-            } else if (next) {
-                startItem.apply(null, next);
-            }
-        })
-        .fail(function(err) {
-            pending = [];
-            d.reject(err);
-        });
-    }
-
-    _.each(items, startItem);
-
-    return d.promise;
-}
-
-module.exports = {
-    execEach: execEach
-};
-
diff --git a/lib/utils/command.js b/lib/utils/command.js
new file mode 100644
index 0000000..de240df
--- /dev/null
+++ b/lib/utils/command.js
@@ -0,0 +1,80 @@
+var _ = require('lodash');
+var childProcess = require('child_process');
+var spawn = require("spawn-cmd").spawn;
+var Promise = require('./promise');
+
+// Execute a command
+function exec(command, options) {
+    var d = Promise.defer();
+
+    var child = childProcess.exec(command, options, function(err, stdout, stderr) {
+        if (!err) {
+            return d.resolve();
+        }
+
+        err.message = stdout.toString('utf8') + stderr.toString('utf8');
+        d.reject(err);
+    });
+
+    child.stdout.on('data', function (data) {
+        d.notify(data);
+    });
+
+    child.stderr.on('data', function (data) {
+        d.notify(data);
+    });
+
+    return d.promise;
+}
+
+// Spawn an executable
+function spawnCmd(command, args, options) {
+    var d = Promise.defer();
+    var child = spawn(command, args, options);
+
+    child.on('error', function(error) {
+        return d.reject(error);
+    });
+
+    child.stdout.on('data', function (data) {
+        d.notify(data);
+    });
+
+    child.stderr.on('data', function (data) {
+        d.notify(data);
+    });
+
+    child.on('close', function(code) {
+        if (code === 0) {
+            d.resolve();
+        } else {
+            d.reject(new Error('Error with command "'+command+'"'));
+        }
+    });
+
+    return d.promise;
+}
+
+// Transform an option object to a command line string
+function escapeShellArg(s) {
+    s = s.replace(/"/g, '\\"');
+    return '"' + s + '"';
+}
+
+function optionsToShellArgs(options) {
+    return _.chain(options)
+    .map(function(value, key) {
+        if (value === null || value === undefined || value === false) return null;
+        if (value === true) return key;
+        return key + '=' + escapeShellArg(value);
+    })
+    .compact()
+    .value()
+    .join(' ');
+}
+
+module.exports = {
+    exec: exec,
+    spawn: spawnCmd,
+    optionsToShellArgs: optionsToShellArgs
+};
diff --git a/lib/utils/error.js b/lib/utils/error.js
new file mode 100644
index 0000000..27fa59d
--- /dev/null
+++ b/lib/utils/error.js
@@ -0,0 +1,105 @@
+var _ = require('lodash');
+var TypedError = require('error/typed');
+var WrappedError = require('error/wrapped');
+var deprecated = require('deprecated');
+
+var Logger = require('./logger');
+
+var log = new Logger();
+
+// Enforce as an Error object, and cleanup message
+function enforce(err) {
+    if (_.isString(err)) err = new Error(err);
+    err.message = err.message.replace(/^Error: /, '');
+
+    return err;
+}
+
+// Random error wrappers during parsing/generation
+var ParsingError = WrappedError({
+    message: 'Parsing Error: {origMessage}',
+    type: 'parse'
+});
+var OutputError = WrappedError({
+    message: 'Output Error: {origMessage}',
+    type: 'generate'
+});
+
+// A file does not exists
+var FileNotFoundError = TypedError({
+    type: 'file.not-found',
+    message: 'No "{filename}" file (or is ignored)',
+    filename: null
+});
+
+// A file is outside the scope
+var FileOutOfScopeError = TypedError({
+    type: 'file.out-of-scope',
+    message: '"{filename}" not in "{root}"',
+    filename: null,
+    root: null,
+    code: 'EACCESS'
+});
+
+// A file is outside the scope
+var RequireInstallError = TypedError({
+    type: 'install.required',
+    message: '"{cmd}" is not installed.\n{install}',
+    cmd: null,
+    code: 'ENOENT',
+    install: ''
+});
+
+// Error for nunjucks templates
+var TemplateError = WrappedError({
+    message: 'Error compiling template "{filename}": {origMessage}',
+    type: 'template',
+    filename: null
+});
+
+// Error for nunjucks templates
+var PluginError = WrappedError({
+    message: 'Error with plugin "{plugin}": {origMessage}',
+    type: 'plugin',
+    plugin: null
+});
+
+// Error with the book's configuration
+var ConfigurationError = WrappedError({
+    message: 'Error with book\'s configuration: {origMessage}',
+    type: 'configuration'
+});
+
+// Error during ebook generation
+var EbookError = WrappedError({
+    message: 'Error during ebook generation: {origMessage}\n{stdout}',
+    type: 'ebook',
+    stdout: ''
+});
+
+// Deprecate methods/fields
+function deprecateMethod(fn, msg) {
+    return deprecated.method(msg, log.warn.ln, fn);
+}
+function deprecateField(obj, prop, value, msg) {
+    return deprecated.field(msg, log.warn.ln, obj, prop, value);
+}
+
+module.exports = {
+    enforce: enforce,
+
+    ParsingError: ParsingError,
+    OutputError: OutputError,
+    RequireInstallError: RequireInstallError,
+
+    FileNotFoundError: FileNotFoundError,
+    FileOutOfScopeError: FileOutOfScopeError,
+
+    TemplateError: TemplateError,
+    PluginError: PluginError,
+    ConfigurationError: ConfigurationError,
+    EbookError: EbookError,
+
+    deprecateMethod: deprecateMethod,
+    deprecateField: deprecateField
+};
diff --git a/lib/utils/fs.js b/lib/utils/fs.js
index b82701f..42fd3c6 100644
--- a/lib/utils/fs.js
+++ b/lib/utils/fs.js
@@ -1,71 +1,36 @@
-var _ = require('lodash');
-var Q = require('q');
+var fs = require('graceful-fs');
+var mkdirp = require('mkdirp');
+var destroy = require('destroy');
+var rmdir = require('rmdir');
 var tmp = require('tmp');
+var request = require('request');
 var path = require('path');
-var fs = require('graceful-fs');
-var fsExtra = require('fs-extra');
-var Ignore = require('fstream-ignore');
-
-var fsUtils = {
-    tmp: {
-        file: function(opt) {
-            return Q.nfcall(tmp.file.bind(tmp), opt).get(0);
-        },
-        dir: function() {
-            return Q.nfcall(tmp.dir.bind(tmp)).get(0);
-        }
-    },
-    list: listFiles,
-    stat: Q.denodeify(fs.stat),
-    readdir: Q.denodeify(fs.readdir),
-    readFile: Q.denodeify(fs.readFile),
-    writeFile: writeFile,
-    writeStream: writeStream,
-    mkdirp: Q.denodeify(fsExtra.mkdirp),
-    copy: Q.denodeify(fsExtra.copy),
-    remove: Q.denodeify(fsExtra.remove),
-    symlink: Q.denodeify(fsExtra.symlink),
-    exists: function(path) {
-        var d = Q.defer();
-        fs.exists(path, d.resolve);
-        return d.promise;
-    },
-    findFile: findFile,
-    existsSync: fs.existsSync.bind(fs),
-    readFileSync: fs.readFileSync.bind(fs),
-    clean: cleanFolder,
-    getUniqueFilename: getUniqueFilename
-};
-
-// Write a file
-function writeFile(filename, data, options) {
-    var d = Q.defer();
-
-    try {
-        fs.writeFileSync(filename, data, options);
-    } catch(err) {
-        d.reject(err);
-    }
-    d.resolve();
-
+var cp = require('cp');
+var cpr = require('cpr');
 
-    return d.promise;
-}
+var Promise = require('./promise');
 
 // Write a stream to a file
 function writeStream(filename, st) {
-    var d = Q.defer();
+    var d = Promise.defer();
 
     var wstream = fs.createWriteStream(filename);
+    var cleanup = function() {
+        destroy(wstream);
+        wstream.removeAllListeners();
+    };
 
     wstream.on('finish', function () {
+        cleanup();
         d.resolve();
     });
     wstream.on('error', function (err) {
+        cleanup();
         d.reject(err);
     });
 
     st.on('error', function(err) {
+        cleanup();
         d.reject(err);
     });
 
@@ -74,120 +39,80 @@ function writeStream(filename, st) {
     return d.promise;
 }
 
-// Find a filename available
-function getUniqueFilename(base, filename) {
-    if (!filename) {
-        filename = base;
-        base = '/';
-    }
+// Return a promise resolved with a boolean
+function fileExists(filename) {
+    var d = Promise.defer();
 
-    filename = path.resolve(base, filename);
+    fs.exists(filename, function(exists) {
+        d.resolve(exists);
+    });
+
+    return d.promise;
+}
+
+// Generate temporary file
+function genTmpFile(opts) {
+    return Promise.nfcall(tmp.file, opts)
+        .get(0);
+}
+
+// Generate temporary dir
+function genTmpDir(opts) {
+    return Promise.nfcall(tmp.dir, opts)
+        .get(0);
+}
+
+// Download an image
+function download(uri, dest) {
+    return writeStream(dest, request(uri));
+}
+
+// Find a filename available in a folder
+function uniqueFilename(base, filename) {
     var ext = path.extname(filename);
+    filename = path.resolve(base, filename);
     filename = path.join(path.dirname(filename), path.basename(filename, ext));
 
     var _filename = filename+ext;
 
     var i = 0;
     while (fs.existsSync(filename)) {
-        _filename = filename+'_'+i+ext;
+        _filename = filename + '_' + i + ext;
         i = i + 1;
     }
 
-    return path.relative(base, _filename);
-}
-
-
-// List files in a directory
-function listFiles(root, options) {
-    options = _.defaults(options || {}, {
-        ignoreFiles: [],
-        ignoreRules: []
-    });
-
-    var d = Q.defer();
-
-    // Our list of files
-    var files = [];
-
-    var ig = Ignore({
-        path: root,
-        ignoreFiles: options.ignoreFiles
-    });
-
-    // Add extra rules to ignore common folders
-    ig.addIgnoreRules(options.ignoreRules, '__custom_stuff');
-
-    // Push each file to our list
-    ig.on('child', function (c) {
-        files.push(
-            c.path.substr(c.root.path.length + 1) + (c.props.Directory === true ? '/' : '')
-        );
-    });
-
-    ig.on('end', function() {
-        // Normalize paths on Windows
-        if(process.platform === 'win32') {
-            return d.resolve(files.map(function(file) {
-                return file.replace(/\\/g, '/');
-            }));
-        }
-
-        // Simply return paths otherwise
-        return d.resolve(files);
-    });
-
-    ig.on('error', d.reject);
-
-    return d.promise;
+    return Promise(path.relative(base, _filename));
 }
 
-// Clean a folder without removing .git and .svn
-// Creates it if non existant
-function cleanFolder(root) {
-    if (!fs.existsSync(root)) return fsUtils.mkdirp(root);
-
-    return listFiles(root, {
-        ignoreFiles: [],
-        ignoreRules: [
-            // Skip Git and SVN stuff
-            '.git/',
-            '.svn/'
-        ]
-    })
-    .then(function(files) {
-        var d = Q.defer();
-
-        _.reduce(files, function(prev, file, i) {
-            return prev.then(function() {
-                var _file = path.join(root, file);
-
-                d.notify({
-                    i: i+1,
-                    count: files.length,
-                    file: _file
-                });
-                return fsUtils.remove(_file);
-            });
-        }, Q())
-        .then(function() {
-            d.resolve();
-        }, function(err) {
-            d.reject(err);
-        });
-
-        return d.promise;
-    });
+// Create all required folder to create a file
+function ensureFile(filename) {
+    var base = path.dirname(filename);
+    return Promise.nfcall(mkdirp, base);
 }
 
-// Find a file in a folder (case incensitive)
-// Return the real filename
-function findFile(root, filename) {
-    return Q.nfcall(fs.readdir, root)
-    .then(function(files) {
-        return _.find(files, function(file) {
-            return (file.toLowerCase() == filename.toLowerCase());
-        });
+// Remove a folder
+function rmDir(base) {
+    return Promise.nfcall(rmdir, base, {
+        fs: fs
     });
 }
 
-module.exports = fsUtils;
+module.exports = {
+    exists: fileExists,
+    existsSync: fs.existsSync,
+    mkdirp: Promise.nfbind(mkdirp),
+    readFile: Promise.nfbind(fs.readFile),
+    writeFile: Promise.nfbind(fs.writeFile),
+    stat: Promise.nfbind(fs.stat),
+    statSync: fs.statSync,
+    readdir: Promise.nfbind(fs.readdir),
+    writeStream: writeStream,
+    copy: Promise.nfbind(cp),
+    copyDir: Promise.nfbind(cpr),
+    tmpFile: genTmpFile,
+    tmpDir: genTmpDir,
+    download: download,
+    uniqueFilename: uniqueFilename,
+    ensure: ensureFile,
+    rmDir: rmDir
+};
diff --git a/lib/utils/git.js b/lib/utils/git.js
index 72c8818..52b1096 100644
--- a/lib/utils/git.js
+++ b/lib/utils/git.js
@@ -1,127 +1,129 @@
-var  Q = require('q');
 var _ = require('lodash');
 var path = require('path');
 var crc = require('crc');
-var exec = Q.denodeify(require('child_process').exec);
 var URI = require('urijs');
-var pathUtil = require('./path');
 
+var pathUtil = require('./path');
+var Promise = require('./promise');
+var command = require('./command');
 var fs = require('./fs');
 
 var GIT_PREFIX = 'git+';
-var GIT_TMP = null;
-
-
-// Check if an url is a git dependency url
-function checkGitUrl(giturl) {
-    return (giturl.indexOf(GIT_PREFIX) === 0);
-}
 
-// Validates a SHA in hexadecimal
-function validateSha(str) {
-    return (/[0-9a-f]{40}/).test(str);
+function Git() {
+    this.tmpDir;
+    this.cloned = {};
 }
 
-// Parse and extract infos
-function parseGitUrl(giturl) {
-    var ref, uri, fileParts, filepath;
-
-    if (!checkGitUrl(giturl)) return null;
-    giturl = giturl.slice(GIT_PREFIX.length);
-
-    uri = new URI(giturl);
-    ref = uri.fragment() || 'master';
-    uri.fragment(null);
-
-    // Extract file inside the repo (after the .git)
-    fileParts =uri.path().split('.git');
-    filepath = fileParts.length > 1? fileParts.slice(1).join('.git') : '';
-    if (filepath[0] == '/') filepath = filepath.slice(1);
-
-    // Recreate pathname without the real filename
-    uri.path(_.first(fileParts)+'.git');
+// Return an unique ID for a combinaison host/ref
+Git.prototype.repoID = function(host, ref) {
+    return crc.crc32(host+'#'+(ref || '')).toString(16);
+};
 
-    return {
-        host: uri.toString(),
-        ref: ref || 'master',
-        filepath: filepath
-    };
-}
+// Allocate a temporary folder for cloning repos in it
+Git.prototype.allocateDir = function() {
+    var that = this;
 
-// Clone a git repo from a specific ref
-function cloneGitRepo(host, ref) {
-    var isBranch = false;
+    if (this.tmpDir) return Promise();
 
-    ref = ref || 'master';
-    if (!validateSha(ref)) isBranch = true;
+    return fs.tmpDir()
+    .then(function(dir) {
+        that.tmpDir = dir;
+    });
+};
 
-    return Q()
+// Clone a git repository if non existant
+Git.prototype.clone = function(host, ref) {
+    var that = this;
 
-    // Create temporary folder to store git repos
-    .then(function() {
-        if (GIT_TMP) return;
-        return fs.tmp.dir()
-            .then(function(_tmp) {
-                GIT_TMP = _tmp;
-            });
-    })
+    return this.allocateDir()
 
     // Return or clone the git repo
     .then(function() {
         // Unique ID for repo/ref combinaison
-        var repoId = crc.crc32(host+'#'+ref).toString(16);
+        var repoId = that.repoID(host, ref);
 
         // Absolute path to the folder
-        var repoPath = path.resolve(GIT_TMP, repoId);
-
-        return fs.exists(repoPath)
-            .then(function(doExists) {
-                if (doExists) return;
-
-                // Clone repo
-                return exec('git clone '+host+' '+repoPath)
-                .then(function() {
-                    return exec('git checkout '+ref, { cwd: repoPath });
-                });
-            })
-            .thenResolve(repoPath);
+        var repoPath = path.join(that.tmpDir, repoId);
+
+        if (that.cloned[repoId]) return repoPath;
+
+        // Clone repo
+        return command.exec('git clone '+host+' '+repoPath)
+
+        // Checkout reference if specified
+        .then(function() {
+            that.cloned[repoId] = true;
+
+            if (!ref) return;
+            return command.exec('git checkout '+ref, { cwd: repoPath });
+        })
+        .thenResolve(repoPath);
     });
-}
+};
 
 // Get file from a git repo
-function resolveFileFromGit(giturl) {
-    if (_.isString(giturl)) giturl = parseGitUrl(giturl);
-    if (!giturl) return Q(null);
+Git.prototype.resolve = function(giturl) {
+    // Path to a file in a git repo?
+    if (!Git.isUrl(giturl)) {
+        if (this.resolveRoot(giturl)) return Promise(giturl);
+        return Promise(null);
+    }
+    if (_.isString(giturl)) giturl = Git.parseUrl(giturl);
+    if (!giturl) return Promise(null);
 
     // Clone or get from cache
-    return cloneGitRepo(giturl.host, giturl.ref)
+    return this.clone(giturl.host, giturl.ref)
     .then(function(repo) {
-
-        // Resolve relative path
         return path.resolve(repo, giturl.filepath);
     });
-}
+};
 
 // Return root of git repo from a filepath
-function resolveGitRoot(filepath) {
+Git.prototype.resolveRoot = function(filepath) {
     var relativeToGit, repoId;
 
     // No git repo cloned, or file is not in a git repository
-    if (!GIT_TMP || !pathUtil.isInRoot(GIT_TMP, filepath)) return null;
+    if (!this.tmpDir || !pathUtil.isInRoot(this.tmpDir, filepath)) return null;
 
     // Extract first directory (is the repo id)
-    relativeToGit = path.relative(GIT_TMP, filepath);
+    relativeToGit = path.relative(this.tmpDir, filepath);
     repoId = _.first(relativeToGit.split(path.sep));
     if (!repoId) return;
 
     // Return an absolute file
-    return path.resolve(GIT_TMP, repoId);
-}
+    return path.resolve(this.tmpDir, repoId);
+};
+
+// Check if an url is a git dependency url
+Git.isUrl = function(giturl) {
+    return (giturl.indexOf(GIT_PREFIX) === 0);
+};
+
+// Parse and extract infos
+Git.parseUrl = function(giturl) {
+    var ref, uri, fileParts, filepath;
 
+    if (!Git.isUrl(giturl)) return null;
+    giturl = giturl.slice(GIT_PREFIX.length);
+
+    uri = new URI(giturl);
+    ref = uri.fragment() || null;
+    uri.fragment(null);
+
+    // Extract file inside the repo (after the .git)
+    fileParts = uri.path().split('.git');
+    filepath = fileParts.length > 1? fileParts.slice(1).join('.git') : '';
+    if (filepath[0] == '/') filepath = filepath.slice(1);
 
-module.exports = {
-    checkUrl: checkGitUrl,
-    parseUrl: parseGitUrl,
-    resolveFile: resolveFileFromGit,
-    resolveRoot: resolveGitRoot
+    // Recreate pathname without the real filename
+    uri.path(_.first(fileParts)+'.git');
+
+    return {
+        host: uri.toString(),
+        ref: ref,
+        filepath: filepath
+    };
 };
+
+module.exports = Git;
diff --git a/lib/utils/i18n.js b/lib/utils/i18n.js
deleted file mode 100644
index de64b49..0000000
--- a/lib/utils/i18n.js
+++ /dev/null
@@ -1,80 +0,0 @@
-var _ = require('lodash');
-var path = require('path');
-var fs = require('fs');
-
-var i18n = require('i18n');
-
-var I18N_PATH = path.resolve(__dirname, '../../theme/i18n/');
-var DEFAULT_LANGUAGE = 'en';
-var LOCALES = _.map(fs.readdirSync(I18N_PATH), function(lang) {
-    return path.basename(lang, '.json');
-});
-
-i18n.configure({
-    locales: LOCALES,
-    directory: I18N_PATH,
-    defaultLocale: DEFAULT_LANGUAGE,
-    updateFiles: false
-});
-
-function compareLocales(lang, locale) {
-    var langMain = _.first(lang.split('-'));
-    var langSecond = _.last(lang.split('-'));
-
-    var localeMain = _.first(locale.split('-'));
-    var localeSecond = _.last(locale.split('-'));
-
-    if (locale == lang) return 100;
-    if (localeMain == langMain) return 50;
-    if (localeSecond == langSecond) return 20;
-    return 0;
-}
-
-var normalizeLanguage = _.memoize(function(lang) {
-    var language = _.chain(LOCALES)
-        .values()
-        .map(function(locale) {
-            return {
-                locale: locale,
-                score: compareLocales(lang, locale)
-            };
-        })
-        .filter(function(lang) {
-            return lang.score > 0;
-        })
-        .sortBy('score')
-        .pluck('locale')
-        .last()
-        .value();
-    return language || lang;
-});
-
-function translate(locale, phrase) {
-    var args = Array.prototype.slice.call(arguments, 2);
-
-    return i18n.__.apply({}, [{
-        locale: locale,
-        phrase: phrase
-    }].concat(args));
-}
-
-function getCatalog(locale) {
-    locale = normalizeLanguage(locale);
-    return i18n.getCatalog(locale);
-}
-
-function getLocales() {
-    return LOCALES;
-}
-
-function hasLocale(locale) {
-    return _.contains(LOCALES, locale);
-}
-
-module.exports = {
-    __: translate,
-    normalizeLanguage: normalizeLanguage,
-    getCatalog: getCatalog,
-    getLocales: getLocales,
-    hasLocale: hasLocale
-};
diff --git a/lib/utils/images.js b/lib/utils/images.js
index a82b0a1..e387d6b 100644
--- a/lib/utils/images.js
+++ b/lib/utils/images.js
@@ -1,37 +1,44 @@
-var _ = require("lodash");
-var Q = require("q");
-var fs = require("./fs");
-var spawn = require("spawn-cmd").spawn;
-
-// Convert a svg file
-var convertSVG = function(source, dest, options) {
-    if (!fs.existsSync(source)) return Q.reject(new Error("File doesn't exist: "+source));
-    var d = Q.defer();
-
-    options = _.defaults(options || {}, {
-
-    });
-
-    //var command = shellescape(["svgexport", source, dest]);
-    var child = spawn("svgexport", [source, dest]);
+var Promise = require('./promise');
+var command = require('./command');
+var fs = require('./fs');
+var error = require('./error');
+
+// Convert a svg file to a pmg
+function convertSVGToPNG(source, dest, options) {
+    if (!fs.existsSync(source)) return Promise.reject(new error.FileNotFoundError({ filename: source }));
+
+    return command.spawn('svgexport', [source, dest])
+    .fail(function(err) {
+        if (err.code == 'ENOENT') {
+            err = error.RequireInstallError({
+                cmd: 'svgexport',
+                install: 'Install it using: "npm install svgexport -g"'
+            });
+        }
+        throw err;
+    })
+    .then(function() {
+        if (fs.existsSync(dest)) return;
 
-    child.on("error", function(error) {
-        if (error.code == "ENOENT") error = new Error("Need to install \"svgexport\" using \"npm install svgexport -g\"");
-        return d.reject(error);
+        throw new Error('Error converting '+source+' into '+dest);
     });
-
-    child.on("close", function(code) {
-        if (code === 0 && fs.existsSync(dest)) {
-            d.resolve();
-        } else {
-            d.reject(new Error("Error converting "+source+" into "+dest));
-        }
+}
+
+// Convert a svg buffer to a png file
+function convertSVGBufferToPNG(buf, dest) {
+    // Create a temporary SVG file to convert
+    return fs.tmpFile({
+        postfix: '.svg'
+    })
+    .then(function(tmpSvg) {
+        return fs.writeFile(tmpSvg, buf)
+        .then(function() {
+            return convertSVGToPNG(tmpSvg, dest);
+        });
     });
-
-    return d.promise;
-};
+}
 
 module.exports = {
-    convertSVG: convertSVG,
-    INVALID: [".svg"]
-};
+    convertSVGToPNG: convertSVGToPNG,
+    convertSVGBufferToPNG: convertSVGBufferToPNG
+};
\ No newline at end of file
diff --git a/lib/utils/links.js b/lib/utils/location.js
index 5122396..ba0c57d 100644
--- a/lib/utils/links.js
+++ b/lib/utils/location.js
@@ -1,7 +1,7 @@
 var url = require('url');
 var path = require('path');
 
-// Is the link an external link
+// Is the url an external url
 function isExternal(href) {
     try {
         return Boolean(url.parse(href).protocol);
@@ -10,15 +10,9 @@ function isExternal(href) {
     }
 }
 
-// Return true if the link is relative
+// Inverse of isExternal
 function isRelative(href) {
-    try {
-        var parsed = url.parse(href);
-
-        return !!(!parsed.protocol && parsed.path);
-    } catch(err) {
-        return true;
-    }
+    return !isExternal(href);
 }
 
 // Return true if the link is an achor
@@ -32,15 +26,20 @@ function isAnchor(href) {
 }
 
 // Normalize a path to be a link
-function normalizeLink(s) {
+function normalize(s) {
     return s.replace(/\\/g, '/');
 }
 
-// Relative to absolute path
+// Convert relative to absolute path
 // dir: directory parent of the file currently in rendering process
 // outdir: directory parent from the html output
 function toAbsolute(_href, dir, outdir) {
     if (isExternal(_href)) return _href;
+    outdir = outdir == undefined? dir : outdir;
+    
+    _href = normalize(_href);
+    dir = normalize(dir);
+    outdir = normalize(outdir);
 
     // Path "_href" inside the base folder
     var hrefInRoot = path.normalize(path.join(dir, _href));
@@ -50,32 +49,22 @@ function toAbsolute(_href, dir, outdir) {
     _href = path.relative(outdir, hrefInRoot);
 
     // Normalize windows paths
-    _href = normalizeLink(_href);
+    _href = normalize(_href);
 
     return _href;
 }
 
-// Join links
-function join() {
-    var _href = path.join.apply(path, arguments);
-
-    return normalizeLink(_href);
-};
-
-// Change extension
-function changeExtension(filename, newext) {
-    return path.join(
-        path.dirname(filename),
-        path.basename(filename, path.extname(filename))+newext
-    );
+// Convert an absolute path to a relative path for a specific folder (dir)
+// ('test/', 'hello.md') -> '../hello.md'
+function relative(dir, file) {
+    return normalize(path.relative(dir, file));
 }
 
 module.exports = {
-    isAnchor: isAnchor,
-    isRelative: isRelative,
     isExternal: isExternal,
+    isRelative: isRelative,
+    isAnchor: isAnchor,
+    normalize: normalize,
     toAbsolute: toAbsolute,
-    join: join,
-    changeExtension: changeExtension,
-    normalize: normalizeLink
+    relative: relative
 };
diff --git a/lib/utils/logger.js b/lib/utils/logger.js
index db3d90e..60215af 100644
--- a/lib/utils/logger.js
+++ b/lib/utils/logger.js
@@ -1,6 +1,6 @@
-var _ = require("lodash");
-var util = require("util");
-var color = require("bash-color");
+var _ = require('lodash');
+var util = require('util');
+var color = require('bash-color');
 
 var LEVELS = {
     DEBUG: 0,
@@ -17,86 +17,112 @@ var COLORS = {
     ERROR: color.red
 };
 
-module.exports = function(_write, logLevel) {
-    var logger = {};
-    var lastChar = "\n";
-    if (_.isString(logLevel)) logLevel = LEVELS[logLevel.toUpperCase()];
+function Logger(write, logLevel, prefix) {
+    if (!(this instanceof Logger)) return new Logger(write, logLevel);
+
+    this._write = write || function(msg) { process.stdout.write(msg); };
+    this.lastChar = '\n';
+
+    // Define log level
+    this.setLevel(logLevel);
+
+    _.bindAll(this);
 
-    // Write a simple message
-    logger.write = function(msg) {
-        msg = msg.toString();
-        lastChar = _.last(msg);
-        return _write(msg);
-    };
-
-    // Format a message
-    logger.format = function() {
-        return util.format.apply(util, arguments);
-    };
-
-    // Write a line
-    logger.writeLn = function(msg) {
-        return this.write((msg || "")+"\n");
-    };
-
-    // Write a message with a certain level
-    logger.log = function(level) {
-        if (level < logLevel) return;
-
-        var levelKey = _.findKey(LEVELS, function(v) { return v == level; });
-        var args = Array.prototype.slice.apply(arguments, [1]);
-        var msg = logger.format.apply(logger, args);
-
-        if (lastChar == "\n") {
-            msg = COLORS[levelKey](levelKey.toLowerCase()+":")+" "+msg;
-        }
-
-        return logger.write(msg);
-    };
-    logger.logLn = function() {
-        if (lastChar != "\n") logger.write("\n");
-
-        var args = Array.prototype.slice.apply(arguments);
-        args.push("\n");
-        logger.log.apply(logger, args);
-    };
-
-    // Write a OK
-    logger.ok = function(level) {
-        var args = Array.prototype.slice.apply(arguments, [1]);
-        var msg = logger.format.apply(logger, args);
-        if (arguments.length > 1) {
-            logger.logLn(level, color.green(">> ") + msg.trim().replace(/\n/g, color.green("\n>> ")));
-        } else {
-            logger.log(level, color.green("OK"), "\n");
-        }
-    };
-
-    // Write an "FAIL"
-    logger.fail = function(level) {
-        return logger.log(level, color.red("ERROR")+"\n");
-    };
-
-    _.each(_.omit(LEVELS, "DISABLED"), function(level, levelKey) {
+    // Create easy-to-use method like "logger.debug.ln('....')"
+    _.each(_.omit(LEVELS, 'DISABLED'), function(level, levelKey) {
         levelKey = levelKey.toLowerCase();
 
-        logger[levelKey] = _.partial(logger.log, level);
-        logger[levelKey].ln = _.partial(logger.logLn, level);
-        logger[levelKey].ok = _.partial(logger.ok, level);
-        logger[levelKey].fail = _.partial(logger.fail, level);
-        logger[levelKey].promise = function(p) {
-            return p.
-            then(function(st) {
-                logger[levelKey].ok();
-                return st;
-            }, function(err) {
-                logger[levelKey].fail();
-                throw err;
-            });
-        };
-    });
+        this[levelKey] = _.partial(this.log, level);
+        this[levelKey].ln = _.partial(this.logLn, level);
+        this[levelKey].ok = _.partial(this.ok, level);
+        this[levelKey].fail = _.partial(this.fail, level);
+        this[levelKey].promise = _.partial(this.promise, level);
+    }, this);
+}
+
+// Create a new logger prefixed from this logger
+Logger.prototype.prefix = function(prefix) {
+    return (new Logger(this._write, this.logLevel, prefix));
+};
+
+// Change minimum level
+Logger.prototype.setLevel = function(logLevel) {
+    if (_.isString(logLevel)) logLevel = LEVELS[logLevel.toUpperCase()];
+    this.logLevel = logLevel;
+};
+
+// Print a simple string
+Logger.prototype.write = function(msg) {
+    msg = msg.toString();
+    this.lastChar = _.last(msg);
+    return this._write(msg);
+};
+
+// Format a string using the first argument as a printf-like format.
+Logger.prototype.format = function() {
+    return util.format.apply(util, arguments);
+};
+
+// Print a line
+Logger.prototype.writeLn = function(msg) {
+    return this.write((msg || '')+'\n');
+};
 
-    return logger;
+// Log/Print a message if level is allowed
+Logger.prototype.log = function(level) {
+    if (level < this.logLevel) return;
+
+    var levelKey = _.findKey(LEVELS, function(v) { return v == level; });
+    var args = Array.prototype.slice.apply(arguments, [1]);
+    var msg = this.format.apply(this, args);
+
+    if (this.lastChar == '\n') {
+        msg = COLORS[levelKey](levelKey.toLowerCase()+':')+' '+msg;
+    }
+
+    return this.write(msg);
+};
+
+// Log/Print a line if level is allowed
+Logger.prototype.logLn = function() {
+    if (this.lastChar != '\n') this.write('\n');
+
+    var args = Array.prototype.slice.apply(arguments);
+    args.push('\n');
+    return this.log.apply(this, args);
+};
+
+// Log a confirmation [OK]
+Logger.prototype.ok = function(level) {
+    var args = Array.prototype.slice.apply(arguments, [1]);
+    var msg = this.format.apply(this, args);
+    if (arguments.length > 1) {
+        this.logLn(level, color.green('>> ') + msg.trim().replace(/\n/g, color.green('\n>> ')));
+    } else {
+        this.log(level, color.green('OK'), '\n');
+    }
 };
-module.exports.LEVELS = LEVELS;
-module.exports.COLORS = COLORS;
+
+// Log a "FAIL"
+Logger.prototype.fail = function(level) {
+    return this.log(level, color.red('ERROR') + '\n');
+};
+
+// Log state of a promise
+Logger.prototype.promise = function(level, p) {
+    var that = this;
+
+    return p.
+    then(function(st) {
+        that.ok(level);
+        return st;
+    }, function(err) {
+        that.fail(level);
+        throw err;
+    });
+};
+
+Logger.LEVELS = LEVELS;
+Logger.COLORS = COLORS;
+
+module.exports =  Logger;
diff --git a/lib/utils/navigation.js b/lib/utils/navigation.js
deleted file mode 100644
index d07eb35..0000000
--- a/lib/utils/navigation.js
+++ /dev/null
@@ -1,79 +0,0 @@
-var _ = require("lodash");
-
-// Cleans up an article/chapter object
-// remove "articles" attributes
-function clean(obj) {
-    return obj && _.omit(obj, ["articles"]);
-}
-
-function flattenChapters(chapters) {
-    return _.reduce(chapters, function(accu, chapter) {
-        return accu.concat([clean(chapter)].concat(flattenChapters(chapter.articles)));
-    }, []);
-}
-
-// Returns from a summary a map of
-/*
-    {
-        "file/path.md": {
-            prev: ...,
-            next: ...,
-        },
-        ...
-    }
-*/
-function navigation(summary, files) {
-    // Support single files as well as list
-    files = _.isArray(files) ? files : (_.isString(files) ? [files] : null);
-
-    // List of all navNodes
-    // Flatten chapters
-    var navNodes = flattenChapters(summary.chapters);
-
-    // Mapping of prev/next for a give path
-    var mapping = _.chain(navNodes)
-    .map(function(current, i) {
-        var prev = null, next = null;
-
-        // Skip if no path
-        if(!current.exists) return null;
-
-        // Find prev
-        prev = _.chain(navNodes.slice(0, i))
-            .reverse()
-            .find(function(node) {
-                return node.exists && !node.external;
-            })
-            .value();
-
-        // Find next
-        next = _.chain(navNodes.slice(i+1))
-            .find(function(node) {
-                return node.exists && !node.external;
-            })
-            .value();
-
-        return [current.path, {
-            index: i,
-            title: current.title,
-            introduction: current.introduction,
-            prev: prev,
-            next: next,
-            level: current.level,
-        }];
-    })
-    .compact()
-    .object()
-    .value();
-
-    // Filter for only files we want
-    if(files) {
-        return _.pick(mapping, files);
-    }
-
-    return mapping;
-}
-
-
-// Exports
-module.exports = navigation;
diff --git a/lib/utils/page.js b/lib/utils/page.js
deleted file mode 100644
index 010d703..0000000
--- a/lib/utils/page.js
+++ /dev/null
@@ -1,397 +0,0 @@
-var Q = require('q');
-var _ = require('lodash');
-var url = require('url');
-var path = require('path');
-var cheerio = require('cheerio');
-var domSerializer = require('dom-serializer');
-var request = require('request');
-var crc = require('crc');
-var slug = require('github-slugid');
-
-var links = require('./links');
-var imgUtils = require('./images');
-var fs = require('./fs');
-var batch = require('./batch');
-
-var parsableExtensions = require('gitbook-parsers').extensions;
-
-// Map of images that have been converted
-var imgConversionCache = {};
-
-// Render a cheerio dom as html
-function renderDom($, dom, options) {
-    if (!dom && $._root && $._root.children) {
-        dom = $._root.children;
-    }
-
-    options = options|| dom.options || $._options;
-    return domSerializer(dom, options);
-}
-
-function replaceText($, el, search, replace, text_only ) {
-    return $(el).each(function(){
-        var node = this.firstChild,
-            val,
-            new_val,
-
-            // Elements to be removed at the end.
-            remove = [];
-
-        // Only continue if firstChild exists.
-        if ( node ) {
-
-            // Loop over all childNodes.
-            while (node) {
-
-                // Only process text nodes.
-                if ( node.nodeType === 3 ) {
-
-                    // The original node value.
-                    val = node.nodeValue;
-
-                    // The new value.
-                    new_val = val.replace( search, replace );
-
-                    // Only replace text if the new value is actually different!
-                    if ( new_val !== val ) {
-
-                        if ( !text_only && /</.test( new_val ) ) {
-                            // The new value contains HTML, set it in a slower but far more
-                            // robust way.
-                            $(node).before( new_val );
-
-                            // Don't remove the node yet, or the loop will lose its place.
-                            remove.push( node );
-                        } else {
-                            // The new value contains no HTML, so it can be set in this
-                            // very fast, simple way.
-                            node.nodeValue = new_val;
-                        }
-                    }
-                }
-
-                node = node.nextSibling;
-            }
-        }
-
-        // Time to remove those elements!
-        if (remove.length) $(remove).remove();
-    });
-}
-
-function pregQuote( str ) {
-    return (str+'').replace(/([\\\.\+\*\?\[\^\]\$\(\)\{\}\=\!\<\>\|\:])/g, '\\$1');
-}
-
-
-// Adapt an html snippet to be relative to a base folder
-function normalizeHtml(src, options) {
-    var $ = cheerio.load(src, {
-        // We should parse html without trying to normalize too much
-        xmlMode: false,
-
-        // SVG need some attributes to use uppercases
-        lowerCaseAttributeNames: false,
-        lowerCaseTags: false
-    });
-    var toConvert = [];
-    var svgContent = {};
-    var outputRoot = options.book.options.output;
-
-    imgConversionCache[outputRoot] = imgConversionCache[outputRoot] || {};
-
-    // Find svg images to extract and process
-    if (options.convertImages) {
-        $('svg').each(function() {
-            var content = renderDom($, $(this));
-            var svgId = _.uniqueId('svg');
-            var dest = svgId+'.svg';
-
-            // Generate filename
-            dest = '/'+fs.getUniqueFilename(outputRoot, dest);
-
-            svgContent[dest] = '<?xml version="1.0" encoding="UTF-8"?>'+content;
-            $(this).replaceWith($('<img>').attr('src', dest));
-        });
-    }
-
-    // Generate ID for headings
-    $('h1,h2,h3,h4,h5,h6').each(function() {
-        if ($(this).attr('id')) return;
-
-        $(this).attr('id', slug($(this).text()));
-    });
-
-    // Find images to normalize
-    $('img').each(function() {
-        var origin;
-        var src = $(this).attr('src');
-
-        if (!src) return;
-        var isExternal = links.isExternal(src);
-
-        // Transform as relative to the bases
-        if (links.isRelative(src)) {
-            src = links.toAbsolute(src, options.base, options.output);
-        }
-
-        // Convert if needed
-        if (options.convertImages) {
-            // If image is external and ebook, then downlaod the images
-            if (isExternal) {
-                origin = src;
-                src = '/'+crc.crc32(origin).toString(16)+path.extname(url.parse(origin).pathname);
-                src = links.toAbsolute(src, options.base, options.output);
-                isExternal = false;
-            }
-
-            var ext = path.extname(src);
-            var srcAbs = links.join('/', options.base, src);
-
-            // Test image extension
-            if (_.contains(imgUtils.INVALID, ext)) {
-                if (imgConversionCache[outputRoot][srcAbs]) {
-                    // Already converted
-                    src = imgConversionCache[outputRoot][srcAbs];
-                } else {
-                    // Not converted yet
-                    var dest = '';
-
-                    // Replace extension
-                    dest = links.join(path.dirname(srcAbs), path.basename(srcAbs, ext)+'.png');
-                    dest = dest[0] == '/'? dest.slice(1) : dest;
-
-                    // Get a name that doesn't exists
-                    dest = fs.getUniqueFilename(outputRoot, dest);
-
-                    options.book.log.debug.ln('detect invalid image (will be converted to png):', srcAbs);
-
-                    // Add to cache
-                    imgConversionCache[outputRoot][srcAbs] = '/'+dest;
-
-                    // Push to convert
-                    toConvert.push({
-                        origin: origin,
-                        content: svgContent[srcAbs],
-                        source: isExternal? srcAbs : path.join('./', srcAbs),
-                        dest: path.join('./', dest)
-                    });
-
-                    src = links.join('/', dest);
-                }
-
-                // Reset as relative to output
-                src = links.toAbsolute(src, options.base, options.output);
-            }
-
-            else if (origin) {
-                // Need to downlaod image
-                toConvert.push({
-                    origin: origin,
-                    source: path.join('./', srcAbs)
-                });
-            }
-        }
-
-        $(this).attr('src', src);
-    });
-
-    // Normalize links
-    $('a').each(function() {
-        var href = $(this).attr('href');
-        if (!href) return;
-
-        if (links.isAnchor(href)) {
-            // Keep it as it is
-        } else if (links.isRelative(href)) {
-            var parts = url.parse(href);
-
-            var pathName = decodeURIComponent(parts.pathname);
-            var anchor = parts.hash || '';
-
-            // Calcul absolute path for this file (without the anchor)
-            var absolutePath = links.join(options.base, pathName);
-
-            // If is in navigation relative: transform as content
-            if (options.navigation[absolutePath]) {
-                absolutePath = options.book.contentLink(absolutePath);
-            }
-
-            // If md/adoc/rst files is not in summary
-            // or for ebook, signal all files that are outside the summary
-            else if (_.contains(parsableExtensions, path.extname(absolutePath)) ||
-            _.contains(['epub', 'pdf', 'mobi'], options.book.options.generator)) {
-                options.book.log.warn.ln('page', options.input, 'contains an hyperlink to resource outside spine \''+href+'\'');
-            }
-
-            // Transform as absolute
-            href = links.toAbsolute('/'+absolutePath, options.base, options.output)+anchor;
-        } else {
-            // External links
-            $(this).attr('target', '_blank');
-        }
-
-        // Transform extension
-        $(this).attr('href', href);
-    });
-
-    // Highlight code blocks
-    $('code').each(function() {
-        // Normalize language
-        var lang = _.chain(
-                ($(this).attr('class') || '').split(' ')
-            )
-            .map(function(cl) {
-                // Markdown
-                if (cl.search('lang-') === 0) return cl.slice('lang-'.length);
-
-                // Asciidoc
-                if (cl.search('language-') === 0) return cl.slice('language-'.length);
-
-                return null;
-            })
-            .compact()
-            .first()
-            .value();
-
-        var source = $(this).text();
-        var blk = options.book.template.applyBlock('code', {
-            body: source,
-            kwargs: {
-                language: lang
-            }
-        });
-
-        if (blk.html === false) $(this).text(blk.body);
-        else $(this).html(blk.body);
-    });
-
-    // Replace glossary terms
-    var glossary = _.sortBy(options.glossary, function(term) {
-        return -term.name.length;
-    });
-
-    _.each(glossary, function(term) {
-        var r =  new RegExp( '\\b(' + pregQuote(term.name.toLowerCase()) + ')\\b' , 'gi' );
-        var includedInFiles = false;
-
-        $('*').each(function() {
-            // Ignore codeblocks
-            if (_.contains(['code', 'pre', 'a', 'script'], this.name.toLowerCase())) return;
-
-            replaceText($, this, r, function(match) {
-                // Add to files index in glossary
-                if (!includedInFiles) {
-                    includedInFiles = true;
-                    term.files = term.files || [];
-                    term.files.push(options.navigation[options.input]);
-                }
-                return '<a href=\''+links.toAbsolute('/GLOSSARY.html', options.base, options.output) + '#' + term.id+'\' class=\'glossary-term\' title=\''+_.escape(term.description)+'\'>'+match+'</a>';
-            });
-        });
-    });
-
-    return {
-        html: renderDom($),
-        images: toConvert
-    };
-}
-
-// Convert svg images to png
-function convertImages(images, options) {
-    if (!options.convertImages) return Q();
-
-    var downloaded = [];
-    options.book.log.debug.ln('convert ', images.length, 'images to png');
-
-    return batch.execEach(images, {
-        max: 100,
-        fn: function(image) {
-            var imgin = path.resolve(options.book.options.output, image.source);
-
-            return Q()
-
-            // Write image if need to be download
-            .then(function() {
-                if (!image.origin && !_.contains(downloaded, image.origin)) return;
-                options.book.log.debug('download image', image.origin, '...');
-                downloaded.push(image.origin);
-                return options.book.log.debug.promise(fs.writeStream(imgin, request(image.origin)))
-                .fail(function(err) {
-                    if (!_.isError(err)) err = new Error(err);
-
-                    err.message = 'Fail downloading '+image.origin+': '+err.message;
-                    throw err;
-                });
-            })
-
-            // Write svg if content
-            .then(function() {
-                if (!image.content) return;
-                return fs.writeFile(imgin, image.content);
-            })
-
-            // Convert
-            .then(function() {
-                if (!image.dest) return;
-                var imgout = path.resolve(options.book.options.output, image.dest);
-                options.book.log.debug('convert image', image.source, 'to', image.dest, '...');
-                return options.book.log.debug.promise(imgUtils.convertSVG(imgin, imgout));
-            });
-        }
-    })
-    .then(function() {
-        options.book.log.debug.ok(images.length+' images converted with success');
-    });
-}
-
-// Adapt page content to be relative to a base folder
-function normalizePage(sections, options) {
-    options = _.defaults(options || {}, {
-        // Current book
-        book: null,
-
-        // Do we need to convert svg?
-        convertImages: false,
-
-        // Current file path
-        input: '.',
-
-        // Navigation to use to transform path
-        navigation: {},
-
-        // Directory parent of the file currently in rendering process
-        base: './',
-
-        // Directory parent from the html output
-        output: './',
-
-        // Glossary terms
-        glossary: []
-    });
-
-    // List of images to convert
-    var toConvert = [];
-
-    sections = _.map(sections, function(section) {
-        if (section.type != 'normal') return section;
-
-        var out = normalizeHtml(section.content, options);
-
-        toConvert = toConvert.concat(out.images);
-        section.content = out.html;
-        return section;
-    });
-
-    return Q()
-    .then(function() {
-        toConvert = _.uniq(toConvert, 'source');
-        return convertImages(toConvert, options);
-    })
-    .thenResolve(sections);
-}
-
-
-module.exports = {
-    normalize: normalizePage
-};
diff --git a/lib/utils/path.js b/lib/utils/path.js
index 5285896..c233c92 100644
--- a/lib/utils/path.js
+++ b/lib/utils/path.js
@@ -1,5 +1,12 @@
-var _ = require("lodash");
-var path = require("path");
+var _ = require('lodash');
+var path = require('path');
+
+var error = require('./error');
+
+// Normalize a filename
+function normalizePath(filename) {
+    return path.normalize(filename);
+}
 
 // Return true if file path is inside a folder
 function isInRoot(root, filename) {
@@ -10,31 +17,42 @@ function isInRoot(root, filename) {
 // Resolve paths in a specific folder
 // Throw error if file is outside this folder
 function resolveInRoot(root) {
-    var input, result, err;
+    var input, result;
 
     input = _.chain(arguments)
         .toArray()
         .slice(1)
         .reduce(function(current, p) {
             // Handle path relative to book root ("/README.md")
-            if (p[0] == "/" || p[0] == "\\") return p.slice(1);
+            if (p[0] == '/' || p[0] == '\\') return p.slice(1);
 
             return current? path.join(current, p) : path.normalize(p);
-        }, "")
+        }, '')
         .value();
 
     result = path.resolve(root, input);
 
     if (!isInRoot(root, result)) {
-        err = new Error("EACCESS: \"" + result + "\" not in \"" + root + "\"");
-        err.code = "EACCESS";
-        throw err;
+        throw new error.FileOutOfScopeError({
+            filename: result,
+            root: root
+        });
     }
 
     return result;
 }
 
+// Chnage extension
+function setExtension(filename, ext) {
+    return path.join(
+        path.dirname(filename),
+        path.basename(filename, path.extname(filename)) + ext
+    );
+}
+
 module.exports = {
     isInRoot: isInRoot,
-    resolveInRoot: resolveInRoot
+    resolveInRoot: resolveInRoot,
+    normalize: normalizePath,
+    setExtension: setExtension
 };
diff --git a/lib/utils/progress.js b/lib/utils/progress.js
deleted file mode 100644
index 8dda892..0000000
--- a/lib/utils/progress.js
+++ /dev/null
@@ -1,55 +0,0 @@
-var _ = require('lodash');
-
-// Returns from a navigation and a current file, a snapshot of current detailed state
-function calculProgress(navigation, current) {
-    var n = _.size(navigation);
-    var percent = 0, prevPercent = 0, currentChapter = null;
-    var done = true;
-
-    var chapters = _.chain(navigation)
-
-    // Transform as array
-    .map(function(nav, path) {
-        nav.path = path;
-        return nav;
-    })
-
-    // Sort entries
-    .sortBy(function(nav) {
-        return nav.index;
-    })
-
-    .map(function(nav, i) {
-        // Calcul percent
-        nav.percent = (i * 100) / Math.max((n - 1), 1);
-
-        // Is it done
-        nav.done = done;
-        if (nav.path == current) {
-            currentChapter = nav;
-            percent = nav.percent;
-            done = false;
-        } else if (done) {
-            prevPercent = nav.percent;
-        }
-
-        return nav;
-    })
-    .value();
-
-    return {
-        // Previous percent
-        prevPercent: prevPercent,
-
-        // Current percent
-        percent: percent,
-
-        // List of chapter with progress
-        chapters: chapters,
-
-        // Current chapter
-        current: currentChapter
-    };
-}
-
-module.exports = calculProgress;
diff --git a/lib/utils/promise.js b/lib/utils/promise.js
new file mode 100644
index 0000000..d49cf27
--- /dev/null
+++ b/lib/utils/promise.js
@@ -0,0 +1,62 @@
+var Q = require('q');
+var _ = require('lodash');
+
+// Reduce an array to a promise
+function reduce(arr, iter, base) {
+    return _.reduce(arr, function(prev, elem, i) {
+        return prev.then(function(val) {
+            return iter(val, elem, i);
+        });
+    }, Q(base));
+}
+
+// Transform an array
+function serie(arr, iter, base) {
+    return reduce(arr, function(before, item, i) {
+        return Q(iter(item, i))
+        .then(function(r) {
+            before.push(r);
+            return before;
+        });
+    }, []);
+}
+
+// Iter over an array and return first result (not null)
+function some(arr, iter) {
+    return _.reduce(arr, function(prev, elem, i) {
+        return prev.then(function(val) {
+            if (val) return val;
+
+            return iter(elem, i);
+        });
+    }, Q());
+}
+
+// Map an array using an async (promised) iterator
+function map(arr, iter) {
+    return reduce(arr, function(prev, entry, i) {
+        return Q(iter(entry, i))
+        .then(function(out) {
+            prev.push(out);
+            return prev;
+        });
+    }, []);
+}
+
+// Wrap a fucntion in a promise
+function wrap(func) {
+    return _.wrap(func, function(_func) {
+        var args = Array.prototype.slice.call(arguments, 1);
+        return Q()
+        .then(function() {
+            return _func.apply(null, args);
+        });
+    });
+}
+
+module.exports = Q;
+module.exports.reduce = reduce;
+module.exports.map = map;
+module.exports.serie = serie;
+module.exports.some = some;
+module.exports.wrapfn = wrap;
diff --git a/lib/utils/string.js b/lib/utils/string.js
deleted file mode 100644
index caa2364..0000000
--- a/lib/utils/string.js
+++ /dev/null
@@ -1,27 +0,0 @@
-var _ = require("lodash");
-
-function escapeShellArg(arg) {
-    var ret = "";
-
-    ret = arg.replace(/"/g, '\\"');
-
-    return "\"" + ret + "\"";
-}
-
-function optionsToShellArgs(options) {
-    return _.chain(options)
-    .map(function(value, key) {
-        if (value === null || value === undefined || value === false) return null;
-        if (value === true) return key;
-        return key+"="+escapeShellArg(value);
-    })
-    .compact()
-    .value()
-    .join(" ");
-}
-
-module.exports = {
-    escapeShellArg: escapeShellArg,
-    optionsToShellArgs: optionsToShellArgs,
-    toLowerCase: String.prototype.toLowerCase.call.bind(String.prototype.toLowerCase)
-};
diff --git a/lib/utils/watch.js b/lib/utils/watch.js
deleted file mode 100644
index 4d1a752..0000000
--- a/lib/utils/watch.js
+++ /dev/null
@@ -1,40 +0,0 @@
-var Q = require("q");
-var _ = require("lodash");
-var path = require("path");
-var chokidar = require("chokidar");
-
-var parsers = require("gitbook-parsers");
-
-function watch(dir) {
-    var d = Q.defer();
-    dir = path.resolve(dir);
-
-    var toWatch = [
-        "book.json", "book.js"
-    ];
-
-    _.each(parsers.extensions, function(ext) {
-        toWatch.push("**/*"+ext);
-    });
-
-    var watcher = chokidar.watch(toWatch, {
-        cwd: dir,
-        ignored: "_book/**",
-        ignoreInitial: true
-    });
-
-    watcher.once("all", function(e, filepath) {
-        watcher.close();
-
-        d.resolve(filepath);
-    });
-    watcher.once("error", function(err) {
-        watcher.close();
-
-        d.reject(err);
-    });
-
-    return d.promise;
-}
-
-module.exports = watch;
diff --git a/package.json b/package.json
index 0d11bca..e0c54fb 100644
--- a/package.json
+++ b/package.json
@@ -1,25 +1,26 @@
 {
     "name": "gitbook",
-    "version": "2.6.7",
+    "version": "3.0.0-pre.0",
     "homepage": "https://www.gitbook.com",
     "description": "Library and cmd utility to generate GitBooks",
     "main": "lib/index.js",
     "dependencies": {
         "q": "1.0.1",
         "lodash": "3.10.1",
-        "graceful-fs": "3.0.5",
+        "graceful-fs": "4.1.3",
         "resolve": "0.6.3",
-        "fs-extra": "0.16.5",
-        "fstream-ignore": "1.0.2",
-        "gitbook-parsers": "0.8.9",
+        "mkdirp": "0.5.1",
+        "error": "7.0.2",
+        "gitbook-markdown": "1.0.3",
+        "gitbook-asciidoc": "1.0.2",
         "gitbook-plugin-highlight": "1.0.3",
         "gitbook-plugin-sharing": "1.0.1",
         "gitbook-plugin-search": "1.1.0",
         "gitbook-plugin-fontsettings": "1.0.2",
-        "nunjucks": "2.2.0",
+        "gitbook-plugin-theme-default": "1.0.0-pre.4",
+        "nunjucks": "2.3.0",
         "nunjucks-autoescape": "1.0.0",
         "nunjucks-filter": "1.0.0",
-        "i18n": "0.5.0",
         "semver": "5.0.1",
         "npmi": "0.1.1",
         "cheerio": "0.19.0",
@@ -27,42 +28,40 @@
         "chokidar": "~1.0.5",
         "send": "0.2.0",
         "tiny-lr": "0.2.1",
-        "tmp": "0.0.24",
+        "tmp": "0.0.28",
         "crc": "3.2.1",
         "bash-color": "0.0.3",
         "urijs": "1.17.0",
-        "request": "2.51.0",
+        "request": "2.69.0",
         "npm": "2.4.1",
         "dom-serializer": "0.1.0",
         "spawn-cmd": "0.0.2",
         "escape-string-regexp": "1.0.3",
-        "juice": "1.5.0",
-        "jsonschema": "1.0.2",
+        "juice": "1.9.0",
+        "jsonschema": "1.1.0",
         "json-schema-defaults": "0.1.1",
         "merge-defaults": "0.2.1",
-        "github-slugid": "1.0.0"
+        "github-slugid": "1.0.0",
+        "destroy": "1.0.4",
+        "ignore": "2.2.19",
+        "deprecated": "0.0.1",
+        "rmdir": "1.2.0",
+        "cp": "0.2.0",
+        "cpr": "1.0.0",
+        "direction": "0.1.5",
+        "moment": "2.11.2",
+        "i18n-t": "1.0.0",
+        "front-matter": "2.0.6",
+        "spawn-cmd": "0.0.2"
     },
     "devDependencies": {
         "eslint": "1.5.0",
-        "mocha": "2.3.2",
-        "should": "7.1.0",
-        "should-promised": "0.3.1",
-        "gulp": "^3.8.11",
-        "gulp-rename": "^1.2.2",
-        "gulp-uglify": "1.1.0",
-        "gulp-less": "3.0.2",
-        "gulp-minify-css": "1.0.0",
-        "gulp-util": "3.0.6",
-        "browserify": "11.0.1",
-        "merge-stream": "0.1.7",
-        "vinyl-source-stream": "1.1.0",
-        "jquery": "2.1.4",
-        "mousetrap": "1.5.3",
-        "font-awesome": "4.1.0",
-        "gitbook-markdown-css": "1.0.1"
+        "mocha": "2.4.5",
+        "should": "8.2.2"
     },
     "scripts": {
-        "test": "node_modules/.bin/mocha --reporter spec --timeout 15000"
+        "test": "node_modules/.bin/mocha --reporter spec --bail --timeout 15000 ./test/all.js",
+        "lint": "eslint ."
     },
     "repository": {
         "type": "git",
diff --git a/test/all.js b/test/all.js
new file mode 100644
index 0000000..9c82c91
--- /dev/null
+++ b/test/all.js
@@ -0,0 +1,27 @@
+
+// Utilities
+require('./location');
+require('./paths');
+
+// Parsing
+require('./locate');
+require('./config');
+require('./readme');
+require('./summary');
+require('./glossary');
+require('./langs');
+require('./parse');
+
+require('./git');
+require('./plugins');
+require('./template');
+require('./conrefs');
+
+// Page and HTML generation
+require('./page');
+
+// Output
+require('./assets-inliner');
+require('./output-json');
+require('./output-website');
+require('./output-ebook');
diff --git a/test/assertions.js b/test/assertions.js
index f9c4ba3..56da249 100644
--- a/test/assertions.js
+++ b/test/assertions.js
@@ -1,25 +1,18 @@
-var _ = require('lodash');
 var fs = require('fs');
-var path = require('path');
-var should = require('should');
+var _ = require('lodash');
 var cheerio = require('cheerio');
+var should = require('should');
 
-require('should-promised');
-
+// Assertions to test if an Output has generated a file
 should.Assertion.add('file', function(file, description) {
-    this.params = { actual: this.obj.toString(), operator: 'have file ' + file, message: description };
-
-    this.obj.should.have.property('options').which.is.an.Object();
-    this.obj.options.should.have.property('output').which.is.a.String();
-    this.assert(fs.existsSync(path.resolve(this.obj.options.output, file)));
-});
-
-should.Assertion.add('jsonfile', function(file, description) {
-    this.params = { actual: this.obj.toString(), operator: 'have valid jsonfile ' + file, message: description };
-
-    this.obj.should.have.property('options').which.is.an.Object();
-    this.obj.options.should.have.property('output').which.is.a.String();
-    this.assert(JSON.parse(fs.readFileSync(path.resolve(this.obj.options.output, file), { encoding: 'utf-8' })));
+    this.params = {
+        actual: this.obj.root(),
+        operator: 'have file ' + file,
+        message: description
+    };
+
+    this.obj.should.have.property('resolve').which.is.a.Function;
+    this.assert(fs.existsSync(this.obj.resolve(file)));
 });
 
 should.Assertion.add('html', function(rules, description) {
diff --git a/test/assets-inliner.js b/test/assets-inliner.js
new file mode 100644
index 0000000..7ccabc5
--- /dev/null
+++ b/test/assets-inliner.js
@@ -0,0 +1,86 @@
+var cheerio = require('cheerio');
+var path = require('path');
+
+var mock = require('./mock');
+var AssetsInliner = require('../lib/output/assets-inliner')();
+
+describe('Assets Inliner Output', function() {
+    var output;
+
+    before(function() {
+        var SVG = '<svg xmlns="http://www.w3.org/2000/svg" width="200" height="100" version="1.1"><rect width="200" height="100" stroke="black" stroke-width="6" fill="green"/></svg>';
+
+        return mock.outputDefaultBook(AssetsInliner, {
+            'README.md': '',
+
+            // SVGs
+            'svg_file.md': '![image](test.svg)',
+            'svg_inline.md': 'This is a svg: '+SVG,
+            'test.svg': '<?xml version="1.0" encoding="UTF-8"?>' + SVG,
+
+            // Relative
+            'folder/test.md': '![image](../test.svg)',
+
+            // Remote images
+            'remote_png.md': '![image](https://upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png)',
+            'remote_svg.md': '![image](https://upload.wikimedia.org/wikipedia/commons/0/02/SVG_logo.svg)',
+
+            'SUMMARY.md': '* [svg inline](svg_inline.md)\n' +
+                '* [svg file](svg_file.md)\n' +
+                '* [remote png file](remote_png.md)\n' +
+                '* [remote svg file](remote_svg.md)\n' +
+                '* [relative image](folder/test.md)\n' +
+                '\n\n'
+        })
+        .then(function(_output) {
+            output = _output;
+        });
+    });
+
+    function testImageInPage(filename) {
+        var page = output.book.getPage(filename);
+        var $ = cheerio.load(page.content);
+
+        // Is there an image?
+        var $img = $('img');
+        $img.length.should.equal(1);
+
+        // Does the file exists
+        var src = $img.attr('src');
+
+        // Resolve the filename
+        src = page.resolveLocal(src);
+
+        output.should.have.file(src);
+        path.extname(src).should.equal('.png');
+
+        return src;
+    }
+
+    describe('SVG', function() {
+        it('should correctly convert SVG files to PNG', function() {
+            testImageInPage('svg_file.md');
+        });
+
+        it('should correctly convert inline SVG  to PNG', function() {
+            testImageInPage('svg_inline.md');
+        });
+    });
+
+    describe('Remote Assets', function() {
+        it('should correctly download a PNG file', function() {
+            testImageInPage('remote_png.md');
+        });
+
+        it('should correctly download then convert a remote SVG to PNG', function() {
+            testImageInPage('remote_svg.md');
+        });
+    });
+
+    describe('Relative Images', function() {
+        it('should correctly resolve image', function() {
+            testImageInPage('folder/test.md');
+        });
+    });
+});
+
diff --git a/test/books/basic/README.md b/test/books/basic/README.md
deleted file mode 100644
index 09ade40..0000000
--- a/test/books/basic/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Readme
-
-Default description for the book.
diff --git a/test/books/basic/SUMMARY.md b/test/books/basic/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/basic/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/config-js/README.md b/test/books/config-js/README.md
deleted file mode 100644
index f395431..0000000
--- a/test/books/config-js/README.md
+++ /dev/null
@@ -1 +0,0 @@
-# Readme
diff --git a/test/books/config-js/SUMMARY.md b/test/books/config-js/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/config-js/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/config-js/book.js b/test/books/config-js/book.js
deleted file mode 100644
index 8731343..0000000
--- a/test/books/config-js/book.js
+++ /dev/null
@@ -1,3 +0,0 @@
-module.exports = {
-    "title": "js-config"
-};
diff --git a/test/books/config-json/README.md b/test/books/config-json/README.md
deleted file mode 100644
index f395431..0000000
--- a/test/books/config-json/README.md
+++ /dev/null
@@ -1 +0,0 @@
-# Readme
diff --git a/test/books/config-json/SUMMARY.md b/test/books/config-json/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/config-json/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/config-json/book.json b/test/books/config-json/book.json
deleted file mode 100644
index eda10bb..0000000
--- a/test/books/config-json/book.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "title": "json-config"
-}
diff --git a/test/books/conrefs/README.md b/test/books/conrefs/README.md
deleted file mode 100644
index 324ee1f..0000000
--- a/test/books/conrefs/README.md
+++ /dev/null
@@ -1,15 +0,0 @@
-# Readme
-
-<p id="test-plugin-block-shortcuts-1">$$test_block1$$</p>
-<p id="test-plugin-block-shortcuts-2">{% include "./block.md" %}</p>
-
-### Relative
-
-<p id="t1">{% include "./hello.md" %}</p>
-<p id="t2">{% include "/hello.md" %}</p>
-
-### Git
-
-<p id="t3">{% include "git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test.md" %}</p>
-<p id="t4">{% include "git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test2.md" %}</p>
-<p id="t5">{% include "git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test3.md" %}</p>
diff --git a/test/books/conrefs/SUMMARY.md b/test/books/conrefs/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/conrefs/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/conrefs/block.md b/test/books/conrefs/block.md
deleted file mode 100644
index 3910cb6..0000000
--- a/test/books/conrefs/block.md
+++ /dev/null
@@ -1 +0,0 @@
-$$test_block2$$
diff --git a/test/books/conrefs/hello.md b/test/books/conrefs/hello.md
deleted file mode 100644
index 557db03..0000000
--- a/test/books/conrefs/hello.md
+++ /dev/null
@@ -1 +0,0 @@
-Hello World
diff --git a/test/books/glossary/GLOSSARY.md b/test/books/glossary/GLOSSARY.md
deleted file mode 100644
index 18840d2..0000000
--- a/test/books/glossary/GLOSSARY.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# Glossary
-
-## test
-
-Just a simple and easy to understand test.
-
-## hakunamatata
-
-This word is not present in the content.
-
-## test long
-
-This is a test with a longer text that the first entry to test order.
diff --git a/test/books/glossary/README.md b/test/books/glossary/README.md
deleted file mode 100644
index d46da8b..0000000
--- a/test/books/glossary/README.md
+++ /dev/null
@@ -1,10 +0,0 @@
-# Readme
-
-The word test should be replaced by a glossary link.
-
-```
-But the word test should not be replaced in code blocks
-```
-
-The two words test long should be replaced by the correct glossary links.
-
diff --git a/test/books/glossary/SUMMARY.md b/test/books/glossary/SUMMARY.md
deleted file mode 100644
index deaea20..0000000
--- a/test/books/glossary/SUMMARY.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Summary
-
-* [Page](folder/PAGE.md)
diff --git a/test/books/glossary/folder/PAGE.md b/test/books/glossary/folder/PAGE.md
deleted file mode 100644
index 33b17c2..0000000
--- a/test/books/glossary/folder/PAGE.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Page
-
-Just a page in a sub-directory to test relative link to glossary.
diff --git a/test/books/headings/README.md b/test/books/headings/README.md
deleted file mode 100644
index b08c485..0000000
--- a/test/books/headings/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Hello World
-
-## Hello {#hello-custom}
diff --git a/test/books/headings/SUMMARY.md b/test/books/headings/SUMMARY.md
deleted file mode 100644
index e69de29..0000000
--- a/test/books/headings/SUMMARY.md
+++ /dev/null
diff --git a/test/books/highlight/README.md b/test/books/highlight/README.md
deleted file mode 100644
index f47ac83..0000000
--- a/test/books/highlight/README.md
+++ /dev/null
@@ -1,16 +0,0 @@
-# Readme
-
-Block without language
-
-```
-test 1
-```
-
-Block with a language
-
-```lang
-test 2
-```
-
-Inline code: `test 3`
-Inline code with html: `<test>`
\ No newline at end of file
diff --git a/test/books/highlight/SUMMARY.md b/test/books/highlight/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/highlight/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/images/README.md b/test/books/images/README.md
deleted file mode 100644
index 484f410..0000000
--- a/test/books/images/README.md
+++ /dev/null
@@ -1,18 +0,0 @@
-# Tests for Images
-
-# SVG relative image
-
-
-### Convert SVG to PNG
-![test.svg](test.svg)
-
-### Should only convert it once
-![test.svg](test.svg)
-
-### Download remote images
-![remote image](http://upload.wikimedia.org/wikipedia/commons/b/b0/NewTux.svg)
-
-### Remote images with same filename
-![youtube1](http://img.youtube.com/vi/9bZkp7q19f0/0.jpg)
-![youtube2](http://img.youtube.com/vi/IkV2HQLAKHY/0.jpg)
-
diff --git a/test/books/images/SUMMARY.md b/test/books/images/SUMMARY.md
deleted file mode 100644
index ec0c4fc..0000000
--- a/test/books/images/SUMMARY.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Summary
-
-* [Page](./folder/PAGE.md)
diff --git a/test/books/images/folder/PAGE.md b/test/books/images/folder/PAGE.md
deleted file mode 100644
index 8beb060..0000000
--- a/test/books/images/folder/PAGE.md
+++ /dev/null
@@ -1,3 +0,0 @@
-### Images from other folder
-![test.svg](../test.svg)
-
diff --git a/test/books/images/test.svg b/test/books/images/test.svg
deleted file mode 100644
index 48bba70..0000000
--- a/test/books/images/test.svg
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1 Tiny//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-tiny.dtd">
-<svg version="1.1" baseProfile="tiny" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" id="svg-root" width="100%" height="100%" viewBox="0 0 480 360">
-    <title id="test-title">basic SVG tiny doc</title>
-    <g id="test-body-content">
-        <text font-family="Arial" font-size="14" text-anchor="middle" x="225" y="25">hello world</text>
-    </g>
-    <text id="revision" x="10" y="340" font-size="40" stroke="none" fill="black">Revision: 1.1</text>
-    <rect id="test-frame" x="1" y="1" width="478" height="358" fill="none" stroke="#000000"/>
-</svg>
-
diff --git a/test/books/init/.gitignore b/test/books/init/.gitignore
deleted file mode 100644
index 8a88b2a..0000000
--- a/test/books/init/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-*
-!SUMMARY.md
-!.gitignore
diff --git a/test/books/init/SUMMARY.md b/test/books/init/SUMMARY.md
deleted file mode 100644
index 31c1561..0000000
--- a/test/books/init/SUMMARY.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Summary
-
-* [Hello](hello.md)
-* [Hello 2](hello2.md)
-* Hello 3
-    * [Hello 4](hello3/hello4.md)
-    * Hello 5
-        * [Hello 6](hello3/hello5/hello6.md)
-
diff --git a/test/books/languages/LANGS.md b/test/books/languages/LANGS.md
deleted file mode 100644
index 4267b3c..0000000
--- a/test/books/languages/LANGS.md
+++ /dev/null
@@ -1,4 +0,0 @@
-# Language
-
-* [English](en)
-* [French](fr)
diff --git a/test/books/languages/README.md b/test/books/languages/README.md
deleted file mode 100644
index f395431..0000000
--- a/test/books/languages/README.md
+++ /dev/null
@@ -1 +0,0 @@
-# Readme
diff --git a/test/books/languages/en/README.md b/test/books/languages/en/README.md
deleted file mode 100644
index e965047..0000000
--- a/test/books/languages/en/README.md
+++ /dev/null
@@ -1 +0,0 @@
-Hello
diff --git a/test/books/languages/en/SUMMARY.md b/test/books/languages/en/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/languages/en/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/languages/fr/README.md b/test/books/languages/fr/README.md
deleted file mode 100644
index 632e4fe..0000000
--- a/test/books/languages/fr/README.md
+++ /dev/null
@@ -1 +0,0 @@
-Bonjour
diff --git a/test/books/languages/fr/SUMMARY.md b/test/books/languages/fr/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/languages/fr/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/links/README.md b/test/books/links/README.md
deleted file mode 100644
index f395431..0000000
--- a/test/books/links/README.md
+++ /dev/null
@@ -1 +0,0 @@
-# Readme
diff --git a/test/books/links/SUMMARY.md b/test/books/links/SUMMARY.md
deleted file mode 100644
index a7debc2..0000000
--- a/test/books/links/SUMMARY.md
+++ /dev/null
@@ -1,4 +0,0 @@
-# Summary
-
-* [Folder1](folder1/README.md)
-* [Folder2](folder2/README.md)
\ No newline at end of file
diff --git a/test/books/links/folder1/README.md b/test/books/links/folder1/README.md
deleted file mode 100644
index 99a83f6..0000000
--- a/test/books/links/folder1/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Folder 1
-
-[Link to folder2](../folder2/README.md)
diff --git a/test/books/links/folder2/README.md b/test/books/links/folder2/README.md
deleted file mode 100644
index aa2056a..0000000
--- a/test/books/links/folder2/README.md
+++ /dev/null
@@ -1 +0,0 @@
-# Folder 2
diff --git a/test/books/structure/README.adoc b/test/books/structure/README.adoc
deleted file mode 100644
index 354647f..0000000
--- a/test/books/structure/README.adoc
+++ /dev/null
@@ -1 +0,0 @@
-== Readme for the bookk
diff --git a/test/books/structure/README.md b/test/books/structure/README.md
deleted file mode 100644
index 94f18a8..0000000
--- a/test/books/structure/README.md
+++ /dev/null
@@ -1 +0,0 @@
-# Readme for GitHub
diff --git a/test/books/structure/SUMMARY.md b/test/books/structure/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/structure/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/structure/book.json b/test/books/structure/book.json
deleted file mode 100644
index 110e0ba..0000000
--- a/test/books/structure/book.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-    "structure": {
-        "readme": "README.adoc"
-    }
-}
\ No newline at end of file
diff --git a/test/books/structure/glossary.md b/test/books/structure/glossary.md
deleted file mode 100644
index 8c6c0fd..0000000
--- a/test/books/structure/glossary.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# Glossary
-
-### Hello
-
-Hello world
diff --git a/test/books/style-print/README.md b/test/books/style-print/README.md
deleted file mode 100644
index 09ade40..0000000
--- a/test/books/style-print/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Readme
-
-Default description for the book.
diff --git a/test/books/style-print/SUMMARY.md b/test/books/style-print/SUMMARY.md
deleted file mode 100644
index ac9323c..0000000
--- a/test/books/style-print/SUMMARY.md
+++ /dev/null
@@ -1 +0,0 @@
-# Summary
diff --git a/test/books/style-print/styles/print.css b/test/books/style-print/styles/print.css
deleted file mode 100644
index b05faf8..0000000
--- a/test/books/style-print/styles/print.css
+++ /dev/null
@@ -1,3 +0,0 @@
-body {
-    color: red;
-}
diff --git a/test/books/summary/PAGE1.md b/test/books/summary/PAGE1.md
deleted file mode 100644
index 9608001..0000000
--- a/test/books/summary/PAGE1.md
+++ /dev/null
@@ -1 +0,0 @@
-# Page 1
diff --git a/test/books/summary/README.md b/test/books/summary/README.md
deleted file mode 100644
index f395431..0000000
--- a/test/books/summary/README.md
+++ /dev/null
@@ -1 +0,0 @@
-# Readme
diff --git a/test/books/summary/SUMMARY.md b/test/books/summary/SUMMARY.md
deleted file mode 100644
index 38d0f6b..0000000
--- a/test/books/summary/SUMMARY.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# Summary
-
-* [Page 1](./PAGE1.md)
-* [Page 2](./folder/PAGE2.md)
-* [Don't exists](./NOTFOUND.md)
diff --git a/test/books/summary/folder/PAGE2.md b/test/books/summary/folder/PAGE2.md
deleted file mode 100644
index f310be3..0000000
--- a/test/books/summary/folder/PAGE2.md
+++ /dev/null
@@ -1 +0,0 @@
-# Page 2
diff --git a/test/codehighlighting.js b/test/codehighlighting.js
deleted file mode 100644
index f167980..0000000
--- a/test/codehighlighting.js
+++ /dev/null
@@ -1,65 +0,0 @@
-var path = require('path');
-var fs = require('fs');
-
-var Plugin = require('../lib/plugin');
-var PLUGINS_ROOT = path.resolve(__dirname, 'plugins');
-
-describe('Code Highlighting', function () {
-    var book, PAGE;
-
-    before(function() {
-        return books.generate('highlight', 'website', {
-            prepare: function(_book) {
-                book = _book;
-
-                var plugin = new Plugin(book, 'replace_highlight');
-                plugin.load('./replace_highlight', PLUGINS_ROOT);
-
-                book.plugins.load(plugin);
-            }
-        })
-        .then(function() {
-            PAGE = fs.readFileSync(
-                path.join(book.options.output, 'index.html'),
-                { encoding: 'utf-8' }
-            );
-        });
-    });
-
-    it('should correctly replace highlighting', function() {
-        PAGE.should.be.html({
-            'code': {
-                index: 0,
-                text: 'code_test 1\n_code'
-            }
-        });
-    });
-
-    it('should correctly replace highlighting with language', function() {
-        PAGE.should.be.html({
-            'code': {
-                index: 1,
-                text: 'lang_test 2\n_lang'
-            }
-        });
-    });
-
-    it('should correctly replace highlighting for inline code', function() {
-        PAGE.should.be.html({
-            'code': {
-                index: 2,
-                text: 'code_test 3_code'
-            }
-        });
-    });
-
-    it('should correctly replace highlighting for inline code with html tags', function() {
-        PAGE.should.be.html({
-            'code': {
-                index: 3,
-                text: 'code_<test>_code'
-            }
-        });
-    });
-});
-
diff --git a/test/config.js b/test/config.js
new file mode 100644
index 0000000..be28fc9
--- /dev/null
+++ b/test/config.js
@@ -0,0 +1,137 @@
+var should = require('should');
+var mock = require('./mock');
+var validator = require('../lib/config/validator');
+
+describe('Configuration', function() {
+
+    describe('Validation', function() {
+        it('should merge default', function() {
+            validator.validate({}).should.have.property('gitbook').which.equal('*');
+        });
+
+        it('should throw error for invalid configuration', function() {
+            should.throws(function() {
+                validator.validate({
+                    direction: 'invalid'
+                });
+            });
+        });
+
+        it('should not throw error for non existing configuration', function() {
+            validator.validate({
+                style: {
+                    'pdf': 'test.css'
+                }
+            });
+        });
+
+        it('should validate plugins as an array', function() {
+            validator.validate({
+                plugins: ['hello']
+            });
+        });
+
+        it('should validate plugins as a string', function() {
+            validator.validate({
+                plugins: 'hello,world'
+            });
+        });
+
+    });
+
+    describe('No configuration', function() {
+        var book;
+
+        before(function() {
+            return mock.setupDefaultBook()
+            .then(function(_book) {
+                book = _book;
+                return book.config.load();
+            });
+        });
+
+        it('should signal that configuration is not defined', function() {
+            book.config.exists().should.not.be.ok();
+        });
+    });
+
+    describe('JSON file', function() {
+        var book;
+
+        before(function() {
+            return mock.setupDefaultBook({
+                'book.json': { title: 'Hello World' }
+            })
+            .then(function(_book) {
+                book = _book;
+                return book.config.load();
+            });
+        });
+
+        it('should correctly extend configuration', function() {
+            book.config.get('title', '').should.equal('Hello World');
+        });
+    });
+
+    describe('JS file', function() {
+        var book;
+
+        before(function() {
+            return mock.setupDefaultBook({
+                'book.js': 'module.exports = { title: "Hello World" };'
+            })
+            .then(function(_book) {
+                book = _book;
+                return book.config.load();
+            });
+        });
+
+        it('should correctly extend configuration', function() {
+            book.config.get('title', '').should.equal('Hello World');
+        });
+    });
+
+    describe('Multilingual', function() {
+        var book;
+
+        before(function() {
+            return mock.setupDefaultBook({
+                'book.json': {
+                    title: 'Hello World',
+                    pluginsConfig: {
+                        'test': {
+                            'hello': true
+                        }
+                    }
+                },
+                'LANGS.md': '# Languages\n\n'
+                    + '* [en](./en)\n'
+                    + '* [fr](./fr)\n\n',
+                'en/README.md': '# Hello',
+                'fr/README.md': '# Bonjour',
+                'en/book.json': { description: 'In english' },
+                'fr/book.json': { description: 'En francais' }
+            })
+            .then(function(_book) {
+                book = _book;
+                return book.parse();
+            });
+        });
+
+        it('should correctly extend configuration', function() {
+            book.config.get('title', '').should.equal('Hello World');
+            book.config.get('description', '').should.equal('');
+
+            var en = book.books[0];
+            en.config.get('title', '').should.equal('Hello World');
+            en.config.get('description', '').should.equal('In english');
+            en.config.get('pluginsConfig.test.hello').should.equal(true);
+
+            var fr = book.books[1];
+            fr.config.get('title', '').should.equal('Hello World');
+            fr.config.get('description', '').should.equal('En francais');
+            fr.config.get('pluginsConfig.test.hello').should.equal(true);
+        });
+    });
+});
+
diff --git a/test/configuration.js b/test/configuration.js
deleted file mode 100644
index d30fd61..0000000
--- a/test/configuration.js
+++ /dev/null
@@ -1,37 +0,0 @@
-describe('Configuration', function () {
-    it('should extract default title from README', function() {
-        return books.parse('basic')
-            .then(function(book) {
-                book.options.title.should.be.equal('Readme');
-            });
-    });
-
-    it('should extract default description from README', function() {
-        return books.parse('basic')
-            .then(function(book) {
-                book.options.description.should.be.equal('Default description for the book.');
-            });
-    });
-
-    it('should correctly load from json (book.json)', function() {
-        return books.parse('config-json')
-            .then(function(book) {
-                book.options.title.should.be.equal('json-config');
-            });
-    });
-
-    it('should correctly load from JavaScript (book.js)', function() {
-        return books.parse('config-js')
-            .then(function(book) {
-                book.options.title.should.be.equal('js-config');
-            });
-    });
-
-    it('should provide configuration on book.config.get', function() {
-        return books.parse('basic')
-            .then(function(book) {
-                book.config.get('description').should.be.equal('Default description for the book.');
-                book.getConfig('description').should.be.equal('Default description for the book.');
-            });
-    });
-});
diff --git a/test/conrefs.js b/test/conrefs.js
index 32e4058..6500709 100644
--- a/test/conrefs.js
+++ b/test/conrefs.js
@@ -1,68 +1,49 @@
-var fs = require('fs');
-var path = require('path');
+var mock = require('./mock');
+var ConrefsLoader = require('../lib/output/conrefs')();
 
-describe('ConRefs', function () {
-    var book, readme;
+
+describe('Conrefs Loader', function() {
+    var output;
 
     before(function() {
-        return books.generate('conrefs', 'website')
-            .then(function(_book) {
-                book = _book;
+        return mock.outputDefaultBook(ConrefsLoader, {
+            'test.md': 'World'
+        })
+        .then(function(_output) {
+            output = _output;
+        });
+    });
+
 
-                readme = fs.readFileSync(
-                    path.join(book.options.output, 'index.html'),
-                    { encoding: 'utf-8' }
-                );
-            });
+    it('should include a local file', function() {
+        return output.template.renderString('Hello {% include "./test.md" %}')
+            .should.be.fulfilledWith('Hello World');
     });
 
-    it('should handle local references', function() {
-        readme.should.be.html({
-            '.page-inner p#t1': {
-                count: 1,
-                text: 'Hello World',
-                trim: true
-            }
-        });
+    it('should include a git url', function() {
+        return output.template.renderString('Hello {% include "./test.md" %}')
+            .should.be.fulfilledWith('Hello World');
     });
 
-    it('should handle local references with absolute paths', function() {
-        readme.should.be.html({
-            '.page-inner p#t2': {
-                count: 1,
-                text: 'Hello World',
-                trim: true
-            }
-        });
+    it('should reject file out of scope', function() {
+        return output.template.renderString('Hello {% include "../test.md" %}')
+            .should.be.rejected();
     });
 
-    it('should correctly include file from git reference', function() {
-        readme.should.be.html({
-            '.page-inner p#t3': {
-                count: 1,
-                text: 'Hello from git',
-                trim: true
-            }
+    describe('Git Urls', function() {
+        it('should include a file from a git repo', function() {
+            return output.template.renderString('{% include "git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test.md" %}')
+                .should.be.fulfilledWith('Hello from git');
         });
-    });
 
-    it('should correctly handle deep include in git reference', function() {
-        readme.should.be.html({
-            '.page-inner p#t4': {
-                count: 1,
-                text: 'First Hello. Hello from git',
-                trim: true
-            }
+        it('should handle deep inclusion (1)', function() {
+            return output.template.renderString('{% include "git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test2.md" %}')
+                .should.be.fulfilledWith('First Hello. Hello from git');
         });
-    });
 
-    it('should correctly handle absolute include in git reference', function() {
-        readme.should.be.html({
-            '.page-inner p#t5': {
-                count: 1,
-                text: 'First Hello. Hello from git',
-                trim: true
-            }
+        it('should handle deep inclusion (2)', function() {
+            return output.template.renderString('{% include "git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test3.md" %}')
+                .should.be.fulfilledWith('First Hello. Hello from git');
         });
     });
 });
diff --git a/test/ebook.js b/test/ebook.js
deleted file mode 100644
index 5caf28b..0000000
--- a/test/ebook.js
+++ /dev/null
@@ -1,70 +0,0 @@
-var fs = require('fs');
-var path = require('path');
-
-describe('eBook generator', function () {
-    describe('Basic Book', function() {
-        var book;
-
-        before(function() {
-            return books.generate('basic', 'ebook')
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it('should correctly output a SUMMARY.html', function() {
-            book.should.have.file('SUMMARY.html');
-        });
-
-        it('should correctly copy assets', function() {
-            book.should.have.file('gitbook');
-            book.should.have.file('gitbook/ebook.css');
-        });
-
-        it('should not copy website assets', function() {
-            book.should.not.have.file('gitbook/style.css');
-        });
-    });
-
-    describe('Custom styles', function() {
-        var book;
-
-        before(function() {
-            return books.generate('style-print', 'ebook')
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it('should correctly copy print.css', function() {
-            book.should.have.file('styles');
-            book.should.have.file('styles/print.css');
-        });
-
-        it('should remove default print.css', function() {
-            var PAGE = fs.readFileSync(
-                path.join(book.options.output, 'index.html'),
-                { encoding: 'utf-8' }
-            );
-
-            // There are 2 styles (one from plugin-highlight and the new style)
-            PAGE.should.be.html({
-                'link': {
-                    count: 2
-                }
-            });
-
-            PAGE.should.be.html({
-                'link[href=\'./styles/print.css\']': {
-                    count: 1
-                }
-            });
-
-            PAGE.should.be.html({
-                'link[href="gitbook/plugins/gitbook-plugin-highlight/ebook.css"]': {
-                    count: 1
-                }
-            });
-        });
-    });
-});
diff --git a/test/format.js b/test/format.js
deleted file mode 100644
index 2ec1a6f..0000000
--- a/test/format.js
+++ /dev/null
@@ -1,11 +0,0 @@
-describe('Formatting', function () {
-    it('should provide formatting with book.formatString', function() {
-        return books.parse('basic')
-        .then(function(book) {
-            return book.formatString('markdown', 'this is a **test**');
-        })
-        .then(function(content) {
-            content.should.equal('<p>this is a <strong>test</strong></p>\n');
-        });
-    });
-});
diff --git a/test/git.js b/test/git.js
index 6fd6b41..9fd7490 100644
--- a/test/git.js
+++ b/test/git.js
@@ -1,31 +1,61 @@
-var should = require("should");
-var git = require("../lib/utils/git");
+var should = require('should');
+var path = require('path');
+var os = require('os');
 
-describe("GIT parser and getter", function () {
-    it("should correctly parse an https url", function() {
-        var parts = git.parseUrl("git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test.md");
+var Git = require('../lib/utils/git');
 
-        should.exist(parts);
-        parts.host.should.be.equal("https://gist.github.com/69ea4542e4c8967d2fa7.git");
-        parts.ref.should.be.equal("master");
-        parts.filepath.should.be.equal("test.md");
-    });
+describe('Git', function() {
 
-    it("should correctly parse an https url with a reference", function() {
-        var parts = git.parseUrl("git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test.md#0.1.2");
+    describe('URL parsing', function() {
 
-        should.exist(parts);
-        parts.host.should.be.equal("https://gist.github.com/69ea4542e4c8967d2fa7.git");
-        parts.ref.should.be.equal("0.1.2");
-        parts.filepath.should.be.equal("test.md");
-    });
+        it('should correctly validate git urls', function() {
+            // HTTPS
+            Git.isUrl('git+https://github.com/Hello/world.git').should.be.ok();
+
+            // SSH
+            Git.isUrl('git+git@github.com:GitbookIO/gitbook.git/directory/README.md#e1594cde2c32e4ff48f6c4eff3d3d461743d74e1').should.be.ok;
+
+            // Non valid
+            Git.isUrl('https://github.com/Hello/world.git').should.not.be.ok();
+            Git.isUrl('README.md').should.not.be.ok();
+        });
+
+        it('should parse HTTPS urls', function() {
+            var parts = Git.parseUrl('git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test.md');
+
+            should.exist(parts);
+            parts.host.should.be.equal('https://gist.github.com/69ea4542e4c8967d2fa7.git');
+            should(parts.ref).be.equal(null);
+            parts.filepath.should.be.equal('test.md');
+        });
 
-    it("should correctly parse an ssh url", function() {
-        var parts = git.parseUrl("git+git@github.com:GitbookIO/gitbook.git/directory/README.md#e1594cde2c32e4ff48f6c4eff3d3d461743d74e1");
+        it('should parse HTTPS urls with a reference', function() {
+            var parts = Git.parseUrl('git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test.md#1.0.0');
 
-        should.exist(parts);
-        parts.host.should.be.equal("git@github.com:GitbookIO/gitbook.git");
-        parts.ref.should.be.equal("e1594cde2c32e4ff48f6c4eff3d3d461743d74e1");
-        parts.filepath.should.be.equal("directory/README.md");
+            should.exist(parts);
+            parts.host.should.be.equal('https://gist.github.com/69ea4542e4c8967d2fa7.git');
+            parts.ref.should.be.equal('1.0.0');
+            parts.filepath.should.be.equal('test.md');
+        });
+
+        it('should parse SSH urls', function() {
+            var parts = Git.parseUrl('git+git@github.com:GitbookIO/gitbook.git/directory/README.md#e1594cde2c32e4ff48f6c4eff3d3d461743d74e1');
+
+            should.exist(parts);
+            parts.host.should.be.equal('git@github.com:GitbookIO/gitbook.git');
+            parts.ref.should.be.equal('e1594cde2c32e4ff48f6c4eff3d3d461743d74e1');
+            parts.filepath.should.be.equal('directory/README.md');
+        });
     });
+
+    describe('Cloning and resolving', function() {
+        it('should clone an HTTPS url', function() {
+            var git = new Git(path.join(os.tmpdir(), 'test-git-'+Date.now()));
+            return git.resolve('git+https://gist.github.com/69ea4542e4c8967d2fa7.git/test.md')
+            .then(function(filename) {
+                path.extname(filename).should.equal('.md');
+            });
+        });
+    });
+
 });
diff --git a/test/glossary.js b/test/glossary.js
index f0f31a5..d6d1af6 100644
--- a/test/glossary.js
+++ b/test/glossary.js
@@ -1,87 +1,71 @@
-var fs = require("fs");
-var path = require("path");
+var should = require('should');
+var mock = require('./mock');
 
-describe("Glossary", function () {
-    describe("Parsing", function() {
-        var book;
+describe('Glossary', function() {
+    it('should parse empty glossary', function() {
+        return mock.setupDefaultBook({
+            'GLOSSARY.md': ''
+        })
+        .then(function(book) {
+            return book.config.load()
 
-        before(function() {
-            return books.parse("glossary")
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it("should correctly list items", function() {
-            book.should.have.property("glossary");
-            book.glossary.should.have.lengthOf(3);
+            .then(function() {
+                return book.glossary.load();
+            })
+            .then(function() {
+                book.glossary.isEmpty().should.be.true();
+            });
         });
     });
 
-    describe("Generation", function() {
+    describe('Non-empty glossary', function() {
         var book;
 
         before(function() {
-            return books.generate("glossary", "website")
-                .then(function(_book) {
-                    book = _book;
-                });
+            return mock.setupDefaultBook({
+                'GLOSSARY.md': '# Glossary\n\n## Hello World\n\nThis is an entry'
+            })
+            .then(function(_book) {
+                book = _book;
+                return book.config.load();
+            })
+            .then(function() {
+                return book.glossary.load();
+            });
         });
 
-        it("should correctly generate a GLOSSARY.html", function() {
-            book.should.have.file("GLOSSARY.html");
+        it('should not be empty', function() {
+            book.glossary.isEmpty().should.be.false();
         });
 
-        describe("Page Integration", function() {
-            var readme, page;
-
-            before(function() {
-                readme = fs.readFileSync(
-                    path.join(book.options.output, "index.html"),
-                    { encoding: "utf-8" }
-                );
-                page = fs.readFileSync(
-                    path.join(book.options.output, "folder/PAGE.html"),
-                    { encoding: "utf-8" }
-                );
-            });
+        describe('glossary.get', function() {
+            it('should return an existing entry', function() {
+                var entry = book.glossary.get('hello_world');
+                should.exist(entry);
 
-            it("should correctly replaced terms by links", function() {
-                readme.should.be.html({
-                    ".page-inner a[href=\"GLOSSARY.html#test\"]": {
-                        count: 1,
-                        text: "test",
-                        attributes: {
-                            title: "Just a simple and easy to understand test."
-                        }
-                    }
-                });
+                entry.name.should.equal('Hello World');
+                entry.description.should.equal('This is an entry');
+                entry.id.should.equal('hello_world');
             });
 
-            it("should correctly replaced terms by links (relative)", function() {
-                page.should.be.html({
-                    ".page-inner a[href=\"../GLOSSARY.html#test\"]": {
-                        count: 1
-                    }
-                });
+            it('should undefined return non existing entry', function() {
+                var entry = book.glossary.get('cool');
+                should.not.exist(entry);
             });
+        });
 
-            it("should not replace terms in codeblocks", function() {
-                readme.should.be.html({
-                    ".page-inner code a": {
-                        count: 0
-                    }
-                });
+        describe('glossary.find', function() {
+            it('should return an existing entry', function() {
+                var entry = book.glossary.find('HeLLo World');
+                should.exist(entry);
+                entry.id.should.equal('hello_world');
             });
 
-            it("should correctly select the longest term", function() {
-                readme.should.be.html({
-                    ".page-inner a[href=\"GLOSSARY.html#test_long\"]": {
-                        count: 1,
-                        text: "test long"
-                    }
-                });
+            it('should return undefined for non existing entry', function() {
+                var entry = book.glossary.find('Hello');
+                should.not.exist(entry);
             });
         });
     });
 });
+
diff --git a/test/heading.js b/test/heading.js
deleted file mode 100644
index f6d65c3..0000000
--- a/test/heading.js
+++ /dev/null
@@ -1,37 +0,0 @@
-var path = require('path');
-var fs = require('fs');
-
-describe('Headings', function () {
-    var book, PAGE;
-
-    before(function() {
-        return books.generate('headings', 'website')
-        .then(function(_book) {
-            book = _book;
-
-            PAGE = fs.readFileSync(
-                path.join(book.options.output, 'index.html'),
-                { encoding: 'utf-8' }
-            );
-        });
-    });
-
-    describe('IDs', function() {
-        it('should correctly generate an ID', function() {
-            PAGE.should.be.html({
-                'h1#hello-world': {
-                    count: 1
-                }
-            });
-        });
-
-        it('should correctly accept custom ID', function() {
-            PAGE.should.be.html({
-                'h2#hello-custom': {
-                    count: 1
-                }
-            });
-        });
-    });
-});
-
diff --git a/test/helper.js b/test/helper.js
deleted file mode 100644
index bbe82de..0000000
--- a/test/helper.js
+++ /dev/null
@@ -1,78 +0,0 @@
-var os = require('os');
-var path = require('path');
-var Q = require('q');
-var _ = require('lodash');
-
-var fsUtil = require('../lib/utils/fs');
-var Book = require('../').Book;
-var LOG_LEVELS = require('../').LOG_LEVELS;
-
-require('./assertions');
-
-
-var BOOKS = {};
-var TMPDIR = os.tmpdir();
-
-
-// Generate and return a book
-function generateBook(bookId, test, opts) {
-    opts = _.defaults(opts || {}, {
-        prepare: function() {}
-    });
-
-    return parseBook(bookId, test, opts)
-    .then(function(book) {
-
-        return Q(opts.prepare(book))
-        .then(function() {
-            return book.generate(test);
-        })
-        .thenResolve(book);
-    });
-}
-
-// Generate and return a book
-function parseBook(bookId, test, opts) {
-    opts = _.defaults(opts || {}, {
-        testId: ''
-    });
-
-    test = test || 'website';
-    var testId = [test, opts.testId].join('-');
-
-    BOOKS[bookId] = BOOKS[bookId] || {};
-    if (BOOKS[bookId][testId]) return Q(BOOKS[bookId][testId]);
-
-    BOOKS[bookId][testId] = new Book(path.resolve(__dirname, 'books', bookId), {
-        logLevel: LOG_LEVELS.DISABLED,
-        config: {
-            output: path.resolve(TMPDIR, bookId+'-'+testId)
-        }
-    });
-
-    return BOOKS[bookId][testId].parse()
-    .then(function() {
-        return BOOKS[bookId][testId];
-    });
-}
-
-
-global.books = {
-    parse: parseBook,
-    generate: generateBook
-};
-
-// Cleanup all tests
-after(function() {
-    return _.chain(BOOKS)
-        .map(function(types) {
-            return _.values(types);
-        })
-        .flatten()
-        .reduce(function(prev, book) {
-            return prev.then(function() {
-                return fsUtil.remove(book.options.output);
-            });
-        }, Q())
-        .value();
-});
diff --git a/test/images.js b/test/images.js
deleted file mode 100644
index de45066..0000000
--- a/test/images.js
+++ /dev/null
@@ -1,58 +0,0 @@
-var fs = require("fs");
-var _ = require("lodash");
-var path = require("path");
-var cheerio = require("cheerio");
-
-describe("Images", function () {
-    var book, readme, $, $img, srcs;
-
-    before(function() {
-        return books.generate("images", "ebook")
-            .then(function(_book) {
-                book = _book;
-
-                readme = fs.readFileSync(
-                    path.join(book.options.output, "index.html"),
-                    { encoding: "utf-8" }
-                );
-                $ = cheerio.load(readme);
-                $img = $("img");
-                srcs = $img.map(function() {
-                    return $(this).attr("src");
-                });
-            });
-    });
-
-    it("should detect all images", function() {
-        _.uniq(srcs).should.have.lengthOf(4);
-    });
-
-    it("should keep image tags", function() {
-        srcs.should.have.lengthOf(5);
-    });
-
-    it("should not have .svg files", function() {
-        _.each(srcs, function(src) {
-            path.extname(src).should.not.equal(".svg");
-        });
-    });
-
-    it("should correctly convert svg images to png", function() {
-        _.each(srcs, function(src) {
-            book.should.have.file(src);
-        });
-    });
-
-    it("should handle relative paths", function() {
-        var PAGE = fs.readFileSync(
-            path.join(book.options.output, "folder/PAGE.html"),
-            { encoding: "utf-8" }
-        );
-
-        PAGE.should.be.html({
-            "img[src=\"../test.png\"]": {
-                count: 1
-            }
-        });
-    });
-});
diff --git a/test/init.js b/test/init.js
deleted file mode 100644
index 625d77c..0000000
--- a/test/init.js
+++ /dev/null
@@ -1,24 +0,0 @@
-var fs = require('fs');
-var path = require('path');
-var should = require('should');
-
-var Book = require('../').Book;
-var LOG_LEVELS = require('../').LOG_LEVELS;
-
-describe('Init Books', function () {
-    var initRoot;
-
-    before(function() {
-        initRoot = path.resolve(__dirname, 'books/init');
-        return Book.init(initRoot, {
-            logLevel: LOG_LEVELS.DISABLED
-        });
-    });
-
-    it('should create all chapters', function() {
-        should(fs.existsSync(path.resolve(initRoot, 'hello.md'))).be.ok();
-        should(fs.existsSync(path.resolve(initRoot, 'hello2.md'))).be.ok();
-        should(fs.existsSync(path.resolve(initRoot, 'hello3/hello4.md'))).be.ok();
-        should(fs.existsSync(path.resolve(initRoot, 'hello3/hello5/hello6.md'))).be.ok();
-    });
-});
diff --git a/test/json.js b/test/json.js
deleted file mode 100644
index 60baf9a..0000000
--- a/test/json.js
+++ /dev/null
@@ -1,92 +0,0 @@
-var fs = require('fs');
-var path = require('path');
-
-describe('JSON generator', function () {
-    describe('Basic Book', function() {
-        var book;
-
-        before(function() {
-            return books.generate('basic', 'json')
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it('should correctly output a README.json', function() {
-            book.should.have.file('README.json');
-        });
-
-        it('should output a valid json', function() {
-            book.should.have.jsonfile('README.json');
-        });
-
-        describe('Page Format', function() {
-            var page;
-
-            before(function() {
-                page = JSON.parse(
-                    fs.readFileSync(
-                        path.join(book.options.output, 'README.json'),
-                        { encoding: 'utf-8' }
-                    )
-                );
-            });
-
-            it('should contains valid section', function() {
-                page.should.have.property('sections').with.lengthOf(1);
-                page.sections[0].should.have.property('content').which.is.a.String();
-                page.sections[0].should.have.property('type', 'normal');
-            });
-
-            it('should contains valid progress', function() {
-                page.should.have.property('progress');
-                page.progress.should.have.property('chapters').with.lengthOf(1);
-                page.progress.should.have.property('current');
-            });
-
-            it('should contains no languages', function() {
-                page.should.have.property('langs').with.lengthOf(0);
-            });
-        });
-    });
-
-    describe('Multilingual Book', function() {
-        var book;
-
-        before(function() {
-            return books.generate('languages', 'json')
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it('should correctly output READMEs', function() {
-            book.should.have.file('README.json');
-            book.should.have.file('en/README.json');
-            book.should.have.file('fr/README.json');
-        });
-
-        it('should output valid json', function() {
-            book.should.have.jsonfile('README.json');
-            book.should.have.jsonfile('en/README.json');
-            book.should.have.jsonfile('fr/README.json');
-        });
-
-        describe('Page Format', function() {
-            var page;
-
-            before(function() {
-                page = JSON.parse(
-                    fs.readFileSync(
-                        path.join(book.options.output, 'README.json'),
-                        { encoding: 'utf-8' }
-                    )
-                );
-            });
-
-            it('should contains no languages', function() {
-                page.should.have.property('langs').with.lengthOf(2);
-            });
-        });
-    });
-});
diff --git a/test/langs.js b/test/langs.js
new file mode 100644
index 0000000..91dbd5a
--- /dev/null
+++ b/test/langs.js
@@ -0,0 +1,46 @@
+var mock = require('./mock');
+
+describe('Langs', function() {
+    it('should parse empty langs', function() {
+        return mock.setupDefaultBook({
+            'LANGS.md': ''
+        })
+        .then(function(book) {
+            return book.config.load()
+
+            .then(function() {
+                return book.langs.load();
+            })
+
+            .then(function() {
+                book.langs.count().should.equal(0);
+            });
+        });
+    });
+
+    describe('Non-empty languages list', function() {
+        var book;
+
+        before(function() {
+            return mock.setupDefaultBook({
+                'LANGS.md': '# Languages\n\n'
+                    + '* [en](./en)\n'
+                    + '* [fr](./fr)\n\n'
+            })
+            .then(function(_book) {
+                book = _book;
+
+                return book.langs.load();
+            });
+        });
+
+        it('should correctly count languages', function() {
+            book.langs.count().should.equal(2);
+        });
+
+        it('should correctly define book as multilingual', function() {
+            book.isMultilingual().should.equal(true);
+        });
+    });
+});
+
diff --git a/test/languages.js b/test/languages.js
deleted file mode 100644
index 0bde347..0000000
--- a/test/languages.js
+++ /dev/null
@@ -1,37 +0,0 @@
-describe("Languages", function () {
-    describe("Parsing", function() {
-        var book;
-
-        before(function() {
-            return books.parse("languages")
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it("should correctly list languages", function() {
-            book.should.have.property("books");
-            book.books.should.have.lengthOf(2);
-
-            book.books[0].options.language.should.be.equal("en");
-            book.books[1].options.language.should.be.equal("fr");
-        });
-    });
-
-    describe("Generation", function() {
-        var book;
-
-        before(function() {
-            return books.generate("languages", "website")
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it("should correctly create books", function() {
-            book.should.have.file("index.html");
-            book.should.have.file("en/index.html");
-            book.should.have.file("fr/index.html");
-        });
-    });
-});
diff --git a/test/links.js b/test/links.js
deleted file mode 100644
index baca9d1..0000000
--- a/test/links.js
+++ /dev/null
@@ -1,63 +0,0 @@
-var fs = require("fs");
-var path = require("path");
-var cheerio = require("cheerio");
-
-var links = require("../lib/utils/links");
-
-describe("Links", function () {
-    it("should correctly test external links", function() {
-        links.isExternal("http://google.fr").should.be.exactly(true);
-        links.isExternal("https://google.fr").should.be.exactly(true);
-        links.isExternal("test.md").should.be.exactly(false);
-        links.isExternal("folder/test.md").should.be.exactly(false);
-        links.isExternal("/folder/test.md").should.be.exactly(false);
-    });
-
-    it("should correctly detect anchor links", function() {
-        links.isAnchor("#test").should.be.exactly(true);
-        links.isAnchor(" #test").should.be.exactly(true);
-        links.isAnchor("https://google.fr#test").should.be.exactly(false);
-        links.isAnchor("test.md#test").should.be.exactly(false);
-    });
-
-    describe("toAbsolute", function() {
-        it("should correctly transform as absolute", function() {
-            links.toAbsolute("http://google.fr").should.be.equal("http://google.fr");
-            links.toAbsolute("test.md", "./", "./").should.be.equal("test.md");
-            links.toAbsolute("folder/test.md", "./", "./").should.be.equal("folder/test.md");
-        });
-
-        it("should correctly handle windows path", function() {
-            links.toAbsolute("folder\\test.md", "./", "./").should.be.equal("folder/test.md");
-        });
-
-        it("should correctly handle absolute path", function() {
-            links.toAbsolute("/test.md", "./", "./").should.be.equal("test.md");
-            links.toAbsolute("/test.md", "test", "test").should.be.equal("../test.md");
-            links.toAbsolute("/sub/test.md", "test", "test").should.be.equal("../sub/test.md");
-        });
-    });
-
-    describe("page", function() {
-        var book;
-
-        before(function() {
-            return books.generate("links", "website")
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it("should correctly replace relative links", function() {
-            var readme = fs.readFileSync(
-                path.join(book.options.output, "folder1/index.html"),
-                { encoding: "utf-8" }
-            );
-            var $ = cheerio.load(readme);
-            var $a = $(".page-inner a");
-
-            $a.attr("href").should.be.exactly("../folder2/index.html");
-        });
-    });
-
-});
diff --git a/test/locate.js b/test/locate.js
new file mode 100644
index 0000000..609f2da
--- /dev/null
+++ b/test/locate.js
@@ -0,0 +1,28 @@
+var path = require('path');
+
+var Book = require('../').Book;
+var mock = require('./mock');
+
+describe('Locate', function() {
+    it('should use root folder if no .gitbook', function() {
+        return mock.setupFS({
+            'README.md': '# Hello'
+        })
+        .then(function(root) {
+            return Book.locate(mock.fs, root)
+                .should.be.fulfilledWith(root);
+        });
+    });
+
+    it('should use resolve using .gitbook', function() {
+        return mock.setupFS({
+            'README.md': '# Hello',
+            '.gitbook': './docs'
+        })
+        .then(function(root) {
+            return Book.locate(mock.fs, root)
+                .should.be.fulfilledWith(path.resolve(root, 'docs'));
+        });
+    });
+
+});
diff --git a/test/location.js b/test/location.js
new file mode 100644
index 0000000..3e2294e
--- /dev/null
+++ b/test/location.js
@@ -0,0 +1,55 @@
+var location = require('../lib/utils/location');
+
+describe('Location', function() {
+    it('should correctly test external location', function() {
+        location.isExternal('http://google.fr').should.be.exactly(true);
+        location.isExternal('https://google.fr').should.be.exactly(true);
+        location.isExternal('test.md').should.be.exactly(false);
+        location.isExternal('folder/test.md').should.be.exactly(false);
+        location.isExternal('/folder/test.md').should.be.exactly(false);
+    });
+
+    it('should correctly detect anchor location', function() {
+        location.isAnchor('#test').should.be.exactly(true);
+        location.isAnchor(' #test').should.be.exactly(true);
+        location.isAnchor('https://google.fr#test').should.be.exactly(false);
+        location.isAnchor('test.md#test').should.be.exactly(false);
+    });
+
+    describe('.relative', function() {
+        it('should resolve to a relative path (same folder)', function() {
+            location.relative('links/', 'links/test.md').should.equal('test.md');
+        });
+
+        it('should resolve to a relative path (parent folder)', function() {
+            location.relative('links/', 'test.md').should.equal('../test.md');
+        });
+
+        it('should resolve to a relative path (child folder)', function() {
+            location.relative('links/', 'links/hello/test.md').should.equal('hello/test.md');
+        });
+    });
+
+    describe('.toAbsolute', function() {
+        it('should correctly transform as absolute', function() {
+            location.toAbsolute('http://google.fr').should.be.equal('http://google.fr');
+            location.toAbsolute('test.md', './', './').should.be.equal('test.md');
+            location.toAbsolute('folder/test.md', './', './').should.be.equal('folder/test.md');
+        });
+
+        it('should correctly handle windows path', function() {
+            location.toAbsolute('folder\\test.md', './', './').should.be.equal('folder/test.md');
+        });
+
+        it('should correctly handle absolute path', function() {
+            location.toAbsolute('/test.md', './', './').should.be.equal('test.md');
+            location.toAbsolute('/test.md', 'test', 'test').should.be.equal('../test.md');
+            location.toAbsolute('/sub/test.md', 'test', 'test').should.be.equal('../sub/test.md');
+            location.toAbsolute('/test.png', 'folder', '').should.be.equal('test.png');
+        });
+
+        it('should correctly handle absolute path (windows)', function() {
+            location.toAbsolute('\\test.png', 'folder', '').should.be.equal('test.png');
+        });
+    });
+});
diff --git a/test/mock.js b/test/mock.js
new file mode 100644
index 0000000..5ff9f63
--- /dev/null
+++ b/test/mock.js
@@ -0,0 +1,116 @@
+/* eslint-disable no-console */
+
+var Q = require('q');
+var _ = require('lodash');
+var tmp = require('tmp');
+var path = require('path');
+
+var Book = require('../').Book;
+var NodeFS = require('../lib/fs/node');
+var fs = require('../lib/utils/fs');
+
+require('./assertions');
+
+// Create filesystem instance for testing
+var nodeFS = new NodeFS();
+
+function setupFS(files) {
+    return Q.nfcall(tmp.dir.bind(tmp)).get(0)
+    .then(function(rootFolder) {
+        return _.chain(_.pairs(files))
+            .sortBy(0)
+            .reduce(function(prev, pair) {
+                return prev.then(function() {
+                    var filename = path.resolve(rootFolder, pair[0]);
+                    var buf = pair[1];
+
+                    if (_.isObject(buf)) buf = JSON.stringify(buf);
+                    if (_.isString(buf)) buf = new Buffer(buf, 'utf-8');
+
+                    return fs.mkdirp(path.dirname(filename))
+                    .then(function() {
+                        return fs.writeFile(filename, buf);
+                    });
+                });
+            }, Q())
+            .value()
+            .then(function() {
+                return rootFolder;
+            });
+    });
+}
+
+// Setup a mock book for testing using a map of files
+function setupBook(files, opts) {
+    opts = opts || {};
+    opts.log = function() { };
+
+    return setupFS(files)
+    .then(function(folder) {
+        opts.fs = nodeFS;
+        opts.root = folder;
+
+        return new Book(opts);
+    });
+}
+
+// Setup a book with default README/SUMMARY
+function setupDefaultBook(files, summary, opts) {
+    var summaryContent = '# Summary \n\n' +
+        _.map(summary, function(article) {
+            return '* [' + article.title +'](' + article.path + ')';
+        })
+        .join('\n');
+
+    return setupBook(_.defaults(files || {}, {
+        'README.md': 'Hello',
+        'SUMMARY.md': summaryContent
+    }), opts);
+}
+
+// Output a book with a specific generator
+function outputDefaultBook(Output, files, summary, opts) {
+    return setupDefaultBook(files, summary, opts)
+    .then(function(book) {
+        // Parse the book
+        return book.parse()
+
+        // Start generation
+        .then(function() {
+            var output = new Output(book);
+            return output.generate()
+                .thenResolve(output);
+        });
+    });
+}
+
+// Output a book with a specific generator
+function outputBook(Output, files, opts) {
+    return setupBook(files, opts)
+    .then(function(book) {
+        // Parse the book
+        return book.parse()
+
+        // Start generation
+        .then(function() {
+            var output = new Output(book);
+            return output.generate()
+                .thenResolve(output);
+        });
+    });
+}
+
+// Log an error
+function logError(err) {
+    console.log(err.stack || err);
+}
+
+module.exports = {
+    fs: nodeFS,
+    setupFS: setupFS,
+    setupBook: setupBook,
+    outputBook: outputBook,
+    setupDefaultBook: setupDefaultBook,
+    outputDefaultBook: outputDefaultBook,
+    logError: logError
+};
diff --git a/test/navigation.js b/test/navigation.js
deleted file mode 100644
index 9118b3c..0000000
--- a/test/navigation.js
+++ /dev/null
@@ -1,61 +0,0 @@
-var should = require("should");
-
-describe("Navigation", function () {
-    var book;
-
-    before(function() {
-        return books.parse("summary")
-            .then(function(_book) {
-                book = _book;
-            });
-    });
-
-    it("should correctly parse navigation as a map", function() {
-        book.should.have.property("navigation");
-        book.navigation.should.have.property("README.md");
-        book.navigation.should.have.property("README.md");
-    });
-
-    it("should correctly include filenames", function() {
-        book.navigation.should.have.property("README.md");
-        book.navigation.should.have.property("PAGE1.md");
-        book.navigation.should.have.property("folder/PAGE2.md");
-        book.navigation.should.not.have.property("NOTFOUND.md");
-    });
-
-    it("should correctly detect next/prev for README", function() {
-        var README = book.navigation["README.md"];
-
-        README.index.should.equal(0);
-        README.should.have.property("next");
-        should(README.prev).not.be.ok();
-
-        README.next.should.have.property("path");
-        README.next.path.should.equal("PAGE1.md");
-    });
-
-    it("should correctly detect next/prev a page", function() {
-        var PAGE = book.navigation["PAGE1.md"];
-
-        PAGE.index.should.equal(1);
-        PAGE.should.have.property("next");
-        PAGE.should.have.property("prev");
-
-        PAGE.prev.should.have.property("path");
-        PAGE.prev.path.should.equal("README.md");
-
-        PAGE.next.should.have.property("path");
-        PAGE.next.path.should.equal("folder/PAGE2.md");
-    });
-
-    it("should correctly detect next/prev for last page", function() {
-        var PAGE = book.navigation["folder/PAGE2.md"];
-
-        PAGE.index.should.equal(2);
-        PAGE.should.have.property("prev");
-        should(PAGE.next).not.be.ok();
-
-        PAGE.prev.should.have.property("path");
-        PAGE.prev.path.should.equal("PAGE1.md");
-    });
-});
diff --git a/test/node_modules/gitbook-plugin-test-blocks/index.js b/test/node_modules/gitbook-plugin-test-blocks/index.js
new file mode 100644
index 0000000..7104006
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-blocks/index.js
@@ -0,0 +1,21 @@
+var should = require('should');
+
+module.exports = {
+    blocks: {
+        // Simple test
+        hello: function(blk) {
+            return 'Hello ' + blk.body + '!';
+        },
+
+        // Test using the conetxt "this"
+        testContext: function(s) {
+            this.should.have.property('config');
+            this.should.have.property('log');
+            this.should.have.property('options');
+            this.should.have.property('resolve').which.is.a.function;
+            this.should.have.property('book').which.equal(this);
+
+            return 'Hello ' + s + '!';
+        }
+    }
+};
diff --git a/test/node_modules/gitbook-plugin-test-blocks/package.json b/test/node_modules/gitbook-plugin-test-blocks/package.json
new file mode 100644
index 0000000..a756fb5
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-blocks/package.json
@@ -0,0 +1,7 @@
+{
+    "name": "gitbook-plugin-test-blocks",
+    "version": "1.0.0",
+    "engines": {
+        "gitbook": "*"
+    }
+}
\ No newline at end of file
diff --git a/test/plugins/config/index.js b/test/node_modules/gitbook-plugin-test-config/index.js
index f053ebf..f053ebf 100644
--- a/test/plugins/config/index.js
+++ b/test/node_modules/gitbook-plugin-test-config/index.js
diff --git a/test/node_modules/gitbook-plugin-test-config/package.json b/test/node_modules/gitbook-plugin-test-config/package.json
new file mode 100644
index 0000000..74bb953
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-config/package.json
@@ -0,0 +1,21 @@
+{
+    "name": "gitbook-plugin-test-config",
+    "version": "1.0.0",
+    "engines": {
+        "gitbook": "*"
+    },
+    "gitbook": {
+        "properties": {
+            "myProperty": {
+                "type": "string",
+                "required": true,
+                "title": "This is a required property"
+            },
+            "myDefaultProperty": {
+                "type": "string",
+                "default": "hello",
+                "title": "This is a required property"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/test/node_modules/gitbook-plugin-test-filters/index.js b/test/node_modules/gitbook-plugin-test-filters/index.js
new file mode 100644
index 0000000..71f2752
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-filters/index.js
@@ -0,0 +1,21 @@
+var should = require('should');
+
+module.exports = {
+    filters: {
+        // Simple test
+        hello: function(s) {
+            return 'Hello ' + s + '!';
+        },
+
+        // Test using the conetxt "this"
+        testContext: function(s) {
+            this.should.have.property('config');
+            this.should.have.property('log');
+            this.should.have.property('options');
+            this.should.have.property('resolve').which.is.a.function;
+            this.should.have.property('book').which.equal(this);
+
+            return 'Hello ' + s + '!';
+        }
+    }
+};
diff --git a/test/node_modules/gitbook-plugin-test-filters/package.json b/test/node_modules/gitbook-plugin-test-filters/package.json
new file mode 100644
index 0000000..d555d06
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-filters/package.json
@@ -0,0 +1,7 @@
+{
+    "name": "gitbook-plugin-test-filters",
+    "version": "1.0.0",
+    "engines": {
+        "gitbook": "*"
+    }
+}
\ No newline at end of file
diff --git a/test/node_modules/gitbook-plugin-test-hooks/index.js b/test/node_modules/gitbook-plugin-test-hooks/index.js
new file mode 100644
index 0000000..c0666ca
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-hooks/index.js
@@ -0,0 +1,16 @@
+var should = require('should');
+
+module.exports = {
+    hooks: {
+        'init': function() {
+            global._hooks = [];
+            global._hooks.push('init');
+        },
+        'finish': function() {
+            global._hooks.push('finish');
+        },
+        'finish:before': function() {
+            global._hooks.push('finish:before');
+        }
+    }
+};
diff --git a/test/node_modules/gitbook-plugin-test-hooks/package.json b/test/node_modules/gitbook-plugin-test-hooks/package.json
new file mode 100644
index 0000000..adb12a8
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-hooks/package.json
@@ -0,0 +1,7 @@
+{
+    "name": "gitbook-plugin-test-hooks",
+    "version": "1.0.0",
+    "engines": {
+        "gitbook": "*"
+    }
+}
\ No newline at end of file
diff --git a/test/node_modules/gitbook-plugin-test-resources/index.js b/test/node_modules/gitbook-plugin-test-resources/index.js
new file mode 100644
index 0000000..e95e411
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-resources/index.js
@@ -0,0 +1,12 @@
+module.exports = {
+    book: {
+        assets: './assets',
+        js: [
+            'myfile.js',
+            'https://ajax.googleapis.com/ajax/libs/angularjs/1.4.9/angular.min.js'
+        ],
+        css: [
+            'myfile.css'
+        ]
+    }
+};
diff --git a/test/node_modules/gitbook-plugin-test-resources/package.json b/test/node_modules/gitbook-plugin-test-resources/package.json
new file mode 100644
index 0000000..606de31
--- /dev/null
+++ b/test/node_modules/gitbook-plugin-test-resources/package.json
@@ -0,0 +1,7 @@
+{
+    "name": "gitbook-plugin-test-resources",
+    "version": "1.0.0",
+    "engines": {
+        "gitbook": "*"
+    }
+}
\ No newline at end of file
diff --git a/test/output-ebook.js b/test/output-ebook.js
new file mode 100644
index 0000000..c43fc55
--- /dev/null
+++ b/test/output-ebook.js
@@ -0,0 +1,33 @@
+var mock = require('./mock');
+var EbookOutput = require('../lib/output/ebook');
+
+describe('Ebook Output', function() {
+    describe('Sample Book', function() {
+        var output;
+
+        before(function() {
+            return mock.outputDefaultBook(EbookOutput)
+            .then(function(_output) {
+                output = _output;
+            });
+        });
+
+        it('should correctly generate an index.html', function() {
+            output.should.have.file('index.html');
+        });
+
+        it('should correctly generate a SUMMARY.html', function() {
+            output.should.have.file('index.html');
+        });
+
+        it('should correctly copy assets', function() {
+            output.should.have.file('gitbook/ebook.css');
+        });
+
+        it('should correctly copy plugins', function() {
+            output.should.have.file('gitbook/gitbook-plugin-highlight/ebook.css');
+        });
+
+    });
+
+});
diff --git a/test/output-json.js b/test/output-json.js
new file mode 100644
index 0000000..1006dab
--- /dev/null
+++ b/test/output-json.js
@@ -0,0 +1,49 @@
+var mock = require('./mock');
+var JSONOutput = require('../lib/output/json');
+
+describe('JSON Output', function() {
+
+    describe('Sample book', function() {
+        var output;
+
+        before(function() {
+            return mock.outputDefaultBook(JSONOutput)
+            .then(function(_output) {
+                output = _output;
+            });
+        });
+
+        it('should correctly generate a README.json', function() {
+            output.should.have.file('README.json');
+        });
+
+    });
+
+    describe('Multilingual Book', function() {
+        var output;
+
+        before(function() {
+            return mock.outputBook(JSONOutput, {
+                'LANGS.md': '# Languages\n\n'
+                    + '* [en](./en)\n'
+                    + '* [fr](./fr)\n\n',
+                'en/README.md': '# Hello',
+                'fr/README.md': '# Bonjour'
+
+            })
+            .then(function(_output) {
+                output = _output;
+            });
+        });
+
+        it('should correctly generate a README.json for each language', function() {
+            output.should.have.file('en/README.json');
+            output.should.have.file('fr/README.json');
+        });
+
+        it('should correctly generate a README.json for the whole book', function() {
+            output.should.have.file('README.json');
+        });
+    });
+});
+
diff --git a/test/output-website.js b/test/output-website.js
new file mode 100644
index 0000000..19459b3
--- /dev/null
+++ b/test/output-website.js
@@ -0,0 +1,99 @@
+var mock = require('./mock');
+var WebsiteOutput = require('../lib/output/website');
+
+describe('Website Output', function() {
+
+    describe('Sample Book', function() {
+        var output;
+
+        before(function() {
+            return mock.outputDefaultBook(WebsiteOutput)
+            .then(function(_output) {
+                output = _output;
+            });
+        });
+
+        it('should correctly generate an index.html', function() {
+            output.should.have.file('index.html');
+        });
+
+        it('should correctly copy assets', function() {
+            output.should.have.file('gitbook/app.js');
+            output.should.have.file('gitbook/images/favicon.ico');
+        });
+
+        it('should correctly copy plugins', function() {
+            output.should.have.file('gitbook/gitbook-plugin-highlight/website.css');
+        });
+    });
+
+    describe('Book with chapters', function() {
+        var output;
+
+        before(function() {
+            return mock.outputDefaultBook(WebsiteOutput, {
+                'hello/README.md': '# Hello',
+                'hello/test.md': '# Test'
+            }, [
+                {
+                    title: 'Hello',
+                    path: 'hello/README.md'
+                },
+                {
+                    title: 'Test',
+                    path: 'hello/test.md'
+                }
+            ])
+            .then(function(_output) {
+                output = _output;
+            });
+        });
+
+        it('should correctly generate an index.html', function() {
+            output.should.have.file('index.html');
+        });
+
+        it('should correctly generate files in folder', function() {
+            output.should.have.file('hello/index.html');
+            output.should.have.file('hello/test.html');
+        });
+    });
+
+    describe('Multilingual Book', function() {
+        var output;
+
+        before(function() {
+            return mock.outputBook(WebsiteOutput, {
+                'LANGS.md': '# Languages\n\n'
+                    + '* [en](./en)\n'
+                    + '* [fr](./fr)\n\n',
+                'en/README.md': '# Hello',
+                'fr/README.md': '# Bonjour'
+
+            })
+            .then(function(_output) {
+                output = _output;
+            });
+        });
+
+        it('should correctly generate an index.html for each language', function() {
+            output.should.have.file('en/index.html');
+            output.should.have.file('fr/index.html');
+        });
+
+        it('should correctly copy assets', function() {
+            output.should.have.file('gitbook/app.js');
+        });
+
+        it('should not copy assets for each language', function() {
+            output.should.have.not.file('en/gitbook/app.js');
+            output.should.have.not.file('fr/gitbook/app.js');
+        });
+
+        it('should correctly generate an index.html', function() {
+            output.should.have.file('index.html');
+        });
+    });
+
+});
+
diff --git a/test/page.js b/test/page.js
new file mode 100644
index 0000000..ae36660
--- /dev/null
+++ b/test/page.js
@@ -0,0 +1,399 @@
+var mock = require('./mock');
+var Output = require('../lib/output/base');
+
+describe('Page', function() {
+    var book, output;
+
+    before(function() {
+        return mock.setupDefaultBook({
+            'README.md': ' # Hello World\n\nThis is a description',
+            'heading.md': '# Hello\n\n## World',
+            'description.md': '# This is a title\n\nThis is the short description.\n\nNot this one.',
+            'frontmatter.md': '---\ndescription: Hello World\n---\n\n# This is a title\n\nThis is not the description',
+
+            'links.md': '[link](hello.md) [link 2](variables/page/next.md) [readme](README.md)',
+            'links/relative.md': '[link](../hello.md) [link 2](/variables/page/next.md) [readme](../README.md)',
+
+            'images.md': '![this is an image](test.png) ![this is an absolute image](/test2.png) ![this is a remote image](https://upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png)',
+            'images/relative.md': '![this is an image](test.png) ![this is an absolute image](/test2.png)',
+
+            'annotations/simple.md': 'A magicien say abracadabra!',
+            'annotations/code.md': 'A magicien say `abracadabra`!',
+            'annotations/class.md': 'A magicien say <div class="no-glossary"><b>abracadabra</b>, right?</div>!',
+
+            'codes/simple.md': '```hello world```',
+            'codes/lang.md': '```js\nhello world\n```',
+            'codes/lang.adoc': '```js\nhello world\n```',
+
+            'folder/paths.md': '',
+
+            'variables/file/mtime.md': '{{ file.mtime }}',
+            'variables/file/path.md': '{{ file.path }}',
+            'variables/page/title.md': '{{ page.title }}',
+            'variables/page/previous.md': '{{ page.previous.title }} {{ page.previous.path }}',
+            'variables/page/next.md': '{{ page.next.title }} {{ page.next.path }}',
+            'variables/page/dir/ltr.md': 'This is english: {{ page.dir }}',
+            'variables/page/dir/rtl.md': 'بسيطة {{ page.dir }}',
+            'variables/config/title.md': '{{ config.title}}',
+
+            'GLOSSARY.md': '# Glossary\n\n\n## abracadabra\n\nthis is the description'
+        }, [
+            {
+                title: 'Test page.next',
+                path: 'variables/page/next.md'
+            },
+            {
+                title: 'Test Variables',
+                path: 'variables/page/title.md'
+            },
+            {
+                title: 'Test page.previous',
+                path: 'variables/page/previous.md'
+            }
+        ])
+        .then(function(_book) {
+            book = _book;
+            output = new Output(book);
+
+            return book.parse();
+        });
+    });
+
+    describe('.resolveLocal', function() {
+        it('should correctly resolve path to file', function() {
+            var page = book.addPage('heading.md');
+
+            page.resolveLocal('test.png').should.equal('test.png');
+            page.resolveLocal('/test.png').should.equal('test.png');
+            page.resolveLocal('test/hello.png').should.equal('test/hello.png');
+            page.resolveLocal('/test/hello.png').should.equal('test/hello.png');
+        });
+
+        it('should correctly resolve path to file (2)', function() {
+            var page = book.addPage('folder/paths.md');
+
+            page.resolveLocal('test.png').should.equal('folder/test.png');
+            page.resolveLocal('/test.png').should.equal('test.png');
+            page.resolveLocal('test/hello.png').should.equal('folder/test/hello.png');
+            page.resolveLocal('/test/hello.png').should.equal('test/hello.png');
+        });
+    });
+
+    describe('.relative', function() {
+        it('should correctly resolve absolute path in the book', function() {
+            var page = book.addPage('heading.md');
+            page.relative('/test.png').should.equal('test.png');
+            page.relative('test.png').should.equal('test.png');
+
+            var page2 = book.addPage('folder/paths.md');
+            page2.relative('/test.png').should.equal('../test.png');
+            page2.relative('test.png').should.equal('../test.png');
+        });
+    });
+
+    describe('.resolve', function() {
+        var page;
+
+        before(function() {
+            page = book.addPage('links/relative.md');
+        });
+
+        it('should resolve to a relative path (same folder)', function() {
+            page.relative('links/test.md').should.equal('test.md');
+        });
+
+        it('should resolve to a relative path (parent folder)', function() {
+            page.relative('test.md').should.equal('../test.md');
+            page.relative('hello/test.md').should.equal('../hello/test.md');
+        });
+
+        it('should resolve to a relative path (child folder)', function() {
+            page.relative('links/hello/test.md').should.equal('hello/test.md');
+        });
+    });
+
+    describe('Headings', function() {
+        it('should add a default ID to headings', function() {
+            var page = book.addPage('heading.md');
+
+            return page.toHTML(output)
+            .then(function() {
+                page.content.should.be.html({
+                    'h1#hello': {
+                        count: 1
+                    },
+                    'h2#world': {
+                        count: 1
+                    }
+                });
+            });
+        });
+    });
+
+    describe('Description', function() {
+        it('should extratc page description from content', function() {
+            var page = book.addPage('description.md');
+
+            return page.toHTML(output)
+            .then(function() {
+                page.description.should.equal('This is the short description.');
+            });
+        });
+    });
+
+    describe('Font-Matter', function() {
+        it('should extratc page description from front matter', function() {
+            var page = book.addPage('frontmatter.md');
+
+            return page.toHTML(output)
+            .then(function() {
+                page.description.should.equal('Hello World');
+            });
+        });
+    });
+
+    describe('Code Blocks', function() {
+        var page;
+
+        before(function() {
+            output.template.addBlock('code', function(blk) {
+                return (blk.kwargs.language || '') + blk.body + 'test';
+            });
+        });
+
+        it('should apply "code" block', function() {
+            page = book.addPage('codes/simple.md');
+            return page.toHTML(output)
+                .should.be.fulfilledWith('<p><code>hello worldtest</code></p>\n');
+        });
+
+        it('should add language as kwargs', function() {
+            page = book.addPage('codes/lang.md');
+            return page.toHTML(output)
+                .should.be.fulfilledWith('<pre><code class="lang-js">jshello world\ntest</code></pre>\n');
+        });
+
+        it('should add language as kwargs (asciidoc)', function() {
+            page = book.addPage('codes/lang.adoc');
+            return page.toHTML(output)
+                .should.be.fulfilledWith('<div class="listingblock">\n<div class="content">\n<pre class="highlight"><code class="language-js" data-lang="js">jshello worldtest</code></pre>\n</div>\n</div>');
+        });
+    });
+
+    describe('Links', function() {
+        describe('From base directory', function() {
+            var page;
+
+            before(function() {
+                page = book.addPage('links.md');
+                return page.toHTML(output);
+            });
+
+            it('should replace links to page to .html', function() {
+                page.content.should.be.html({
+                    'a[href="variables/page/next.html"]': {
+                        count: 1
+                    }
+                });
+            });
+
+            it('should use directory urls when file is a README', function() {
+                page.content.should.be.html({
+                    'a[href="./"]': {
+                        count: 1
+                    }
+                });
+            });
+
+            it('should not replace links to file not in SUMMARY', function() {
+                page.content.should.be.html({
+                    'a[href="hello.md"]': {
+                        count: 1
+                    }
+                });
+            });
+        });
+
+        describe('From sub-directory', function() {
+            var page;
+
+            before(function() {
+                page = book.addPage('links/relative.md');
+                return page.toHTML(output);
+            });
+
+            it('should replace links to page to .html', function() {
+                page.content.should.be.html({
+                    'a[href="../variables/page/next.html"]': {
+                        count: 1
+                    }
+                });
+            });
+
+            it('should use directory urls when file is a README', function() {
+                page.content.should.be.html({
+                    'a[href="../"]': {
+                        count: 1
+                    }
+                });
+            });
+
+            it('should not replace links to file not in SUMMARY', function() {
+                page.content.should.be.html({
+                    'a[href="../hello.md"]': {
+                        count: 1
+                    }
+                });
+            });
+        });
+    });
+
+    describe('Images', function() {
+        describe('From base directory', function() {
+            var page;
+
+            before(function() {
+                page = book.addPage('images.md');
+                return page.toHTML(output);
+            });
+
+            it('should resolve relative images', function() {
+                page.content.should.be.html({
+                    'img[src="test.png"]': {
+                        count: 1
+                    }
+                });
+            });
+
+            it('should resolve absolute images', function() {
+                page.content.should.be.html({
+                    'img[src="test2.png"]': {
+                        count: 1
+                    }
+                });
+            });
+
+            it('should keep external images path', function() {
+                page.content.should.be.html({
+                    'img[src="https:/upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png"]': {
+                        count: 1
+                    }
+                });
+            });
+        });
+
+        describe('From sub-directory', function() {
+            var page;
+
+            before(function() {
+                page = book.addPage('images/relative.md');
+                return page.toHTML(output);
+            });
+
+            it('should resolve relative images', function() {
+                page.content.should.be.html({
+                    'img[src="test.png"]': {
+                        count: 1
+                    }
+                });
+            });
+
+            it('should resolve absolute images', function() {
+                page.content.should.be.html({
+                    'img[src="../test2.png"]': {
+                        count: 1
+                    }
+                });
+            });
+        });
+    });
+
+    describe('Templating Context', function() {
+        it('should set file.mtime', function() {
+            var page = book.addPage('variables/file/mtime.md');
+            return page.toHTML(output)
+            .then(function(content) {
+                // A date ends with "(CET)" or "(UTC)""
+                content.should.endWith(')</p>\n');
+            });
+        });
+
+        it('should set file.path', function() {
+            var page = book.addPage('variables/file/path.md');
+            return page.toHTML(output)
+            .should.be.fulfilledWith('<p>variables/file/path.md</p>\n');
+        });
+
+        it('should set page.title when page is in summary', function() {
+            var page = book.getPage('variables/page/title.md');
+            return page.toHTML(output)
+            .should.be.fulfilledWith('<p>Test Variables</p>\n');
+        });
+
+        it('should set page.previous when possible', function() {
+            var page = book.getPage('variables/page/previous.md');
+            return page.toHTML(output)
+            .should.be.fulfilledWith('<p>Test Variables variables/page/title.md</p>\n');
+        });
+
+        it('should set page.next when possible', function() {
+            var page = book.getPage('variables/page/next.md');
+            return page.toHTML(output)
+            .should.be.fulfilledWith('<p>Test Variables variables/page/title.md</p>\n');
+        });
+
+        it('should set config.title', function() {
+            var page = book.addPage('variables/config/title.md');
+            return page.toHTML(output)
+            .should.be.fulfilledWith('<p>Hello World</p>\n');
+        });
+
+        describe('page.dir', function() {
+            it('should detect ltr', function() {
+                var page = book.addPage('variables/page/dir/ltr.md');
+                return page.toHTML(output)
+                .should.be.fulfilledWith('<p>This is english: ltr</p>\n');
+            });
+
+            it('should detect rtl', function() {
+                var page = book.addPage('variables/page/dir/rtl.md');
+                return page.toHTML(output)
+                .should.be.fulfilledWith('<p>&#x628;&#x633;&#x64A;&#x637;&#x629; rtl</p>\n');
+            });
+        });
+    });
+
+    describe('Annotations / Glossary', function() {
+        it('should replace glossary terms', function() {
+            return book.addPage('annotations/simple.md').toHTML(output)
+            .should.finally.be.html({
+                '.glossary-term': {
+                    count: 1,
+                    text: 'abracadabra',
+                    attributes: {
+                        title: 'this is the description',
+                        href: '../GLOSSARY.html#abracadabra'
+                    }
+                }
+            });
+        });
+
+        it('should not replace terms in code blocks', function() {
+            return book.addPage('annotations/code.md').toHTML(output)
+            .should.finally.be.html({
+                '.glossary-term': {
+                    count: 0
+                }
+            });
+        });
+
+        it('should not replace terms in ".no-glossary"', function() {
+            return book.addPage('annotations/class.md').toHTML(output)
+            .should.finally.be.html({
+                '.glossary-term': {
+                    count: 0
+                }
+            });
+        });
+    });
+});
diff --git a/test/parse.js b/test/parse.js
new file mode 100644
index 0000000..63565ee
--- /dev/null
+++ b/test/parse.js
@@ -0,0 +1,59 @@
+var mock = require('./mock');
+
+describe('Parsing', function() {
+    it('should not fail without SUMMARY', function() {
+        return mock.setupBook({
+            'README.md': ''
+        })
+        .then(function(book) {
+            return book.parse().should.be.fulfilled();
+        });
+    });
+
+    it('should fail without README', function() {
+        return mock.setupBook({
+            'SUMMARY.md': ''
+        })
+        .then(function(book) {
+            return book.parse().should.be.rejected;
+        });
+    });
+
+    it('should add GLOSSARY as a page', function() {
+        return mock.setupDefaultBook({
+            'GLOSSARY.md': ''
+        })
+        .then(function(book) {
+            return book.parse()
+            .then(function() {
+                book.hasPage('GLOSSARY.md').should.equal(true);
+            });
+        });
+    });
+
+    describe('Multilingual book', function() {
+        var book;
+
+        before(function() {
+            return mock.setupBook({
+                'LANGS.md': '# Languages\n\n'
+                    + '* [English](./en)\n'
+                    + '* [French](./fr)\n\n',
+                'en/README.md': '# English',
+                'en/SUMMARY.md': '# Summary',
+                'fr/README.md': '# French',
+                'fr/SUMMARY.md': '# Summary'
+            })
+            .then(function(_book) {
+                book = _book;
+                return book.parse();
+            });
+        });
+
+        it('should list language books', function() {
+            book.isMultilingual().should.equal(true);
+            book.books.should.have.lengthOf(2);
+        });
+    });
+});
+
diff --git a/test/paths.js b/test/paths.js
new file mode 100644
index 0000000..339da51
--- /dev/null
+++ b/test/paths.js
@@ -0,0 +1,17 @@
+var path = require('path');
+var pathUtils = require('../lib/utils/path');
+
+describe('Paths', function() {
+
+    describe('setExtension', function() {
+        it('should correctly change extension of filename', function() {
+            pathUtils.setExtension('test.md', '.html').should.be.equal('test.html');
+            pathUtils.setExtension('test.md', '.json').should.be.equal('test.json');
+        });
+
+        it('should correctly change extension of path', function() {
+            pathUtils.setExtension('hello/test.md', '.html').should.be.equal(path.normalize('hello/test.html'));
+            pathUtils.setExtension('hello/test.md', '.json').should.be.equal(path.normalize('hello/test.json'));
+        });
+    });
+});
diff --git a/test/plugins.js b/test/plugins.js
index 1600d0d..4d9cdf1 100644
--- a/test/plugins.js
+++ b/test/plugins.js
@@ -1,84 +1,103 @@
 var _ = require('lodash');
-var fs = require('fs');
-var should = require('should');
 var path = require('path');
 
-var Plugin = require('../lib/plugin');
-var parsers = require('gitbook-parsers');
-var PLUGINS_ROOT = path.resolve(__dirname, 'plugins');
+var mock = require('./mock');
+var registry = require('../lib/plugins/registry');
+var Output = require('../lib/output/base');
+var PluginsManager = require('../lib/plugins');
+var BookPlugin = require('../lib/plugins/plugin');
 
-describe('Plugins', function () {
+var PLUGINS_ROOT = path.resolve(__dirname, 'node_modules');
+
+describe('Plugins', function() {
     var book;
 
     before(function() {
-        return books.parse('basic')
+        return mock.setupBook({})
         .then(function(_book) {
             book = _book;
         });
     });
 
-    describe('Invalid', function() {
-        var plugin;
-
-        before(function() {
-            plugin = new Plugin(book, 'invalid');
-            plugin.load('./invalid', PLUGINS_ROOT);
-        });
-
-        it('should be detected', function() {
-            should(plugin.isValid()).be.exactly(false);
+    describe('Resolve Version', function() {
+        it('should resolve a plugin version', function() {
+            return registry.resolve('ga')
+            .should.be.fulfilled();
         });
     });
 
-    describe('Empty', function() {
-        var plugin;
-
-        before(function() {
-            plugin = new Plugin(book, 'empty');
-            plugin.load('./empty', PLUGINS_ROOT);
+    describe('Installation', function() {
+        it('should install a plugin from NPM without a specific version', function() {
+            return registry.install(book, 'ga')
+            .should.be.fulfilled();
         });
 
-        it('should valid a plugin', function() {
-            should(plugin.isValid()).be.exactly(true);
+        it('should install a plugin from NPM with a specific version', function() {
+            return registry.install(book, 'ga', '1.0.0')
+            .should.be.fulfilled();
         });
 
-        it('should return an empty list of resources', function() {
-            return plugin.getResources()
-            .then(function(resources) {
-                _.each(Plugin.RESOURCES, function(resName) {
-                    resources[resName].should.have.lengthOf(0);
-                });
+        it('should correctly install all dependencies (if none)', function() {
+            return mock.setupBook({})
+            .then(function(book) {
+                var plugins = new PluginsManager(book);
+                return plugins.install()
+                .should.be.fulfilledWith(0);
             });
         });
-    });
 
-    describe('Configuration', function() {
-        var plugin;
-
-        before(function() {
-            plugin = new Plugin(book, 'testconfig');
-            plugin.load('./config', PLUGINS_ROOT);
-        });
-
-        it('should throw error for invalid configuration', function() {
-            return plugin.validateConfig({})
-            .should.be.rejectedWith('Configuration Error: pluginsConfig.testconfig.testRequired is required');
+        it('should correctly install all dependencies (if any)', function() {
+            return mock.setupBook({
+                'book.json': {
+                    plugins: ['ga']
+                }
+            })
+            .then(function(book) {
+                return book.config.load()
+                .then(function() {
+                    var plugins = new PluginsManager(book);
+                    return plugins.install();
+                });
+            })
+            .should.be.fulfilledWith(1);
         });
+    });
 
-        it('should throw error for invalid types', function() {
-            return plugin.validateConfig({
-                testRequired: 'hello'
-            })
-            .should.be.rejectedWith('Configuration Error: pluginsConfig.testconfig.testRequired is not of a type(s) number');
+    describe('Loading', function() {
+        it('should load default plugins', function() {
+            return mock.outputDefaultBook(Output)
+            .then(function(output) {
+                output.plugins.count().should.be.greaterThan(0);
+            });
         });
+    });
 
-        it('should extend with default values', function() {
-            return plugin.validateConfig({
-                testRequired: 12
+    describe('Configuration', function() {
+        it('should fail loading a plugin with an invalid configuration', function() {
+            var plugin = new BookPlugin(book, 'test-config');
+            return plugin.load(PLUGINS_ROOT)
+                .should.be.rejectedWith('Error with book\'s configuration: pluginsConfig.test-config.myProperty is required');
+        });
+
+        it('should extend configuration with default properties', function() {
+            return mock.setupBook({
+                'book.json': {
+                    pluginsConfig: {
+                        'test-config': {
+                            'myProperty': 'world'
+                        }
+                    }
+                }
             })
-            .should.be.fulfilledWith({
-                hello: 'world',
-                testRequired: 12
+            .then(function(book2) {
+                return book2.config.load()
+                .then(function() {
+                    var plugin = new BookPlugin(book2, 'test-config');
+                    return plugin.load(PLUGINS_ROOT);
+                })
+                .then(function() {
+                    book2.config.get('pluginsConfig.test-config.myDefaultProperty', '').should.equal('hello');
+                });
             });
         });
     });
@@ -87,243 +106,89 @@ describe('Plugins', function () {
         var plugin;
 
         before(function() {
-            plugin = new Plugin(book, 'resources');
-            plugin.load('./resources', PLUGINS_ROOT);
-
-            return book.plugins.load(plugin);
-        });
-
-        it('should valid a plugin', function() {
-            should(plugin.isValid()).be.exactly(true);
+            plugin = new BookPlugin(book, 'test-resources');
+            return plugin.load(PLUGINS_ROOT);
         });
 
-        describe('Website', function() {
-            it('should return a valid list of resources', function() {
-                return plugin.getResources('website')
-                    .then(function(resources) {
-                        resources.js.should.have.lengthOf(1);
-                    });
-            });
 
-            it('should extend books plugins', function() {
-                var resources = book.plugins.resources('website');
-                resources.js.should.have.lengthOf(5);
-            });
-        });
-
-        describe('eBook', function() {
-            it('should return a valid list of resources', function() {
-                return plugin.getResources('ebook')
-                    .then(function(resources) {
-                        resources.css.should.have.lengthOf(1);
-                    });
-            });
+        it('should list all resources for website', function() {
+            return plugin.getResources('website')
+            .then(function(resources) {
+                resources.assets.should.equal('./assets');
 
-            it('should extend books plugins', function() {
-                var resources = book.plugins.resources('ebook');
+                resources.js.should.have.lengthOf(2);
+                resources.js[0].path.should.equal('gitbook-plugin-test-resources/myfile.js');
+                resources.js[1].url.should.equal('https://ajax.googleapis.com/ajax/libs/angularjs/1.4.9/angular.min.js');
 
-                // There is resources from highlight plugin and this plugin
-                resources.css.should.have.lengthOf(2);
-                should.exist(_.find(resources.css, {
-                    path: 'gitbook-plugin-resources/test'
-                }));
+                resources.css.should.have.lengthOf(1);
+                resources.css[0].path.should.equal('gitbook-plugin-test-resources/myfile.css');
             });
         });
     });
 
     describe('Filters', function() {
-        var plugin;
+        var plugin, filters;
 
         before(function() {
-            plugin = new Plugin(book, 'filters');
-            plugin.load('./filters', PLUGINS_ROOT);
+            plugin = new BookPlugin(book, 'test-filters');
+            return plugin.load(PLUGINS_ROOT)
 
-            return book.plugins.load(plugin);
-        });
-
-        it('should valid a plugin', function() {
-            should(plugin.isValid()).be.exactly(true);
+            .then(function() {
+                filters = plugin.getFilters();
+            });
         });
 
-        it('should return a map of filters', function() {
-            var filters = plugin.getFilters();
-
+        it('should list all filters', function() {
             _.size(filters).should.equal(2);
-            filters.should.have.property('hello');
-            filters.should.have.property('helloCtx');
         });
 
-        it('should correctly extend template filters', function() {
-            return book.template.renderString('{{ \'World\'|hello }}')
-                .then(function(content) {
-                    content.should.equal('Hello World');
-                });
+        it('should correctly execute a filter', function() {
+            filters.hello('World').should.equal('Hello World!');
         });
 
-        it('should correctly set book as context', function() {
-            return book.template.renderString('{{ \'root\'|helloCtx }}')
-                .then(function(content) {
-                    content.should.equal('root:'+book.root);
-                });
+        it('should correctly set contexts for filter', function() {
+            filters.testContext('Hello');
         });
     });
 
     describe('Blocks', function() {
-        var plugin;
+        var plugin, blocks;
 
         before(function() {
-            plugin = new Plugin(book, 'blocks');
-            plugin.load('./blocks', PLUGINS_ROOT);
-
-            return book.plugins.load(plugin);
-        });
-
-        var testTpl = function(str, args, options) {
-            return book.template.renderString(str, args, options)
-            .then(book.template.postProcess);
-        };
-
-        it('should valid a plugin', function() {
-            should(plugin.isValid()).be.exactly(true);
-        });
+            plugin = new BookPlugin(book, 'test-blocks');
+            return plugin.load(PLUGINS_ROOT)
 
-        it('should correctly extend template blocks', function() {
-            return testTpl('{% test %}hello{% endtest %}')
-                .then(function(content) {
-                    content.should.equal('testhellotest');
-                });
-        });
-
-        describe('Shortcuts', function() {
-            it('should correctly accept shortcuts', function() {
-                return testTpl('$$hello$$', {}, {
-                    type: 'markdown'
-                })
-                .then(function(content) {
-                    content.should.equal('testhellotest');
-                });
-            });
-
-            it('should correctly apply shortcuts to included file', function() {
-                return books.generate('conrefs', 'website', {
-                    testId: 'include-plugins',
-                    prepare: function(bookConref) {
-                        plugin = new Plugin(bookConref, 'blocks');
-                        plugin.load('./blocks', PLUGINS_ROOT);
-
-                        return bookConref.plugins.load(plugin);
-                    }
-                })
-                .then(function(bookConref) {
-                    var readme = fs.readFileSync(
-                        path.join(bookConref.options.output, 'index.html'),
-                        { encoding: 'utf-8' }
-                    );
-
-                    readme.should.be.html({
-                        '.page-inner p#test-plugin-block-shortcuts-1': {
-                            count: 1,
-                            text: 'testtest_block1test',
-                            trim: true
-                        },
-                        '.page-inner p#test-plugin-block-shortcuts-2': {
-                            count: 1,
-                            text: 'testtest_block2test',
-                            trim: true
-                        }
-                    });
-                });
+            .then(function() {
+                blocks = plugin.getBlocks();
             });
         });
 
-
-        it('should correctly extend template blocks with defined end', function() {
-            return testTpl('{% test2 %}hello{% endtest2end %}')
-                .then(function(content) {
-                    content.should.equal('test2hellotest2');
-                });
+        it('should list all blocks', function() {
+            _.size(blocks).should.equal(2);
         });
 
-        it('should correctly extend template blocks with sub-blocks', function() {
-            return testTpl('{% test3join separator=";" %}hello{% also %}world{% endtest3join %}')
-                .then(function(content) {
-                    content.should.equal('hello;world');
-                });
+        it('should correctly normalize block', function() {
+            blocks.hello.process({ body: 'World' }).should.equal('Hello World!');
         });
 
-        it('should correctly extend template blocks with different sub-blocks', function() {
-            return testTpl('{% test4join separator=";" %}hello{% also %}the{% finally %}world{% endtest4join %}')
-                .then(function(content) {
-                    content.should.equal('hello;the;world');
-                });
-        });
-
-        it('should correctly extend template blocks with arguments (1)', function() {
-            return testTpl('{% test5args "a" %}{% endtest5args %}')
-                .then(function(content) {
-                    content.should.equal('test5atest5');
-                });
-        });
-
-        it('should correctly extend template blocks with arguments (2)', function() {
-            return testTpl('{% test5args "a", "b" %}{% endtest5args %}')
-                .then(function(content) {
-                    content.should.equal('test5a,btest5');
-                });
-        });
-
-        it('should correctly extend template blocks with arguments (3)', function() {
-            return testTpl('{% test5args "a", "b", "c" %}{% endtest5args %}')
-                .then(function(content) {
-                    content.should.equal('test5a,b,ctest5');
-                });
-        });
-
-        it('should correctly extend template blocks with args and kwargs', function() {
-            return testTpl('{% test5kwargs "a", "b", "c", d="test", e="test2" %}{% endtest5kwargs %}')
-                .then(function(content) {
-                    content.should.equal('test5a,b,c,d:test,e:test2,__keywords:truetest5');
-                });
-        });
-
-        it('should correctly extend template blocks with access to context', function() {
-            return testTpl('{% set name = "john" %}{% test6context %}{% endtest6context %}', {})
-            .then(function(content) {
-                content.should.equal('test6johntest6');
-            });
+        it('should correctly set contexts for filter', function() {
+            blocks.testContext.process({ body: 'Hello' });
         });
     });
 
-    describe('Blocks without parsing', function() {
+    describe('Hooks', function() {
         var plugin;
 
         before(function() {
-            plugin = new Plugin(book, 'blocks');
-            plugin.load('./blocks', PLUGINS_ROOT);
-
-            return book.plugins.load(plugin);
+            plugin = new BookPlugin(book, 'test-hooks');
+            return plugin.load(PLUGINS_ROOT);
         });
 
-        var testTpl = function(markup, str, args, options) {
-            var filetype = parsers.get(markup);
-
-            return book.template.renderString(str, args, options)
-            .then(filetype.page).get('sections').get(0).get('content')
-            .then(book.template.postProcess);
-        };
-
-        it('should correctly process unparsable for markdown', function() {
-            return testTpl('.md', '{% test %}**hello**{% endtest %}')
-                .then(function(content) {
-                    content.should.equal('<p>test**hello**test</p>\n');
-                });
-        });
-
-        it('should correctly process unparsable for asciidoc', function() {
-            return testTpl('.adoc', '{% test %}**hello**{% endtest %}')
-                .then(function(content) {
-                    content.should.equal('<div class="paragraph">\n<p>test**hello**test</p>\n</div>');
-                });
+        it('can call a hook', function() {
+            return plugin.hook('init')
+            .then(function() {
+                global._hooks.should.deepEqual(['init']);
+            });
         });
     });
 });
diff --git a/test/plugins/blocks/index.js b/test/plugins/blocks/index.js
deleted file mode 100644
index 9bdbe86..0000000
--- a/test/plugins/blocks/index.js
+++ /dev/null
@@ -1,61 +0,0 @@
-var assert = require("assert");
-
-module.exports = {
-    blocks: {
-        "test": {
-            shortcuts: {
-                parsers:  ["markdown"],
-                start: "$$",
-                end: "$$"
-            },
-            process: function(blk) {
-                return "test"+blk.body+"test";
-            }
-        },
-        "test2": {
-            end: "endtest2end",
-            process: function(blk) {
-                return "test2"+blk.body+"test2";
-            }
-        },
-        "test3join": {
-            blocks: [
-                "also"
-            ],
-            process: function(blk) {
-                return [blk.body, blk.blocks[0].body].join(blk.kwargs.separator);
-            }
-        },
-        "test4join": {
-            blocks: [
-                "also", "finally"
-            ],
-            process: function(blk) {
-                assert(blk.blocks.length, 2);
-                assert(blk.blocks[0].name, "also");
-                assert(blk.blocks[1].name, "finally");
-                return [blk.body, blk.blocks[0].body, blk.blocks[1].body].join(blk.kwargs.separator);
-            }
-        },
-        "test5args": {
-            process: function(blk) {
-                return "test5"+blk.args.join(",")+"test5";
-            }
-        },
-        "test5kwargs": {
-            process: function(blk) {
-                var s = blk.args.join(",");
-                for (var key in blk.kwargs) {
-                    s = s + ","+key+":"+blk.kwargs[key];
-                }
-
-                return "test5"+s+"test5";
-            }
-        },
-        "test6context": {
-            process: function() {
-                return "test6"+(this.ctx.name)+"test6";
-            }
-        },
-    }
-};
\ No newline at end of file
diff --git a/test/plugins/blocks/package.json b/test/plugins/blocks/package.json
deleted file mode 100644
index 7c41fd3..0000000
--- a/test/plugins/blocks/package.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-    "name": "gitbook-plugin-blocks",
-    "description": "Test blocks",
-    "main": "index.js",
-    "version": "0.0.1",
-    "engines": {
-        "gitbook": "*"
-    }
-}
\ No newline at end of file
diff --git a/test/plugins/config/package.json b/test/plugins/config/package.json
deleted file mode 100644
index 03ef744..0000000
--- a/test/plugins/config/package.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "name": "gitbook-plugin-testconfig",
-    "description": "Test plugin configuration",
-    "main": "index.js",
-    "version": "0.0.1",
-    "engines": {
-        "gitbook": "*"
-    },
-    "gitbook": {
-        "properties": {
-            "hello": {
-                "type": "string",
-                "default": "world"
-            },
-            "testRequired": {
-                "type": "number",
-                "required": true
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/test/plugins/empty/index.js b/test/plugins/empty/index.js
deleted file mode 100644
index a099545..0000000
--- a/test/plugins/empty/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = {};
\ No newline at end of file
diff --git a/test/plugins/empty/package.json b/test/plugins/empty/package.json
deleted file mode 100644
index 78c7e72..0000000
--- a/test/plugins/empty/package.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-    "name": "gitbook-plugin-empty",
-    "description": "Test empty plugin",
-    "main": "index.js",
-    "version": "0.0.1",
-    "engines": {
-        "gitbook": "*"
-    }
-}
\ No newline at end of file
diff --git a/test/plugins/filters/index.js b/test/plugins/filters/index.js
deleted file mode 100644
index 2cf53b1..0000000
--- a/test/plugins/filters/index.js
+++ /dev/null
@@ -1,10 +0,0 @@
-module.exports = {
-    filters: {
-        hello: function(text) {
-            return "Hello "+text;
-        },
-        helloCtx: function(text) {
-            return text+":"+this.book.root;
-        }
-    }
-};
\ No newline at end of file
diff --git a/test/plugins/filters/package.json b/test/plugins/filters/package.json
deleted file mode 100644
index f1d4e45..0000000
--- a/test/plugins/filters/package.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-    "name": "gitbook-plugin-filters",
-    "description": "Test filters",
-    "main": "index.js",
-    "version": "0.0.1",
-    "engines": {
-        "gitbook": "*"
-    }
-}
\ No newline at end of file
diff --git a/test/plugins/invalid/index.js b/test/plugins/invalid/index.js
deleted file mode 100644
index a099545..0000000
--- a/test/plugins/invalid/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = {};
\ No newline at end of file
diff --git a/test/plugins/invalid/package.json b/test/plugins/invalid/package.json
deleted file mode 100644
index da34090..0000000
--- a/test/plugins/invalid/package.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-    "name": "gitbook-plugin-invalid",
-    "description": "Test invalid plugin",
-    "main": "index.js",
-    "version": "0.0.1",
-    "engines": {
-        "gitbook": "<2.0.0"
-    }
-}
\ No newline at end of file
diff --git a/test/plugins/replace_highlight/index.js b/test/plugins/replace_highlight/index.js
deleted file mode 100644
index 8586486..0000000
--- a/test/plugins/replace_highlight/index.js
+++ /dev/null
@@ -1,14 +0,0 @@
-module.exports = {
-    blocks: {
-        "code": {
-            process: function(blk) {
-                var lang = blk.kwargs.language || "code";
-
-                return {
-                    body: lang+"_"+blk.body+"_"+lang,
-                    html: false
-                };
-            }
-        }
-    }
-};
\ No newline at end of file
diff --git a/test/plugins/replace_highlight/package.json b/test/plugins/replace_highlight/package.json
deleted file mode 100644
index 72d1033..0000000
--- a/test/plugins/replace_highlight/package.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-    "name": "gitbook-plugin-replace_highlight",
-    "description": "Test replacing default code highlighter",
-    "main": "index.js",
-    "version": "0.0.1",
-    "engines": {
-        "gitbook": "*"
-    }
-}
\ No newline at end of file
diff --git a/test/plugins/resources/index.js b/test/plugins/resources/index.js
deleted file mode 100644
index bafa54b..0000000
--- a/test/plugins/resources/index.js
+++ /dev/null
@@ -1,12 +0,0 @@
-module.exports = {
-    website: {
-        js: [
-            "https://cdn.mathjax.org/mathjax/2.4-latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"
-        ]
-    },
-    ebook: {
-        css: [
-            "test"
-        ]
-    }
-};
diff --git a/test/plugins/resources/package.json b/test/plugins/resources/package.json
deleted file mode 100644
index ab4320d..0000000
--- a/test/plugins/resources/package.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-    "name": "gitbook-plugin-resources",
-    "description": "Test resources plugin",
-    "main": "index.js",
-    "version": "0.0.1",
-    "engines": {
-        "gitbook": "*"
-    }
-}
\ No newline at end of file
diff --git a/test/readme.js b/test/readme.js
new file mode 100644
index 0000000..0cf66ff
--- /dev/null
+++ b/test/readme.js
@@ -0,0 +1,43 @@
+var mock = require('./mock');
+
+describe('Readme', function() {
+    it('should parse empty readme', function() {
+        return mock.setupDefaultBook({
+            'README.md': ''
+        })
+        .then(function(book) {
+            return book.config.load()
+
+            .then(function() {
+                return book.readme.load();
+            });
+        });
+    });
+
+    it('should parse readme', function() {
+        return mock.setupDefaultBook({
+            'README.md': '# Hello World\nThis is my book'
+        })
+        .then(function(book) {
+            return book.readme.load()
+            .then(function() {
+                book.readme.title.should.equal('Hello World');
+                book.readme.description.should.equal('This is my book');
+            });
+        });
+    });
+
+    it('should parse AsciiDoc readme', function() {
+        return mock.setupBook({
+            'README.adoc': '# Hello World\n\nThis is my book\n'
+        })
+        .then(function(book) {
+            return book.readme.load()
+            .then(function() {
+                book.readme.title.should.equal('Hello World');
+                book.readme.description.should.equal('This is my book');
+            });
+        });
+    });
+});
+
diff --git a/test/resolve.js b/test/resolve.js
deleted file mode 100644
index e474ed0..0000000
--- a/test/resolve.js
+++ /dev/null
@@ -1,60 +0,0 @@
-var path = require("path");
-
-describe("Resolve Files", function () {
-    var book;
-
-    before(function() {
-        return books.parse("basic")
-            .then(function(_book) {
-                book = _book;
-            });
-    });
-
-    describe("book.fileIsInBook", function() {
-        it("should return true for correct paths", function() {
-            book.fileIsInBook(path.join(book.root, "README.md")).should.equal(true);
-            book.fileIsInBook(path.join(book.root, "styles/website.css")).should.equal(true);
-        });
-
-        it("should return true for root folder", function() {
-            book.fileIsInBook(path.join(book.root, "./")).should.equal(true);
-            book.fileIsInBook(book.root).should.equal(true);
-        });
-
-        it("should return false for files out of scope", function() {
-            book.fileIsInBook(path.join(book.root, "../")).should.equal(false);
-            book.fileIsInBook("README.md").should.equal(false);
-            book.fileIsInBook(path.resolve(book.root, "../README.md")).should.equal(false);
-        });
-
-        it("should correctly handle windows paths", function() {
-            book.fileIsInBook(path.join(book.root, "\\styles\\website.css")).should.equal(true);
-        });
-    });
-
-    describe("book.resolve", function() {
-        it("should resolve a file to its absolute path", function() {
-            book.resolve("README.md").should.equal(path.resolve(book.root, "README.md"));
-            book.resolve("website/README.md").should.equal(path.resolve(book.root, "website/README.md"));
-        });
-
-        it("should correctly handle windows paths", function() {
-            book.resolve("styles\\website.css").should.equal(path.resolve(book.root, "styles\\website.css"));
-        });
-
-        it("should correctly resolve all arguments", function() {
-            book.resolve("test", "hello", "..", "README.md").should.equal(path.resolve(book.root, "test/README.md"));
-        });
-
-        it("should correctly resolve to root folder", function() {
-            book.resolve("test", "/README.md").should.equal(path.resolve(book.root, "README.md"));
-            book.resolve("test", "\\README.md").should.equal(path.resolve(book.root, "README.md"));
-        });
-
-        it("should throw an error for file out of book", function() {
-            (function() {
-                return book.resolve("../README.md");
-            }).should.throw();
-        });
-    });
-});
diff --git a/test/structure.js b/test/structure.js
deleted file mode 100644
index 90413cb..0000000
--- a/test/structure.js
+++ /dev/null
@@ -1,20 +0,0 @@
-describe('Structure', function () {
-    var book;
-
-    before(function() {
-        return books.parse('structure')
-            .then(function(_book) {
-                book = _book;
-            });
-    });
-
-
-    it('should prioritize structure defined in book.json', function() {
-        book.readmeFile.should.equal('README.adoc');
-    });
-
-    it('should be case incensitive', function() {
-        book.glossaryFile.should.equal('glossary.md');
-        book.glossary.should.have.lengthOf(1);
-    });
-});
diff --git a/test/summary.js b/test/summary.js
index 2d3a248..08b9db8 100644
--- a/test/summary.js
+++ b/test/summary.js
@@ -1,70 +1,300 @@
-var fs = require("fs");
-var path = require("path");
+var should = require('should');
 
-describe("Summary", function () {
-    describe("Parsing", function() {
+var mock = require('./mock');
+
+function mockSummary(files, summary) {
+    return mock.setupDefaultBook(files, summary)
+    .then(function(book) {
+        return book.readme.load()
+        .then(function() {
+            return book.summary.load();
+        })
+        .thenResolve(book);
+    });
+}
+
+describe('Summary / Table of contents', function() {
+    describe('Empty summary list', function() {
         var book;
 
         before(function() {
-            return books.parse("summary")
-                .then(function(_book) {
-                    book = _book;
-                });
+            return mockSummary({})
+            .then(function(_book) {
+                book = _book;
+            });
         });
 
-        it("should correctly list items", function() {
-            book.should.have.property("summary");
-            book.summary.should.have.property("chapters");
-            book.summary.chapters.should.have.lengthOf(4);
+        it('should add README as first entry', function() {
+            should(book.summary.getArticle('README.md')).be.ok();
         });
 
-        it("should correctly mark non-existant entries", function() {
-            book.summary.chapters[0].exists.should.have.equal(true);
-            book.summary.chapters[1].exists.should.have.equal(true);
-            book.summary.chapters[2].exists.should.have.equal(true);
-            book.summary.chapters[3].exists.should.have.equal(false);
+        it('should correctly count articles', function() {
+            book.summary.count().should.equal(1);
         });
     });
 
-    describe("Generation", function() {
+    describe('Non-existant summary', function() {
         var book;
 
         before(function() {
-            return books.generate("summary", "website")
-                .then(function(_book) {
-                    book = _book;
+            return mock.setupBook({
+                'README.md': 'Hello'
+            })
+            .then(function(_book) {
+                book = _book;
+
+                return book.readme.load()
+                .then(function() {
+                    return book.summary.load();
                 });
+            });
+        });
+
+        it('should add README as first entry', function() {
+            should(book.summary.getArticle('README.md')).be.ok();
+        });
+
+        it('should correctly count articles', function() {
+            book.summary.count().should.equal(1);
+        });
+    });
+
+    describe('Non-empty summary list', function() {
+        var book;
+
+        before(function() {
+            return mockSummary({
+                'SUMMARY.md': '# Summary\n\n'
+                    + '* [Hello](./hello.md)\n'
+                    + '* [World](./world.md)\n\n'
+            })
+            .then(function(_book) {
+                book = _book;
+            });
+        });
+
+        it('should correctly count articles', function() {
+            book.summary.count().should.equal(3);
+        });
+    });
+
+    describe('Levels', function() {
+        var book;
+
+        before(function() {
+            return mockSummary({
+                'SUMMARY.md': '# Summary\n\n'
+                    + '* [Hello](./hello.md)\n'
+                    + '    * [Hello 2](./hello2.md)\n'
+                    + '* [World](./world.md)\n\n'
+                    + '## Part 2\n\n'
+                    + '* [Hello 3](./hello.md)\n'
+                    + '    * [Hello 4](./hello2.md)\n'
+            })
+            .then(function(_book) {
+                book = _book;
+            });
         });
 
-        it("should create files according to summary", function() {
-            book.should.have.file("index.html");
-            book.should.have.file("PAGE1.html");
-            book.should.have.file("folder/PAGE2.html");
-        });
-
-        it("should correctly output summary", function() {
-            var PAGE = fs.readFileSync(
-                path.join(book.options.output, "index.html"),
-                { encoding: "utf-8" }
-            );
-
-            PAGE.should.be.html({
-                ".book-summary .chapter[data-level=\"0\"] a": {
-                    attributes: {
-                        href: "./index.html"
-                    }
-                },
-                ".book-summary .chapter[data-level=\"1\"] a": {
-                    attributes: {
-                        href: "./PAGE1.html"
-                    }
-                },
-                ".book-summary .chapter[data-level=\"2\"] a": {
-                    attributes: {
-                        href: "./folder/PAGE2.html"
-                    }
+        it('should correctly index levels', function() {
+            book.summary.getArticleByLevel('0').title.should.equal('Introduction');
+            book.summary.getArticleByLevel('1.1').title.should.equal('Hello');
+            book.summary.getArticleByLevel('1.1.1').title.should.equal('Hello 2');
+            book.summary.getArticleByLevel('1.2').title.should.equal('World');
+
+            book.summary.getArticleByLevel('2.1').title.should.equal('Hello 3');
+            book.summary.getArticleByLevel('2.1.1').title.should.equal('Hello 4');
+        });
+
+        it('should correctly calcul depth', function() {
+            book.summary.getArticleByLevel('0').depth().should.equal(1);
+            book.summary.getArticleByLevel('1.1').depth().should.equal(2);
+            book.summary.getArticleByLevel('1.1.1').depth().should.equal(3);
+        });
+    });
+
+    describe('External', function() {
+        var book;
+
+        before(function() {
+            return mockSummary({}, [
+                {
+                    title: 'Google',
+                    path: 'https://www.google.fr'
                 }
+            ])
+            .then(function(_book) {
+                book = _book;
             });
         });
+
+        it('should correctly count articles', function() {
+            book.summary.count().should.equal(2);
+        });
+
+        it('should correctly signal it as external', function() {
+            var article = book.summary.getArticleByLevel('1');
+
+            should(article).be.ok();
+            should(article.path).not.be.ok();
+
+            article.title.should.equal('Google');
+            article.ref.should.equal('https://www.google.fr');
+            article.isExternal().should.be.ok;
+        });
+    });
+
+    describe('Next / Previous', function() {
+        var book;
+
+        before(function() {
+            return mockSummary({
+                'SUMMARY.md': '# Summary\n\n' +
+                    '* [Hello](hello.md)\n' +
+                    '* [Hello 2](hello2.md)\n' +
+                    '    * [Hello 3](hello3.md)\n' +
+                    '    * [Hello 4](hello4.md)\n' +
+                    '    * [Hello 5](hello5.md)\n' +
+                    '* [Hello 6](hello6.md)\n\n\n' +
+                    '### Part 2\n\n' +
+                    '* [Hello 7](hello7.md)\n' +
+                    '    * [Hello 8](hello8.md)\n\n' +
+                    '### Part 3\n\n' +
+                    '* [Hello 9](hello9.md)\n' +
+                    '* [Hello 10](hello10.md)\n\n'
+            })
+            .then(function(_book) {
+                book = _book;
+            });
+        });
+
+        it('should only return a next for the readme', function() {
+            var article = book.summary.getArticle('README.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).not.be.ok();
+            should(next).be.ok();
+
+            next.path.should.equal('hello.md');
+        });
+
+        it('should return next/prev for a first level page', function() {
+            var article = book.summary.getArticle('hello.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.ok();
+
+            prev.path.should.equal('README.md');
+            next.path.should.equal('hello2.md');
+        });
+
+        it('should return next/prev for a joint -> child', function() {
+            var article = book.summary.getArticle('hello2.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.ok();
+
+            prev.path.should.equal('hello.md');
+            next.path.should.equal('hello3.md');
+        });
+
+        it('should return next/prev for a joint <- child', function() {
+            var article = book.summary.getArticle('hello3.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.ok();
+
+            prev.path.should.equal('hello2.md');
+            next.path.should.equal('hello4.md');
+        });
+
+        it('should return next/prev for a children', function() {
+            var article = book.summary.getArticle('hello4.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.ok();
+
+            prev.path.should.equal('hello3.md');
+            next.path.should.equal('hello5.md');
+        });
+
+        it('should return next/prev for a joint -> parent', function() {
+            var article = book.summary.getArticle('hello5.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.ok();
+
+            prev.path.should.equal('hello4.md');
+            next.path.should.equal('hello6.md');
+        });
+
+        it('should return next/prev for a joint -> parts', function() {
+            var article = book.summary.getArticle('hello6.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.ok();
+
+            prev.path.should.equal('hello5.md');
+            next.path.should.equal('hello7.md');
+        });
+
+        it('should return next/prev for a joint <- parts', function() {
+            var article = book.summary.getArticle('hello7.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.ok();
+
+            prev.path.should.equal('hello6.md');
+            next.path.should.equal('hello8.md');
+        });
+
+        it('should return next and prev', function() {
+            var article = book.summary.getArticle('hello8.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.ok();
+
+            prev.path.should.equal('hello7.md');
+            next.path.should.equal('hello9.md');
+        });
+
+        it('should return only prev for last', function() {
+            var article = book.summary.getArticle('hello10.md');
+
+            var prev = article.prev();
+            var next = article.next();
+
+            should(prev).be.ok();
+            should(next).be.not.ok();
+
+            prev.path.should.equal('hello9.md');
+        });
     });
 });
+
diff --git a/test/template.js b/test/template.js
new file mode 100644
index 0000000..6eb2278
--- /dev/null
+++ b/test/template.js
@@ -0,0 +1,54 @@
+var mock = require('./mock');
+var Output = require('../lib/output/base');
+
+describe('Template', function() {
+    var output;
+
+    before(function() {
+        return mock.outputDefaultBook(Output, {})
+        .then(function(_output) {
+            output = _output;
+        });
+    });
+
+    describe('.renderString', function() {
+        it('should render a simple string', function() {
+            return output.template.renderString('Hello World')
+                .should.be.fulfilledWith('Hello World');
+        });
+
+        it('should render with variable', function() {
+            return output.template.renderString('Hello {{ world }}', { world: 'World'})
+                .should.be.fulfilledWith('Hello World');
+        });
+    });
+
+    describe('Blocks', function() {
+        it('should correctly add a block', function() {
+            output.template.addBlock('sayhello', function(blk) {
+                return 'Hello ' + blk.body + '!';
+            });
+
+            return output.template.renderString('{% sayhello %}World{% endsayhello %}')
+                .should.be.fulfilledWith('Hello World!');
+        });
+
+        it('should correctly add a block with args', function() {
+            output.template.addBlock('sayhello_args', function(blk) {
+                return 'Hello ' + blk.args[0] + '!';
+            });
+
+            return output.template.renderString('{% sayhello_args "World" %}{% endsayhello_args %}')
+                .should.be.fulfilledWith('Hello World!');
+        });
+
+        it('should correctly add a block with kwargs', function() {
+            output.template.addBlock('sayhello_kwargs', function(blk) {
+                return 'Hello ' + blk.kwargs.name + '!';
+            });
+
+            return output.template.renderString('{% sayhello_kwargs name="World" %}{% endsayhello_kwargs %}')
+                .should.be.fulfilledWith('Hello World!');
+        });
+    });
+});
diff --git a/test/templating.js b/test/templating.js
deleted file mode 100644
index f92154b..0000000
--- a/test/templating.js
+++ /dev/null
@@ -1,33 +0,0 @@
-var pkg = require("../package.json");
-
-describe("Templating", function () {
-    var book;
-
-    before(function() {
-        return books.parse("basic")
-            .then(function(_book) {
-                book = _book;
-            });
-    });
-
-    var testTpl = function(str, args, options) {
-        return book.template.renderString(str, args, options)
-        .then(book.template.postProcess);
-    };
-
-    describe("Context", function() {
-        it("should correctly have access to generator", function() {
-            return testTpl("{{ gitbook.generator }}")
-                .then(function(content) {
-                    content.should.equal("website");
-                });
-        });
-
-        it("should correctly have access to gitbook version", function() {
-            return testTpl("{{ gitbook.version }}")
-                .then(function(content) {
-                    content.should.equal(pkg.version.toString());
-                });
-        });
-    });
-});
diff --git a/test/website.js b/test/website.js
deleted file mode 100644
index 6a0fd1c..0000000
--- a/test/website.js
+++ /dev/null
@@ -1,26 +0,0 @@
-describe('Website generator', function () {
-    describe('Basic Book', function() {
-        var book;
-
-        before(function() {
-            return books.generate('basic', 'website')
-                .then(function(_book) {
-                    book = _book;
-                });
-        });
-
-        it('should correctly output an index.html', function() {
-            book.should.have.file('index.html');
-        });
-
-        it('should correctly copy assets', function() {
-            book.should.have.file('gitbook');
-            book.should.have.file('gitbook/app.js');
-            book.should.have.file('gitbook/style.css');
-        });
-
-        it('should not copy ebook assets', function() {
-            book.should.not.have.file('gitbook/ebook.css');
-        });
-    });
-});
diff --git a/theme/assets/ebook/ebook.css b/theme/assets/ebook/ebook.css
deleted file mode 100644
index b8d5754..0000000
--- a/theme/assets/ebook/ebook.css
+++ /dev/null
@@ -1 +0,0 @@
-.section.glossary>h1,.section.toc>h1{text-align:center}.page .section b,.page .section dl dt,.page .section strong,.page .section table th{font-weight:700}.link-inherit,.link-inherit:focus,.link-inherit:hover{color:inherit}.hidden{display:none}.section.toc>ol{margin:0;padding:0}.section.toc li{list-style:none}.section.toc li .inner{display:block;border-bottom:1px dotted #eee;margin-bottom:4px}.section.toc li .inner a,.section.toc li .inner span{padding-right:5px;border-bottom:1px solid #fff;margin-bottom:-1px}.section.toc li .inner .page{float:right;padding-left:5px}.section.toc li ol{margin:0;padding:0 0 0 2em}.dir-rtl .section.toc li .inner .page{float:left}.dir-rtl .section.toc li ol{margin:0;padding:0 2em 0 0}.section.glossary .glossary-entry{margin-bottom:40px}.section.glossary .glossary-entry h2 a,.section.glossary .glossary-entry h2 a:hover{color:inherit;text-decoration:none}.page .section,body{color:#000;text-size-adjust:100%;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}.section.glossary .glossary-entry .glossary-index{list-style:none;margin:0;padding:0}.section.glossary .glossary-entry .glossary-index li{display:inline;margin:0 8px;white-space:nowrap}body{font-family:sans-serif}.page .section{display:block;word-wrap:break-word;overflow:hidden;line-height:1.6;-moz-text-size-adjust:100%}.page .section *{box-sizing:border-box;-webkit-box-sizing:border-box;font-size:inherit}.page .section>:first-child{margin-top:0!important}.page .section>:last-child{margin-bottom:0!important}.page .section blockquote,.page .section code,.page .section figure,.page .section img,.page .section pre,.page .section table,.page .section tr{page-break-inside:avoid}.page .section h2,.page .section h3,.page .section h4,.page .section h5,.page .section p{orphans:3;widows:3}.page .section h1,.page .section h2,.page .section h3,.page .section h4,.page .section h5{page-break-after:avoid}.page .section em{font-style:italic}.page .section blockquote,.page .section dl,.page .section ol,.page .section p,.page .section table,.page .section ul{margin-top:0;margin-bottom:.8em}.page .section a{color:#4183c4;text-decoration:none;background:0 0}.page .section a:active,.page .section a:focus,.page .section a:hover{outline:0;text-decoration:underline}.page .section img{border:0;max-width:100%}.page .section hr{height:4px;padding:0;margin:1.6em 0;overflow:hidden;background-color:#e7e7e7;border:none}.page .section hr:after,.page .section hr:before{display:table;content:" "}.page .section hr:after{clear:both}.page .section h1,.page .section h2,.page .section h3,.page .section h4,.page .section h5,.page .section h6{margin-top:1.2em;margin-bottom:.8em;font-weight:700}.page .section h1{font-size:2em}.page .section h2{font-size:1.75em}.page .section h3{font-size:1.5em}.page .section h4{font-size:1.25em}.page .section h5{font-size:1em}.page .section h6{font-size:1em;color:#777}.page .section code,.page .section pre{font-family:Consolas,"Liberation Mono",Menlo,Courier,monospace;direction:ltr;border:none;color:inherit}.page .section pre{overflow:auto;word-wrap:normal;margin:0 0 1.2em;padding:.85em 1em;background:#f7f7f7}.page .section pre>code{display:inline;max-width:initial;padding:0;margin:0;overflow:initial;line-height:inherit;font-size:.85em;white-space:pre;background:0 0}.page .section pre>code:after,.page .section pre>code:before{content:normal}.page .section code{padding:.2em;margin:0;font-size:.85em;background-color:#f7f7f7}.page .section code:after,.page .section code:before{letter-spacing:-.2em;content:"\00a0"}.page .section table{display:table;width:100%;border-collapse:collapse;border-spacing:0;overflow:auto}.page .section table td,.page .section table th{padding:6px 13px;border:1px solid #ddd}.page .section table tr{background-color:#fff;border-top:1px solid #ccc}.page .section table tr:nth-child(2n){background-color:#f8f8f8}.page .section ol,.page .section ul{padding:0 0 0 2em;margin:0 0 .8em}.page .section ol ol,.page .section ol ul,.page .section ul ol,.page .section ul ul{margin-top:0;margin-bottom:0}.page .section ol ol{list-style-type:lower-roman}.page .section blockquote{margin:0 0 .8em;padding:0 15px;color:#858585;border-left:4px solid #e5e5e5}.page .section blockquote:first-child{margin-top:0}.page .section blockquote:last-child{margin-bottom:0}.page .section dl{padding:0}.page .section dl dt{padding:0;margin-top:.8em;font-style:italic}.page .section dl dd{padding:0 .8em;margin-bottom:.8em}.page .section dd{margin-left:0}.page .book-chapter{display:none}
\ No newline at end of file
diff --git a/theme/assets/ebook/epub.css b/theme/assets/ebook/epub.css
deleted file mode 100644
index 9049832..0000000
--- a/theme/assets/ebook/epub.css
+++ /dev/null
@@ -1 +0,0 @@
-.section.glossary>h1,.section.toc>h1{text-align:center}.page .section b,.page .section dl dt,.page .section strong,.page .section table th{font-weight:700}.link-inherit,.link-inherit:focus,.link-inherit:hover{color:inherit}.hidden{display:none}.section.toc>ol{margin:0;padding:0}.section.toc li{list-style:none}.section.toc li .inner{display:block;border-bottom:1px dotted #eee;margin-bottom:4px}.section.toc li .inner a,.section.toc li .inner span{padding-right:5px;border-bottom:1px solid #fff;margin-bottom:-1px}.section.toc li .inner .page{float:right;padding-left:5px}.section.toc li ol{margin:0;padding:0 0 0 2em}.dir-rtl .section.toc li .inner .page{float:left}.dir-rtl .section.toc li ol{margin:0;padding:0 2em 0 0}.section.glossary .glossary-entry{margin-bottom:40px}.section.glossary .glossary-entry h2 a,.section.glossary .glossary-entry h2 a:hover{color:inherit;text-decoration:none}.page .section,body{color:#000;text-size-adjust:100%;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}.section.glossary .glossary-entry .glossary-index{list-style:none;margin:0;padding:0}.section.glossary .glossary-entry .glossary-index li{display:inline;margin:0 8px;white-space:nowrap}body{font-family:serif}.page .section{display:block;word-wrap:break-word;overflow:hidden;line-height:1.6;-moz-text-size-adjust:100%}.page .section *{box-sizing:border-box;-webkit-box-sizing:border-box;font-size:inherit}.page .section>:first-child{margin-top:0!important}.page .section>:last-child{margin-bottom:0!important}.page .section blockquote,.page .section code,.page .section figure,.page .section img,.page .section pre,.page .section table,.page .section tr{page-break-inside:avoid}.page .section h2,.page .section h3,.page .section h4,.page .section h5,.page .section p{orphans:3;widows:3}.page .section h1,.page .section h2,.page .section h3,.page .section h4,.page .section h5{page-break-after:avoid}.page .section em{font-style:italic}.page .section blockquote,.page .section dl,.page .section ol,.page .section p,.page .section table,.page .section ul{margin-top:0;margin-bottom:.8em}.page .section a{color:#4183c4;text-decoration:none;background:0 0}.page .section a:active,.page .section a:focus,.page .section a:hover{outline:0;text-decoration:underline}.page .section img{border:0;max-width:100%}.page .section hr{height:4px;padding:0;margin:1.6em 0;overflow:hidden;background-color:#e7e7e7;border:none}.page .section hr:after,.page .section hr:before{display:table;content:" "}.page .section hr:after{clear:both}.page .section h1,.page .section h2,.page .section h3,.page .section h4,.page .section h5,.page .section h6{margin-top:1.2em;margin-bottom:.8em;font-weight:700}.page .section h1{font-size:2em}.page .section h2{font-size:1.75em}.page .section h3{font-size:1.5em}.page .section h4{font-size:1.25em}.page .section h5{font-size:1em}.page .section h6{font-size:1em;color:#777}.page .section code,.page .section pre{font-family:Consolas,"Liberation Mono",Menlo,Courier,monospace;direction:ltr;border:none;color:inherit}.page .section pre{overflow:auto;word-wrap:normal;margin:0 0 1.2em;padding:.85em 1em;background:#f7f7f7}.page .section pre>code{display:inline;max-width:initial;padding:0;margin:0;overflow:initial;line-height:inherit;font-size:.85em;white-space:pre;background:0 0}.page .section pre>code:after,.page .section pre>code:before{content:normal}.page .section code{padding:.2em;margin:0;font-size:.85em;background-color:#f7f7f7}.page .section code:after,.page .section code:before{letter-spacing:-.2em;content:"\00a0"}.page .section table{display:table;width:100%;border-collapse:collapse;border-spacing:0;overflow:auto}.page .section table td,.page .section table th{padding:6px 13px;border:1px solid #ddd}.page .section table tr{background-color:#fff;border-top:1px solid #ccc}.page .section table tr:nth-child(2n){background-color:#f8f8f8}.page .section ol,.page .section ul{padding:0 0 0 2em;margin:0 0 .8em}.page .section ol ol,.page .section ol ul,.page .section ul ol,.page .section ul ul{margin-top:0;margin-bottom:0}.page .section ol ol{list-style-type:lower-roman}.page .section blockquote{margin:0 0 .8em;padding:0 15px;color:#858585;border-left:4px solid #e5e5e5}.page .section blockquote:first-child{margin-top:0}.page .section blockquote:last-child{margin-bottom:0}.page .section dl{padding:0}.page .section dl dt{padding:0;margin-top:.8em;font-style:italic}.page .section dl dd{padding:0 .8em;margin-bottom:.8em}.page .section dd{margin-left:0}.page .book-chapter{display:none}
\ No newline at end of file
diff --git a/theme/assets/ebook/mobi.css b/theme/assets/ebook/mobi.css
deleted file mode 100644
index f3c903c..0000000
--- a/theme/assets/ebook/mobi.css
+++ /dev/null
@@ -1 +0,0 @@
-.section.glossary>h1,.section.toc>h1{text-align:center}.page .section,body{text-size-adjust:100%;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}.page .section b,.page .section dl dt,.page .section strong,.page .section table th{font-weight:700}.link-inherit,.link-inherit:focus,.link-inherit:hover{color:inherit}.hidden{display:none}.section.toc>ol{margin:0;padding:0}.section.toc li{list-style:none}.section.toc li .inner{display:block;border-bottom:1px dotted #eee;margin-bottom:4px}.section.toc li .inner a,.section.toc li .inner span{padding-right:5px;border-bottom:1px solid #fff;margin-bottom:-1px}.section.toc li .inner .page{float:right;padding-left:5px}.section.toc li ol{margin:0;padding:0 0 0 2em}.dir-rtl .section.toc li .inner .page{float:left}.dir-rtl .section.toc li ol{margin:0;padding:0 2em 0 0}.section.glossary .glossary-entry{margin-bottom:40px}.section.glossary .glossary-entry h2 a,.section.glossary .glossary-entry h2 a:hover{color:inherit;text-decoration:none}.section.glossary .glossary-entry .glossary-index{list-style:none;margin:0;padding:0}.section.glossary .glossary-entry .glossary-index li{display:inline;margin:0 8px;white-space:nowrap}body{font-family:serif;color:#000}.page .section{display:block;word-wrap:break-word;overflow:hidden;color:#000;line-height:1.6;-moz-text-size-adjust:100%}.page .section *{box-sizing:border-box;-webkit-box-sizing:border-box;font-size:inherit}.page .section>:first-child{margin-top:0!important}.page .section>:last-child{margin-bottom:0!important}.page .section blockquote,.page .section code,.page .section figure,.page .section img,.page .section pre,.page .section table,.page .section tr{page-break-inside:avoid}.page .section h2,.page .section h3,.page .section h4,.page .section h5,.page .section p{orphans:3;widows:3}.page .section h1,.page .section h2,.page .section h3,.page .section h4,.page .section h5{page-break-after:avoid}.page .section em{font-style:italic}.page .section blockquote,.page .section dl,.page .section ol,.page .section p,.page .section table,.page .section ul{margin-top:0;margin-bottom:.8em}.page .section a{color:#000;text-decoration:none;background:0 0}.page .section a:active,.page .section a:focus,.page .section a:hover{outline:0;text-decoration:underline}.page .section img{border:0;max-width:100%}.page .section hr{height:4px;padding:0;margin:1.6em 0;overflow:hidden;background-color:#e7e7e7;border:none}.page .section hr:after,.page .section hr:before{display:table;content:" "}.page .section hr:after{clear:both}.page .section h1,.page .section h2,.page .section h3,.page .section h4,.page .section h5,.page .section h6{margin-top:1.2em;margin-bottom:.8em;font-weight:700}.page .section h1{font-size:2em}.page .section h2{font-size:1.75em}.page .section h3{font-size:1.5em}.page .section h4{font-size:1.25em}.page .section h5{font-size:1em}.page .section h6{font-size:1em;color:#777}.page .section code,.page .section pre{font-family:Consolas,"Liberation Mono",Menlo,Courier,monospace;direction:ltr;border:none;color:inherit}.page .section pre{overflow:auto;word-wrap:normal;margin:0 0 1.2em;padding:.85em 1em;background:#f7f7f7}.page .section pre>code{display:inline;max-width:initial;padding:0;margin:0;overflow:initial;line-height:inherit;font-size:.85em;white-space:pre;background:0 0}.page .section pre>code:after,.page .section pre>code:before{content:normal}.page .section code{padding:.2em;margin:0;font-size:.85em;background-color:#f7f7f7}.page .section code:after,.page .section code:before{letter-spacing:-.2em;content:"\00a0"}.page .section table{display:table;width:100%;border-collapse:collapse;border-spacing:0;overflow:auto}.page .book-chapter,.page-toc li .inner span.page{display:none}.page .section table td,.page .section table th{padding:6px 13px;border:1px solid #ddd}.page .section table tr{background-color:#fff;border-top:1px solid #ccc}.page .section table tr:nth-child(2n){background-color:#f8f8f8}.page .section ol,.page .section ul{padding:0 0 0 2em;margin:0 0 .8em}.page .section ol ol,.page .section ol ul,.page .section ul ol,.page .section ul ul{margin-top:0;margin-bottom:0}.page .section ol ol{list-style-type:lower-roman}.page .section blockquote{margin:0 0 .8em;padding:0 15px;color:#858585;border-left:4px solid #e5e5e5}.page .section blockquote:first-child{margin-top:0}.page .section blockquote:last-child{margin-bottom:0}.page .section dl{padding:0}.page .section dl dt{padding:0;margin-top:.8em;font-style:italic}.page .section dl dd{padding:0 .8em;margin-bottom:.8em}.page .section dd{margin-left:0}a{color:#000;text-decoration:underline!important}.page-toc li{list-style-type:lower-alpha}.page-toc li .inner{border:none}
\ No newline at end of file
diff --git a/theme/assets/ebook/pdf.css b/theme/assets/ebook/pdf.css
deleted file mode 100644
index 10bb53e..0000000
--- a/theme/assets/ebook/pdf.css
+++ /dev/null
@@ -1 +0,0 @@
-.section.glossary>h1,.section.toc>h1{text-align:center}.page .section b,.page .section dl dt,.page .section strong,.page .section table th{font-weight:700}.link-inherit,.link-inherit:focus,.link-inherit:hover{color:inherit}.hidden{display:none}.section.toc>ol{margin:0;padding:0}.section.toc li{list-style:none}.section.toc li .inner{display:block;border-bottom:1px dotted #eee;margin-bottom:4px}.section.toc li .inner a,.section.toc li .inner span{padding-right:5px;border-bottom:1px solid #fff;margin-bottom:-1px}.section.toc li .inner .page{float:right;padding-left:5px}.section.toc li ol{margin:0;padding:0 0 0 2em}.dir-rtl .section.toc li .inner .page{float:left}.dir-rtl .section.toc li ol{margin:0;padding:0 2em 0 0}.section.glossary .glossary-entry{margin-bottom:40px}.section.glossary .glossary-entry h2 a,.section.glossary .glossary-entry h2 a:hover{color:inherit;text-decoration:none}.page .section,body{color:#000;text-size-adjust:100%;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%}.section.glossary .glossary-entry .glossary-index{list-style:none;margin:0;padding:0}.section.glossary .glossary-entry .glossary-index li{display:inline;margin:0 8px;white-space:nowrap}body{font-family:sans-serif}.page .section{display:block;word-wrap:break-word;overflow:hidden;line-height:1.6;-moz-text-size-adjust:100%}.page .section *{box-sizing:border-box;-webkit-box-sizing:border-box;font-size:inherit}.page .section>:first-child{margin-top:0!important}.page .section>:last-child{margin-bottom:0!important}.page .section blockquote,.page .section code,.page .section figure,.page .section img,.page .section pre,.page .section table,.page .section tr{page-break-inside:avoid}.page .section h2,.page .section h3,.page .section h4,.page .section h5,.page .section p{orphans:3;widows:3}.page .section h1,.page .section h2,.page .section h3,.page .section h4,.page .section h5{page-break-after:avoid}.page .section em{font-style:italic}.page .section blockquote,.page .section dl,.page .section ol,.page .section p,.page .section table,.page .section ul{margin-top:0;margin-bottom:.8em}.page .section a{color:#4183c4;text-decoration:none;background:0 0}.page .section a:active,.page .section a:focus,.page .section a:hover{outline:0;text-decoration:underline}.page .section img{border:0;max-width:100%}.page .section hr{height:4px;padding:0;margin:1.6em 0;overflow:hidden;background-color:#e7e7e7;border:none}.page .section hr:after,.page .section hr:before{display:table;content:" "}.page .section hr:after{clear:both}.page .section h1,.page .section h2,.page .section h3,.page .section h4,.page .section h5,.page .section h6{margin-top:1.2em;margin-bottom:.8em;font-weight:700}.page .section h1{font-size:2em}.page .section h2{font-size:1.75em}.page .section h3{font-size:1.5em}.page .section h4{font-size:1.25em}.page .section h5{font-size:1em}.page .section h6{font-size:1em;color:#777}.page .section code,.page .section pre{font-family:Consolas,"Liberation Mono",Menlo,Courier,monospace;direction:ltr;border:none;color:inherit}.page .section pre{overflow:auto;word-wrap:normal;margin:0 0 1.2em;padding:.85em 1em;background:#f7f7f7}.page .section pre>code{display:inline;max-width:initial;padding:0;margin:0;overflow:initial;line-height:inherit;font-size:.85em;white-space:pre;background:0 0}.page .section pre>code:after,.page .section pre>code:before{content:normal}.page .section code{padding:.2em;margin:0;font-size:.85em;background-color:#f7f7f7}.page .section code:after,.page .section code:before{letter-spacing:-.2em;content:"\00a0"}.page .section table{display:table;width:100%;border-collapse:collapse;border-spacing:0;overflow:auto}.page .section table td,.page .section table th{padding:6px 13px;border:1px solid #ddd}.page .section table tr{background-color:#fff;border-top:1px solid #ccc}.page .section table tr:nth-child(2n){background-color:#f8f8f8}.page .section ol,.page .section ul{padding:0 0 0 2em;margin:0 0 .8em}.page .section ol ol,.page .section ol ul,.page .section ul ol,.page .section ul ul{margin-top:0;margin-bottom:0}.page .section ol ol{list-style-type:lower-roman}.page .section blockquote{margin:0 0 .8em;padding:0 15px;color:#858585;border-left:4px solid #e5e5e5}.page .section blockquote:first-child{margin-top:0}.page .section blockquote:last-child{margin-bottom:0}.page .section dl{padding:0}.page .section dl dt{padding:0;margin-top:.8em;font-style:italic}.pdf-footer,.pdf-header{margin-top:20px;color:#aaa}.page .section dl dd{padding:0 .8em;margin-bottom:.8em}.page .section dd{margin-left:0}.page .book-chapter{display:none}.pdf-footer{padding-top:10px;border-top:1px solid #eee}.pdf-footer .footer-pages-count{float:right}.pdf-header{padding-bottom:10px;border-bottom:1px solid #eee}
\ No newline at end of file
diff --git a/theme/assets/website/app.js b/theme/assets/website/app.js
deleted file mode 100644
index 46a921b..0000000
--- a/theme/assets/website/app.js
+++ /dev/null
@@ -1,25001 +0,0 @@
-(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-/*!
- * jQuery JavaScript Library v2.1.4
- * http://jquery.com/
- *
- * Includes Sizzle.js
- * http://sizzlejs.com/
- *
- * Copyright 2005, 2014 jQuery Foundation, Inc. and other contributors
- * Released under the MIT license
- * http://jquery.org/license
- *
- * Date: 2015-04-28T16:01Z
- */
-
-(function( global, factory ) {
-
-	if ( typeof module === "object" && typeof module.exports === "object" ) {
-		// For CommonJS and CommonJS-like environments where a proper `window`
-		// is present, execute the factory and get jQuery.
-		// For environments that do not have a `window` with a `document`
-		// (such as Node.js), expose a factory as module.exports.
-		// This accentuates the need for the creation of a real `window`.
-		// e.g. var jQuery = require("jquery")(window);
-		// See ticket #14549 for more info.
-		module.exports = global.document ?
-			factory( global, true ) :
-			function( w ) {
-				if ( !w.document ) {
-					throw new Error( "jQuery requires a window with a document" );
-				}
-				return factory( w );
-			};
-	} else {
-		factory( global );
-	}
-
-// Pass this if window is not defined yet
-}(typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
-
-// Support: Firefox 18+
-// Can't be in strict mode, several libs including ASP.NET trace
-// the stack via arguments.caller.callee and Firefox dies if
-// you try to trace through "use strict" call chains. (#13335)
-//
-
-var arr = [];
-
-var slice = arr.slice;
-
-var concat = arr.concat;
-
-var push = arr.push;
-
-var indexOf = arr.indexOf;
-
-var class2type = {};
-
-var toString = class2type.toString;
-
-var hasOwn = class2type.hasOwnProperty;
-
-var support = {};
-
-
-
-var
-	// Use the correct document accordingly with window argument (sandbox)
-	document = window.document,
-
-	version = "2.1.4",
-
-	// Define a local copy of jQuery
-	jQuery = function( selector, context ) {
-		// The jQuery object is actually just the init constructor 'enhanced'
-		// Need init if jQuery is called (just allow error to be thrown if not included)
-		return new jQuery.fn.init( selector, context );
-	},
-
-	// Support: Android<4.1
-	// Make sure we trim BOM and NBSP
-	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
-
-	// Matches dashed string for camelizing
-	rmsPrefix = /^-ms-/,
-	rdashAlpha = /-([\da-z])/gi,
-
-	// Used by jQuery.camelCase as callback to replace()
-	fcamelCase = function( all, letter ) {
-		return letter.toUpperCase();
-	};
-
-jQuery.fn = jQuery.prototype = {
-	// The current version of jQuery being used
-	jquery: version,
-
-	constructor: jQuery,
-
-	// Start with an empty selector
-	selector: "",
-
-	// The default length of a jQuery object is 0
-	length: 0,
-
-	toArray: function() {
-		return slice.call( this );
-	},
-
-	// Get the Nth element in the matched element set OR
-	// Get the whole matched element set as a clean array
-	get: function( num ) {
-		return num != null ?
-
-			// Return just the one element from the set
-			( num < 0 ? this[ num + this.length ] : this[ num ] ) :
-
-			// Return all the elements in a clean array
-			slice.call( this );
-	},
-
-	// Take an array of elements and push it onto the stack
-	// (returning the new matched element set)
-	pushStack: function( elems ) {
-
-		// Build a new jQuery matched element set
-		var ret = jQuery.merge( this.constructor(), elems );
-
-		// Add the old object onto the stack (as a reference)
-		ret.prevObject = this;
-		ret.context = this.context;
-
-		// Return the newly-formed element set
-		return ret;
-	},
-
-	// Execute a callback for every element in the matched set.
-	// (You can seed the arguments with an array of args, but this is
-	// only used internally.)
-	each: function( callback, args ) {
-		return jQuery.each( this, callback, args );
-	},
-
-	map: function( callback ) {
-		return this.pushStack( jQuery.map(this, function( elem, i ) {
-			return callback.call( elem, i, elem );
-		}));
-	},
-
-	slice: function() {
-		return this.pushStack( slice.apply( this, arguments ) );
-	},
-
-	first: function() {
-		return this.eq( 0 );
-	},
-
-	last: function() {
-		return this.eq( -1 );
-	},
-
-	eq: function( i ) {
-		var len = this.length,
-			j = +i + ( i < 0 ? len : 0 );
-		return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
-	},
-
-	end: function() {
-		return this.prevObject || this.constructor(null);
-	},
-
-	// For internal use only.
-	// Behaves like an Array's method, not like a jQuery method.
-	push: push,
-	sort: arr.sort,
-	splice: arr.splice
-};
-
-jQuery.extend = jQuery.fn.extend = function() {
-	var options, name, src, copy, copyIsArray, clone,
-		target = arguments[0] || {},
-		i = 1,
-		length = arguments.length,
-		deep = false;
-
-	// Handle a deep copy situation
-	if ( typeof target === "boolean" ) {
-		deep = target;
-
-		// Skip the boolean and the target
-		target = arguments[ i ] || {};
-		i++;
-	}
-
-	// Handle case when target is a string or something (possible in deep copy)
-	if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
-		target = {};
-	}
-
-	// Extend jQuery itself if only one argument is passed
-	if ( i === length ) {
-		target = this;
-		i--;
-	}
-
-	for ( ; i < length; i++ ) {
-		// Only deal with non-null/undefined values
-		if ( (options = arguments[ i ]) != null ) {
-			// Extend the base object
-			for ( name in options ) {
-				src = target[ name ];
-				copy = options[ name ];
-
-				// Prevent never-ending loop
-				if ( target === copy ) {
-					continue;
-				}
-
-				// Recurse if we're merging plain objects or arrays
-				if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
-					if ( copyIsArray ) {
-						copyIsArray = false;
-						clone = src && jQuery.isArray(src) ? src : [];
-
-					} else {
-						clone = src && jQuery.isPlainObject(src) ? src : {};
-					}
-
-					// Never move original objects, clone them
-					target[ name ] = jQuery.extend( deep, clone, copy );
-
-				// Don't bring in undefined values
-				} else if ( copy !== undefined ) {
-					target[ name ] = copy;
-				}
-			}
-		}
-	}
-
-	// Return the modified object
-	return target;
-};
-
-jQuery.extend({
-	// Unique for each copy of jQuery on the page
-	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
-
-	// Assume jQuery is ready without the ready module
-	isReady: true,
-
-	error: function( msg ) {
-		throw new Error( msg );
-	},
-
-	noop: function() {},
-
-	isFunction: function( obj ) {
-		return jQuery.type(obj) === "function";
-	},
-
-	isArray: Array.isArray,
-
-	isWindow: function( obj ) {
-		return obj != null && obj === obj.window;
-	},
-
-	isNumeric: function( obj ) {
-		// parseFloat NaNs numeric-cast false positives (null|true|false|"")
-		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
-		// subtraction forces infinities to NaN
-		// adding 1 corrects loss of precision from parseFloat (#15100)
-		return !jQuery.isArray( obj ) && (obj - parseFloat( obj ) + 1) >= 0;
-	},
-
-	isPlainObject: function( obj ) {
-		// Not plain objects:
-		// - Any object or value whose internal [[Class]] property is not "[object Object]"
-		// - DOM nodes
-		// - window
-		if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
-			return false;
-		}
-
-		if ( obj.constructor &&
-				!hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {
-			return false;
-		}
-
-		// If the function hasn't returned already, we're confident that
-		// |obj| is a plain object, created by {} or constructed with new Object
-		return true;
-	},
-
-	isEmptyObject: function( obj ) {
-		var name;
-		for ( name in obj ) {
-			return false;
-		}
-		return true;
-	},
-
-	type: function( obj ) {
-		if ( obj == null ) {
-			return obj + "";
-		}
-		// Support: Android<4.0, iOS<6 (functionish RegExp)
-		return typeof obj === "object" || typeof obj === "function" ?
-			class2type[ toString.call(obj) ] || "object" :
-			typeof obj;
-	},
-
-	// Evaluates a script in a global context
-	globalEval: function( code ) {
-		var script,
-			indirect = eval;
-
-		code = jQuery.trim( code );
-
-		if ( code ) {
-			// If the code includes a valid, prologue position
-			// strict mode pragma, execute code by injecting a
-			// script tag into the document.
-			if ( code.indexOf("use strict") === 1 ) {
-				script = document.createElement("script");
-				script.text = code;
-				document.head.appendChild( script ).parentNode.removeChild( script );
-			} else {
-			// Otherwise, avoid the DOM node creation, insertion
-			// and removal by using an indirect global eval
-				indirect( code );
-			}
-		}
-	},
-
-	// Convert dashed to camelCase; used by the css and data modules
-	// Support: IE9-11+
-	// Microsoft forgot to hump their vendor prefix (#9572)
-	camelCase: function( string ) {
-		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
-	},
-
-	nodeName: function( elem, name ) {
-		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
-	},
-
-	// args is for internal usage only
-	each: function( obj, callback, args ) {
-		var value,
-			i = 0,
-			length = obj.length,
-			isArray = isArraylike( obj );
-
-		if ( args ) {
-			if ( isArray ) {
-				for ( ; i < length; i++ ) {
-					value = callback.apply( obj[ i ], args );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( i in obj ) {
-					value = callback.apply( obj[ i ], args );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			}
-
-		// A special, fast, case for the most common use of each
-		} else {
-			if ( isArray ) {
-				for ( ; i < length; i++ ) {
-					value = callback.call( obj[ i ], i, obj[ i ] );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( i in obj ) {
-					value = callback.call( obj[ i ], i, obj[ i ] );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			}
-		}
-
-		return obj;
-	},
-
-	// Support: Android<4.1
-	trim: function( text ) {
-		return text == null ?
-			"" :
-			( text + "" ).replace( rtrim, "" );
-	},
-
-	// results is for internal usage only
-	makeArray: function( arr, results ) {
-		var ret = results || [];
-
-		if ( arr != null ) {
-			if ( isArraylike( Object(arr) ) ) {
-				jQuery.merge( ret,
-					typeof arr === "string" ?
-					[ arr ] : arr
-				);
-			} else {
-				push.call( ret, arr );
-			}
-		}
-
-		return ret;
-	},
-
-	inArray: function( elem, arr, i ) {
-		return arr == null ? -1 : indexOf.call( arr, elem, i );
-	},
-
-	merge: function( first, second ) {
-		var len = +second.length,
-			j = 0,
-			i = first.length;
-
-		for ( ; j < len; j++ ) {
-			first[ i++ ] = second[ j ];
-		}
-
-		first.length = i;
-
-		return first;
-	},
-
-	grep: function( elems, callback, invert ) {
-		var callbackInverse,
-			matches = [],
-			i = 0,
-			length = elems.length,
-			callbackExpect = !invert;
-
-		// Go through the array, only saving the items
-		// that pass the validator function
-		for ( ; i < length; i++ ) {
-			callbackInverse = !callback( elems[ i ], i );
-			if ( callbackInverse !== callbackExpect ) {
-				matches.push( elems[ i ] );
-			}
-		}
-
-		return matches;
-	},
-
-	// arg is for internal usage only
-	map: function( elems, callback, arg ) {
-		var value,
-			i = 0,
-			length = elems.length,
-			isArray = isArraylike( elems ),
-			ret = [];
-
-		// Go through the array, translating each of the items to their new values
-		if ( isArray ) {
-			for ( ; i < length; i++ ) {
-				value = callback( elems[ i ], i, arg );
-
-				if ( value != null ) {
-					ret.push( value );
-				}
-			}
-
-		// Go through every key on the object,
-		} else {
-			for ( i in elems ) {
-				value = callback( elems[ i ], i, arg );
-
-				if ( value != null ) {
-					ret.push( value );
-				}
-			}
-		}
-
-		// Flatten any nested arrays
-		return concat.apply( [], ret );
-	},
-
-	// A global GUID counter for objects
-	guid: 1,
-
-	// Bind a function to a context, optionally partially applying any
-	// arguments.
-	proxy: function( fn, context ) {
-		var tmp, args, proxy;
-
-		if ( typeof context === "string" ) {
-			tmp = fn[ context ];
-			context = fn;
-			fn = tmp;
-		}
-
-		// Quick check to determine if target is callable, in the spec
-		// this throws a TypeError, but we will just return undefined.
-		if ( !jQuery.isFunction( fn ) ) {
-			return undefined;
-		}
-
-		// Simulated bind
-		args = slice.call( arguments, 2 );
-		proxy = function() {
-			return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
-		};
-
-		// Set the guid of unique handler to the same of original handler, so it can be removed
-		proxy.guid = fn.guid = fn.guid || jQuery.guid++;
-
-		return proxy;
-	},
-
-	now: Date.now,
-
-	// jQuery.support is not used in Core but other projects attach their
-	// properties to it so it needs to exist.
-	support: support
-});
-
-// Populate the class2type map
-jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
-	class2type[ "[object " + name + "]" ] = name.toLowerCase();
-});
-
-function isArraylike( obj ) {
-
-	// Support: iOS 8.2 (not reproducible in simulator)
-	// `in` check used to prevent JIT error (gh-2145)
-	// hasOwn isn't used here due to false negatives
-	// regarding Nodelist length in IE
-	var length = "length" in obj && obj.length,
-		type = jQuery.type( obj );
-
-	if ( type === "function" || jQuery.isWindow( obj ) ) {
-		return false;
-	}
-
-	if ( obj.nodeType === 1 && length ) {
-		return true;
-	}
-
-	return type === "array" || length === 0 ||
-		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
-}
-var Sizzle =
-/*!
- * Sizzle CSS Selector Engine v2.2.0-pre
- * http://sizzlejs.com/
- *
- * Copyright 2008, 2014 jQuery Foundation, Inc. and other contributors
- * Released under the MIT license
- * http://jquery.org/license
- *
- * Date: 2014-12-16
- */
-(function( window ) {
-
-var i,
-	support,
-	Expr,
-	getText,
-	isXML,
-	tokenize,
-	compile,
-	select,
-	outermostContext,
-	sortInput,
-	hasDuplicate,
-
-	// Local document vars
-	setDocument,
-	document,
-	docElem,
-	documentIsHTML,
-	rbuggyQSA,
-	rbuggyMatches,
-	matches,
-	contains,
-
-	// Instance-specific data
-	expando = "sizzle" + 1 * new Date(),
-	preferredDoc = window.document,
-	dirruns = 0,
-	done = 0,
-	classCache = createCache(),
-	tokenCache = createCache(),
-	compilerCache = createCache(),
-	sortOrder = function( a, b ) {
-		if ( a === b ) {
-			hasDuplicate = true;
-		}
-		return 0;
-	},
-
-	// General-purpose constants
-	MAX_NEGATIVE = 1 << 31,
-
-	// Instance methods
-	hasOwn = ({}).hasOwnProperty,
-	arr = [],
-	pop = arr.pop,
-	push_native = arr.push,
-	push = arr.push,
-	slice = arr.slice,
-	// Use a stripped-down indexOf as it's faster than native
-	// http://jsperf.com/thor-indexof-vs-for/5
-	indexOf = function( list, elem ) {
-		var i = 0,
-			len = list.length;
-		for ( ; i < len; i++ ) {
-			if ( list[i] === elem ) {
-				return i;
-			}
-		}
-		return -1;
-	},
-
-	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
-
-	// Regular expressions
-
-	// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
-	whitespace = "[\\x20\\t\\r\\n\\f]",
-	// http://www.w3.org/TR/css3-syntax/#characters
-	characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
-
-	// Loosely modeled on CSS identifier characters
-	// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
-	// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
-	identifier = characterEncoding.replace( "w", "w#" ),
-
-	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
-	attributes = "\\[" + whitespace + "*(" + characterEncoding + ")(?:" + whitespace +
-		// Operator (capture 2)
-		"*([*^$|!~]?=)" + whitespace +
-		// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
-		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
-		"*\\]",
-
-	pseudos = ":(" + characterEncoding + ")(?:\\((" +
-		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
-		// 1. quoted (capture 3; capture 4 or capture 5)
-		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
-		// 2. simple (capture 6)
-		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
-		// 3. anything else (capture 2)
-		".*" +
-		")\\)|)",
-
-	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
-	rwhitespace = new RegExp( whitespace + "+", "g" ),
-	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
-
-	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
-	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
-
-	rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
-
-	rpseudo = new RegExp( pseudos ),
-	ridentifier = new RegExp( "^" + identifier + "$" ),
-
-	matchExpr = {
-		"ID": new RegExp( "^#(" + characterEncoding + ")" ),
-		"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
-		"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
-		"ATTR": new RegExp( "^" + attributes ),
-		"PSEUDO": new RegExp( "^" + pseudos ),
-		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
-			"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
-			"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
-		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
-		// For use in libraries implementing .is()
-		// We use this for POS matching in `select`
-		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
-			whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
-	},
-
-	rinputs = /^(?:input|select|textarea|button)$/i,
-	rheader = /^h\d$/i,
-
-	rnative = /^[^{]+\{\s*\[native \w/,
-
-	// Easily-parseable/retrievable ID or TAG or CLASS selectors
-	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
-
-	rsibling = /[+~]/,
-	rescape = /'|\\/g,
-
-	// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
-	runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
-	funescape = function( _, escaped, escapedWhitespace ) {
-		var high = "0x" + escaped - 0x10000;
-		// NaN means non-codepoint
-		// Support: Firefox<24
-		// Workaround erroneous numeric interpretation of +"0x"
-		return high !== high || escapedWhitespace ?
-			escaped :
-			high < 0 ?
-				// BMP codepoint
-				String.fromCharCode( high + 0x10000 ) :
-				// Supplemental Plane codepoint (surrogate pair)
-				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
-	},
-
-	// Used for iframes
-	// See setDocument()
-	// Removing the function wrapper causes a "Permission Denied"
-	// error in IE
-	unloadHandler = function() {
-		setDocument();
-	};
-
-// Optimize for push.apply( _, NodeList )
-try {
-	push.apply(
-		(arr = slice.call( preferredDoc.childNodes )),
-		preferredDoc.childNodes
-	);
-	// Support: Android<4.0
-	// Detect silently failing push.apply
-	arr[ preferredDoc.childNodes.length ].nodeType;
-} catch ( e ) {
-	push = { apply: arr.length ?
-
-		// Leverage slice if possible
-		function( target, els ) {
-			push_native.apply( target, slice.call(els) );
-		} :
-
-		// Support: IE<9
-		// Otherwise append directly
-		function( target, els ) {
-			var j = target.length,
-				i = 0;
-			// Can't trust NodeList.length
-			while ( (target[j++] = els[i++]) ) {}
-			target.length = j - 1;
-		}
-	};
-}
-
-function Sizzle( selector, context, results, seed ) {
-	var match, elem, m, nodeType,
-		// QSA vars
-		i, groups, old, nid, newContext, newSelector;
-
-	if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
-		setDocument( context );
-	}
-
-	context = context || document;
-	results = results || [];
-	nodeType = context.nodeType;
-
-	if ( typeof selector !== "string" || !selector ||
-		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
-
-		return results;
-	}
-
-	if ( !seed && documentIsHTML ) {
-
-		// Try to shortcut find operations when possible (e.g., not under DocumentFragment)
-		if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
-			// Speed-up: Sizzle("#ID")
-			if ( (m = match[1]) ) {
-				if ( nodeType === 9 ) {
-					elem = context.getElementById( m );
-					// Check parentNode to catch when Blackberry 4.6 returns
-					// nodes that are no longer in the document (jQuery #6963)
-					if ( elem && elem.parentNode ) {
-						// Handle the case where IE, Opera, and Webkit return items
-						// by name instead of ID
-						if ( elem.id === m ) {
-							results.push( elem );
-							return results;
-						}
-					} else {
-						return results;
-					}
-				} else {
-					// Context is not a document
-					if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
-						contains( context, elem ) && elem.id === m ) {
-						results.push( elem );
-						return results;
-					}
-				}
-
-			// Speed-up: Sizzle("TAG")
-			} else if ( match[2] ) {
-				push.apply( results, context.getElementsByTagName( selector ) );
-				return results;
-
-			// Speed-up: Sizzle(".CLASS")
-			} else if ( (m = match[3]) && support.getElementsByClassName ) {
-				push.apply( results, context.getElementsByClassName( m ) );
-				return results;
-			}
-		}
-
-		// QSA path
-		if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
-			nid = old = expando;
-			newContext = context;
-			newSelector = nodeType !== 1 && selector;
-
-			// qSA works strangely on Element-rooted queries
-			// We can work around this by specifying an extra ID on the root
-			// and working up from there (Thanks to Andrew Dupont for the technique)
-			// IE 8 doesn't work on object elements
-			if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
-				groups = tokenize( selector );
-
-				if ( (old = context.getAttribute("id")) ) {
-					nid = old.replace( rescape, "\\$&" );
-				} else {
-					context.setAttribute( "id", nid );
-				}
-				nid = "[id='" + nid + "'] ";
-
-				i = groups.length;
-				while ( i-- ) {
-					groups[i] = nid + toSelector( groups[i] );
-				}
-				newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context;
-				newSelector = groups.join(",");
-			}
-
-			if ( newSelector ) {
-				try {
-					push.apply( results,
-						newContext.querySelectorAll( newSelector )
-					);
-					return results;
-				} catch(qsaError) {
-				} finally {
-					if ( !old ) {
-						context.removeAttribute("id");
-					}
-				}
-			}
-		}
-	}
-
-	// All others
-	return select( selector.replace( rtrim, "$1" ), context, results, seed );
-}
-
-/**
- * Create key-value caches of limited size
- * @returns {Function(string, Object)} Returns the Object data after storing it on itself with
- *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
- *	deleting the oldest entry
- */
-function createCache() {
-	var keys = [];
-
-	function cache( key, value ) {
-		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
-		if ( keys.push( key + " " ) > Expr.cacheLength ) {
-			// Only keep the most recent entries
-			delete cache[ keys.shift() ];
-		}
-		return (cache[ key + " " ] = value);
-	}
-	return cache;
-}
-
-/**
- * Mark a function for special use by Sizzle
- * @param {Function} fn The function to mark
- */
-function markFunction( fn ) {
-	fn[ expando ] = true;
-	return fn;
-}
-
-/**
- * Support testing using an element
- * @param {Function} fn Passed the created div and expects a boolean result
- */
-function assert( fn ) {
-	var div = document.createElement("div");
-
-	try {
-		return !!fn( div );
-	} catch (e) {
-		return false;
-	} finally {
-		// Remove from its parent by default
-		if ( div.parentNode ) {
-			div.parentNode.removeChild( div );
-		}
-		// release memory in IE
-		div = null;
-	}
-}
-
-/**
- * Adds the same handler for all of the specified attrs
- * @param {String} attrs Pipe-separated list of attributes
- * @param {Function} handler The method that will be applied
- */
-function addHandle( attrs, handler ) {
-	var arr = attrs.split("|"),
-		i = attrs.length;
-
-	while ( i-- ) {
-		Expr.attrHandle[ arr[i] ] = handler;
-	}
-}
-
-/**
- * Checks document order of two siblings
- * @param {Element} a
- * @param {Element} b
- * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
- */
-function siblingCheck( a, b ) {
-	var cur = b && a,
-		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
-			( ~b.sourceIndex || MAX_NEGATIVE ) -
-			( ~a.sourceIndex || MAX_NEGATIVE );
-
-	// Use IE sourceIndex if available on both nodes
-	if ( diff ) {
-		return diff;
-	}
-
-	// Check if b follows a
-	if ( cur ) {
-		while ( (cur = cur.nextSibling) ) {
-			if ( cur === b ) {
-				return -1;
-			}
-		}
-	}
-
-	return a ? 1 : -1;
-}
-
-/**
- * Returns a function to use in pseudos for input types
- * @param {String} type
- */
-function createInputPseudo( type ) {
-	return function( elem ) {
-		var name = elem.nodeName.toLowerCase();
-		return name === "input" && elem.type === type;
-	};
-}
-
-/**
- * Returns a function to use in pseudos for buttons
- * @param {String} type
- */
-function createButtonPseudo( type ) {
-	return function( elem ) {
-		var name = elem.nodeName.toLowerCase();
-		return (name === "input" || name === "button") && elem.type === type;
-	};
-}
-
-/**
- * Returns a function to use in pseudos for positionals
- * @param {Function} fn
- */
-function createPositionalPseudo( fn ) {
-	return markFunction(function( argument ) {
-		argument = +argument;
-		return markFunction(function( seed, matches ) {
-			var j,
-				matchIndexes = fn( [], seed.length, argument ),
-				i = matchIndexes.length;
-
-			// Match elements found at the specified indexes
-			while ( i-- ) {
-				if ( seed[ (j = matchIndexes[i]) ] ) {
-					seed[j] = !(matches[j] = seed[j]);
-				}
-			}
-		});
-	});
-}
-
-/**
- * Checks a node for validity as a Sizzle context
- * @param {Element|Object=} context
- * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
- */
-function testContext( context ) {
-	return context && typeof context.getElementsByTagName !== "undefined" && context;
-}
-
-// Expose support vars for convenience
-support = Sizzle.support = {};
-
-/**
- * Detects XML nodes
- * @param {Element|Object} elem An element or a document
- * @returns {Boolean} True iff elem is a non-HTML XML node
- */
-isXML = Sizzle.isXML = function( elem ) {
-	// documentElement is verified for cases where it doesn't yet exist
-	// (such as loading iframes in IE - #4833)
-	var documentElement = elem && (elem.ownerDocument || elem).documentElement;
-	return documentElement ? documentElement.nodeName !== "HTML" : false;
-};
-
-/**
- * Sets document-related variables once based on the current document
- * @param {Element|Object} [doc] An element or document object to use to set the document
- * @returns {Object} Returns the current document
- */
-setDocument = Sizzle.setDocument = function( node ) {
-	var hasCompare, parent,
-		doc = node ? node.ownerDocument || node : preferredDoc;
-
-	// If no document and documentElement is available, return
-	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
-		return document;
-	}
-
-	// Set our document
-	document = doc;
-	docElem = doc.documentElement;
-	parent = doc.defaultView;
-
-	// Support: IE>8
-	// If iframe document is assigned to "document" variable and if iframe has been reloaded,
-	// IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
-	// IE6-8 do not support the defaultView property so parent will be undefined
-	if ( parent && parent !== parent.top ) {
-		// IE11 does not have attachEvent, so all must suffer
-		if ( parent.addEventListener ) {
-			parent.addEventListener( "unload", unloadHandler, false );
-		} else if ( parent.attachEvent ) {
-			parent.attachEvent( "onunload", unloadHandler );
-		}
-	}
-
-	/* Support tests
-	---------------------------------------------------------------------- */
-	documentIsHTML = !isXML( doc );
-
-	/* Attributes
-	---------------------------------------------------------------------- */
-
-	// Support: IE<8
-	// Verify that getAttribute really returns attributes and not properties
-	// (excepting IE8 booleans)
-	support.attributes = assert(function( div ) {
-		div.className = "i";
-		return !div.getAttribute("className");
-	});
-
-	/* getElement(s)By*
-	---------------------------------------------------------------------- */
-
-	// Check if getElementsByTagName("*") returns only elements
-	support.getElementsByTagName = assert(function( div ) {
-		div.appendChild( doc.createComment("") );
-		return !div.getElementsByTagName("*").length;
-	});
-
-	// Support: IE<9
-	support.getElementsByClassName = rnative.test( doc.getElementsByClassName );
-
-	// Support: IE<10
-	// Check if getElementById returns elements by name
-	// The broken getElementById methods don't pick up programatically-set names,
-	// so use a roundabout getElementsByName test
-	support.getById = assert(function( div ) {
-		docElem.appendChild( div ).id = expando;
-		return !doc.getElementsByName || !doc.getElementsByName( expando ).length;
-	});
-
-	// ID find and filter
-	if ( support.getById ) {
-		Expr.find["ID"] = function( id, context ) {
-			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
-				var m = context.getElementById( id );
-				// Check parentNode to catch when Blackberry 4.6 returns
-				// nodes that are no longer in the document #6963
-				return m && m.parentNode ? [ m ] : [];
-			}
-		};
-		Expr.filter["ID"] = function( id ) {
-			var attrId = id.replace( runescape, funescape );
-			return function( elem ) {
-				return elem.getAttribute("id") === attrId;
-			};
-		};
-	} else {
-		// Support: IE6/7
-		// getElementById is not reliable as a find shortcut
-		delete Expr.find["ID"];
-
-		Expr.filter["ID"] =  function( id ) {
-			var attrId = id.replace( runescape, funescape );
-			return function( elem ) {
-				var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
-				return node && node.value === attrId;
-			};
-		};
-	}
-
-	// Tag
-	Expr.find["TAG"] = support.getElementsByTagName ?
-		function( tag, context ) {
-			if ( typeof context.getElementsByTagName !== "undefined" ) {
-				return context.getElementsByTagName( tag );
-
-			// DocumentFragment nodes don't have gEBTN
-			} else if ( support.qsa ) {
-				return context.querySelectorAll( tag );
-			}
-		} :
-
-		function( tag, context ) {
-			var elem,
-				tmp = [],
-				i = 0,
-				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
-				results = context.getElementsByTagName( tag );
-
-			// Filter out possible comments
-			if ( tag === "*" ) {
-				while ( (elem = results[i++]) ) {
-					if ( elem.nodeType === 1 ) {
-						tmp.push( elem );
-					}
-				}
-
-				return tmp;
-			}
-			return results;
-		};
-
-	// Class
-	Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
-		if ( documentIsHTML ) {
-			return context.getElementsByClassName( className );
-		}
-	};
-
-	/* QSA/matchesSelector
-	---------------------------------------------------------------------- */
-
-	// QSA and matchesSelector support
-
-	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
-	rbuggyMatches = [];
-
-	// qSa(:focus) reports false when true (Chrome 21)
-	// We allow this because of a bug in IE8/9 that throws an error
-	// whenever `document.activeElement` is accessed on an iframe
-	// So, we allow :focus to pass through QSA all the time to avoid the IE error
-	// See http://bugs.jquery.com/ticket/13378
-	rbuggyQSA = [];
-
-	if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {
-		// Build QSA regex
-		// Regex strategy adopted from Diego Perini
-		assert(function( div ) {
-			// Select is set to empty string on purpose
-			// This is to test IE's treatment of not explicitly
-			// setting a boolean content attribute,
-			// since its presence should be enough
-			// http://bugs.jquery.com/ticket/12359
-			docElem.appendChild( div ).innerHTML = "<a id='" + expando + "'></a>" +
-				"<select id='" + expando + "-\f]' msallowcapture=''>" +
-				"<option selected=''></option></select>";
-
-			// Support: IE8, Opera 11-12.16
-			// Nothing should be selected when empty strings follow ^= or $= or *=
-			// The test attribute must be unknown in Opera but "safe" for WinRT
-			// http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
-			if ( div.querySelectorAll("[msallowcapture^='']").length ) {
-				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
-			}
-
-			// Support: IE8
-			// Boolean attributes and "value" are not treated correctly
-			if ( !div.querySelectorAll("[selected]").length ) {
-				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
-			}
-
-			// Support: Chrome<29, Android<4.2+, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.7+
-			if ( !div.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
-				rbuggyQSA.push("~=");
-			}
-
-			// Webkit/Opera - :checked should return selected option elements
-			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-			// IE8 throws error here and will not see later tests
-			if ( !div.querySelectorAll(":checked").length ) {
-				rbuggyQSA.push(":checked");
-			}
-
-			// Support: Safari 8+, iOS 8+
-			// https://bugs.webkit.org/show_bug.cgi?id=136851
-			// In-page `selector#id sibing-combinator selector` fails
-			if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) {
-				rbuggyQSA.push(".#.+[+~]");
-			}
-		});
-
-		assert(function( div ) {
-			// Support: Windows 8 Native Apps
-			// The type and name attributes are restricted during .innerHTML assignment
-			var input = doc.createElement("input");
-			input.setAttribute( "type", "hidden" );
-			div.appendChild( input ).setAttribute( "name", "D" );
-
-			// Support: IE8
-			// Enforce case-sensitivity of name attribute
-			if ( div.querySelectorAll("[name=d]").length ) {
-				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
-			}
-
-			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
-			// IE8 throws error here and will not see later tests
-			if ( !div.querySelectorAll(":enabled").length ) {
-				rbuggyQSA.push( ":enabled", ":disabled" );
-			}
-
-			// Opera 10-11 does not throw on post-comma invalid pseudos
-			div.querySelectorAll("*,:x");
-			rbuggyQSA.push(",.*:");
-		});
-	}
-
-	if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
-		docElem.webkitMatchesSelector ||
-		docElem.mozMatchesSelector ||
-		docElem.oMatchesSelector ||
-		docElem.msMatchesSelector) )) ) {
-
-		assert(function( div ) {
-			// Check to see if it's possible to do matchesSelector
-			// on a disconnected node (IE 9)
-			support.disconnectedMatch = matches.call( div, "div" );
-
-			// This should fail with an exception
-			// Gecko does not error, returns false instead
-			matches.call( div, "[s!='']:x" );
-			rbuggyMatches.push( "!=", pseudos );
-		});
-	}
-
-	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
-	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
-
-	/* Contains
-	---------------------------------------------------------------------- */
-	hasCompare = rnative.test( docElem.compareDocumentPosition );
-
-	// Element contains another
-	// Purposefully does not implement inclusive descendent
-	// As in, an element does not contain itself
-	contains = hasCompare || rnative.test( docElem.contains ) ?
-		function( a, b ) {
-			var adown = a.nodeType === 9 ? a.documentElement : a,
-				bup = b && b.parentNode;
-			return a === bup || !!( bup && bup.nodeType === 1 && (
-				adown.contains ?
-					adown.contains( bup ) :
-					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
-			));
-		} :
-		function( a, b ) {
-			if ( b ) {
-				while ( (b = b.parentNode) ) {
-					if ( b === a ) {
-						return true;
-					}
-				}
-			}
-			return false;
-		};
-
-	/* Sorting
-	---------------------------------------------------------------------- */
-
-	// Document order sorting
-	sortOrder = hasCompare ?
-	function( a, b ) {
-
-		// Flag for duplicate removal
-		if ( a === b ) {
-			hasDuplicate = true;
-			return 0;
-		}
-
-		// Sort on method existence if only one input has compareDocumentPosition
-		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
-		if ( compare ) {
-			return compare;
-		}
-
-		// Calculate position if both inputs belong to the same document
-		compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
-			a.compareDocumentPosition( b ) :
-
-			// Otherwise we know they are disconnected
-			1;
-
-		// Disconnected nodes
-		if ( compare & 1 ||
-			(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
-
-			// Choose the first element that is related to our preferred document
-			if ( a === doc || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
-				return -1;
-			}
-			if ( b === doc || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
-				return 1;
-			}
-
-			// Maintain original order
-			return sortInput ?
-				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
-				0;
-		}
-
-		return compare & 4 ? -1 : 1;
-	} :
-	function( a, b ) {
-		// Exit early if the nodes are identical
-		if ( a === b ) {
-			hasDuplicate = true;
-			return 0;
-		}
-
-		var cur,
-			i = 0,
-			aup = a.parentNode,
-			bup = b.parentNode,
-			ap = [ a ],
-			bp = [ b ];
-
-		// Parentless nodes are either documents or disconnected
-		if ( !aup || !bup ) {
-			return a === doc ? -1 :
-				b === doc ? 1 :
-				aup ? -1 :
-				bup ? 1 :
-				sortInput ?
-				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
-				0;
-
-		// If the nodes are siblings, we can do a quick check
-		} else if ( aup === bup ) {
-			return siblingCheck( a, b );
-		}
-
-		// Otherwise we need full lists of their ancestors for comparison
-		cur = a;
-		while ( (cur = cur.parentNode) ) {
-			ap.unshift( cur );
-		}
-		cur = b;
-		while ( (cur = cur.parentNode) ) {
-			bp.unshift( cur );
-		}
-
-		// Walk down the tree looking for a discrepancy
-		while ( ap[i] === bp[i] ) {
-			i++;
-		}
-
-		return i ?
-			// Do a sibling check if the nodes have a common ancestor
-			siblingCheck( ap[i], bp[i] ) :
-
-			// Otherwise nodes in our document sort first
-			ap[i] === preferredDoc ? -1 :
-			bp[i] === preferredDoc ? 1 :
-			0;
-	};
-
-	return doc;
-};
-
-Sizzle.matches = function( expr, elements ) {
-	return Sizzle( expr, null, null, elements );
-};
-
-Sizzle.matchesSelector = function( elem, expr ) {
-	// Set document vars if needed
-	if ( ( elem.ownerDocument || elem ) !== document ) {
-		setDocument( elem );
-	}
-
-	// Make sure that attribute selectors are quoted
-	expr = expr.replace( rattributeQuotes, "='$1']" );
-
-	if ( support.matchesSelector && documentIsHTML &&
-		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
-		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
-
-		try {
-			var ret = matches.call( elem, expr );
-
-			// IE 9's matchesSelector returns false on disconnected nodes
-			if ( ret || support.disconnectedMatch ||
-					// As well, disconnected nodes are said to be in a document
-					// fragment in IE 9
-					elem.document && elem.document.nodeType !== 11 ) {
-				return ret;
-			}
-		} catch (e) {}
-	}
-
-	return Sizzle( expr, document, null, [ elem ] ).length > 0;
-};
-
-Sizzle.contains = function( context, elem ) {
-	// Set document vars if needed
-	if ( ( context.ownerDocument || context ) !== document ) {
-		setDocument( context );
-	}
-	return contains( context, elem );
-};
-
-Sizzle.attr = function( elem, name ) {
-	// Set document vars if needed
-	if ( ( elem.ownerDocument || elem ) !== document ) {
-		setDocument( elem );
-	}
-
-	var fn = Expr.attrHandle[ name.toLowerCase() ],
-		// Don't get fooled by Object.prototype properties (jQuery #13807)
-		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
-			fn( elem, name, !documentIsHTML ) :
-			undefined;
-
-	return val !== undefined ?
-		val :
-		support.attributes || !documentIsHTML ?
-			elem.getAttribute( name ) :
-			(val = elem.getAttributeNode(name)) && val.specified ?
-				val.value :
-				null;
-};
-
-Sizzle.error = function( msg ) {
-	throw new Error( "Syntax error, unrecognized expression: " + msg );
-};
-
-/**
- * Document sorting and removing duplicates
- * @param {ArrayLike} results
- */
-Sizzle.uniqueSort = function( results ) {
-	var elem,
-		duplicates = [],
-		j = 0,
-		i = 0;
-
-	// Unless we *know* we can detect duplicates, assume their presence
-	hasDuplicate = !support.detectDuplicates;
-	sortInput = !support.sortStable && results.slice( 0 );
-	results.sort( sortOrder );
-
-	if ( hasDuplicate ) {
-		while ( (elem = results[i++]) ) {
-			if ( elem === results[ i ] ) {
-				j = duplicates.push( i );
-			}
-		}
-		while ( j-- ) {
-			results.splice( duplicates[ j ], 1 );
-		}
-	}
-
-	// Clear input after sorting to release objects
-	// See https://github.com/jquery/sizzle/pull/225
-	sortInput = null;
-
-	return results;
-};
-
-/**
- * Utility function for retrieving the text value of an array of DOM nodes
- * @param {Array|Element} elem
- */
-getText = Sizzle.getText = function( elem ) {
-	var node,
-		ret = "",
-		i = 0,
-		nodeType = elem.nodeType;
-
-	if ( !nodeType ) {
-		// If no nodeType, this is expected to be an array
-		while ( (node = elem[i++]) ) {
-			// Do not traverse comment nodes
-			ret += getText( node );
-		}
-	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
-		// Use textContent for elements
-		// innerText usage removed for consistency of new lines (jQuery #11153)
-		if ( typeof elem.textContent === "string" ) {
-			return elem.textContent;
-		} else {
-			// Traverse its children
-			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-				ret += getText( elem );
-			}
-		}
-	} else if ( nodeType === 3 || nodeType === 4 ) {
-		return elem.nodeValue;
-	}
-	// Do not include comment or processing instruction nodes
-
-	return ret;
-};
-
-Expr = Sizzle.selectors = {
-
-	// Can be adjusted by the user
-	cacheLength: 50,
-
-	createPseudo: markFunction,
-
-	match: matchExpr,
-
-	attrHandle: {},
-
-	find: {},
-
-	relative: {
-		">": { dir: "parentNode", first: true },
-		" ": { dir: "parentNode" },
-		"+": { dir: "previousSibling", first: true },
-		"~": { dir: "previousSibling" }
-	},
-
-	preFilter: {
-		"ATTR": function( match ) {
-			match[1] = match[1].replace( runescape, funescape );
-
-			// Move the given value to match[3] whether quoted or unquoted
-			match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
-
-			if ( match[2] === "~=" ) {
-				match[3] = " " + match[3] + " ";
-			}
-
-			return match.slice( 0, 4 );
-		},
-
-		"CHILD": function( match ) {
-			/* matches from matchExpr["CHILD"]
-				1 type (only|nth|...)
-				2 what (child|of-type)
-				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
-				4 xn-component of xn+y argument ([+-]?\d*n|)
-				5 sign of xn-component
-				6 x of xn-component
-				7 sign of y-component
-				8 y of y-component
-			*/
-			match[1] = match[1].toLowerCase();
-
-			if ( match[1].slice( 0, 3 ) === "nth" ) {
-				// nth-* requires argument
-				if ( !match[3] ) {
-					Sizzle.error( match[0] );
-				}
-
-				// numeric x and y parameters for Expr.filter.CHILD
-				// remember that false/true cast respectively to 0/1
-				match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
-				match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
-
-			// other types prohibit arguments
-			} else if ( match[3] ) {
-				Sizzle.error( match[0] );
-			}
-
-			return match;
-		},
-
-		"PSEUDO": function( match ) {
-			var excess,
-				unquoted = !match[6] && match[2];
-
-			if ( matchExpr["CHILD"].test( match[0] ) ) {
-				return null;
-			}
-
-			// Accept quoted arguments as-is
-			if ( match[3] ) {
-				match[2] = match[4] || match[5] || "";
-
-			// Strip excess characters from unquoted arguments
-			} else if ( unquoted && rpseudo.test( unquoted ) &&
-				// Get excess from tokenize (recursively)
-				(excess = tokenize( unquoted, true )) &&
-				// advance to the next closing parenthesis
-				(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
-
-				// excess is a negative index
-				match[0] = match[0].slice( 0, excess );
-				match[2] = unquoted.slice( 0, excess );
-			}
-
-			// Return only captures needed by the pseudo filter method (type and argument)
-			return match.slice( 0, 3 );
-		}
-	},
-
-	filter: {
-
-		"TAG": function( nodeNameSelector ) {
-			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
-			return nodeNameSelector === "*" ?
-				function() { return true; } :
-				function( elem ) {
-					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
-				};
-		},
-
-		"CLASS": function( className ) {
-			var pattern = classCache[ className + " " ];
-
-			return pattern ||
-				(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
-				classCache( className, function( elem ) {
-					return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
-				});
-		},
-
-		"ATTR": function( name, operator, check ) {
-			return function( elem ) {
-				var result = Sizzle.attr( elem, name );
-
-				if ( result == null ) {
-					return operator === "!=";
-				}
-				if ( !operator ) {
-					return true;
-				}
-
-				result += "";
-
-				return operator === "=" ? result === check :
-					operator === "!=" ? result !== check :
-					operator === "^=" ? check && result.indexOf( check ) === 0 :
-					operator === "*=" ? check && result.indexOf( check ) > -1 :
-					operator === "$=" ? check && result.slice( -check.length ) === check :
-					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
-					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
-					false;
-			};
-		},
-
-		"CHILD": function( type, what, argument, first, last ) {
-			var simple = type.slice( 0, 3 ) !== "nth",
-				forward = type.slice( -4 ) !== "last",
-				ofType = what === "of-type";
-
-			return first === 1 && last === 0 ?
-
-				// Shortcut for :nth-*(n)
-				function( elem ) {
-					return !!elem.parentNode;
-				} :
-
-				function( elem, context, xml ) {
-					var cache, outerCache, node, diff, nodeIndex, start,
-						dir = simple !== forward ? "nextSibling" : "previousSibling",
-						parent = elem.parentNode,
-						name = ofType && elem.nodeName.toLowerCase(),
-						useCache = !xml && !ofType;
-
-					if ( parent ) {
-
-						// :(first|last|only)-(child|of-type)
-						if ( simple ) {
-							while ( dir ) {
-								node = elem;
-								while ( (node = node[ dir ]) ) {
-									if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
-										return false;
-									}
-								}
-								// Reverse direction for :only-* (if we haven't yet done so)
-								start = dir = type === "only" && !start && "nextSibling";
-							}
-							return true;
-						}
-
-						start = [ forward ? parent.firstChild : parent.lastChild ];
-
-						// non-xml :nth-child(...) stores cache data on `parent`
-						if ( forward && useCache ) {
-							// Seek `elem` from a previously-cached index
-							outerCache = parent[ expando ] || (parent[ expando ] = {});
-							cache = outerCache[ type ] || [];
-							nodeIndex = cache[0] === dirruns && cache[1];
-							diff = cache[0] === dirruns && cache[2];
-							node = nodeIndex && parent.childNodes[ nodeIndex ];
-
-							while ( (node = ++nodeIndex && node && node[ dir ] ||
-
-								// Fallback to seeking `elem` from the start
-								(diff = nodeIndex = 0) || start.pop()) ) {
-
-								// When found, cache indexes on `parent` and break
-								if ( node.nodeType === 1 && ++diff && node === elem ) {
-									outerCache[ type ] = [ dirruns, nodeIndex, diff ];
-									break;
-								}
-							}
-
-						// Use previously-cached element index if available
-						} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
-							diff = cache[1];
-
-						// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
-						} else {
-							// Use the same loop as above to seek `elem` from the start
-							while ( (node = ++nodeIndex && node && node[ dir ] ||
-								(diff = nodeIndex = 0) || start.pop()) ) {
-
-								if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
-									// Cache the index of each encountered element
-									if ( useCache ) {
-										(node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
-									}
-
-									if ( node === elem ) {
-										break;
-									}
-								}
-							}
-						}
-
-						// Incorporate the offset, then check against cycle size
-						diff -= last;
-						return diff === first || ( diff % first === 0 && diff / first >= 0 );
-					}
-				};
-		},
-
-		"PSEUDO": function( pseudo, argument ) {
-			// pseudo-class names are case-insensitive
-			// http://www.w3.org/TR/selectors/#pseudo-classes
-			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
-			// Remember that setFilters inherits from pseudos
-			var args,
-				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
-					Sizzle.error( "unsupported pseudo: " + pseudo );
-
-			// The user may use createPseudo to indicate that
-			// arguments are needed to create the filter function
-			// just as Sizzle does
-			if ( fn[ expando ] ) {
-				return fn( argument );
-			}
-
-			// But maintain support for old signatures
-			if ( fn.length > 1 ) {
-				args = [ pseudo, pseudo, "", argument ];
-				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
-					markFunction(function( seed, matches ) {
-						var idx,
-							matched = fn( seed, argument ),
-							i = matched.length;
-						while ( i-- ) {
-							idx = indexOf( seed, matched[i] );
-							seed[ idx ] = !( matches[ idx ] = matched[i] );
-						}
-					}) :
-					function( elem ) {
-						return fn( elem, 0, args );
-					};
-			}
-
-			return fn;
-		}
-	},
-
-	pseudos: {
-		// Potentially complex pseudos
-		"not": markFunction(function( selector ) {
-			// Trim the selector passed to compile
-			// to avoid treating leading and trailing
-			// spaces as combinators
-			var input = [],
-				results = [],
-				matcher = compile( selector.replace( rtrim, "$1" ) );
-
-			return matcher[ expando ] ?
-				markFunction(function( seed, matches, context, xml ) {
-					var elem,
-						unmatched = matcher( seed, null, xml, [] ),
-						i = seed.length;
-
-					// Match elements unmatched by `matcher`
-					while ( i-- ) {
-						if ( (elem = unmatched[i]) ) {
-							seed[i] = !(matches[i] = elem);
-						}
-					}
-				}) :
-				function( elem, context, xml ) {
-					input[0] = elem;
-					matcher( input, null, xml, results );
-					// Don't keep the element (issue #299)
-					input[0] = null;
-					return !results.pop();
-				};
-		}),
-
-		"has": markFunction(function( selector ) {
-			return function( elem ) {
-				return Sizzle( selector, elem ).length > 0;
-			};
-		}),
-
-		"contains": markFunction(function( text ) {
-			text = text.replace( runescape, funescape );
-			return function( elem ) {
-				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
-			};
-		}),
-
-		// "Whether an element is represented by a :lang() selector
-		// is based solely on the element's language value
-		// being equal to the identifier C,
-		// or beginning with the identifier C immediately followed by "-".
-		// The matching of C against the element's language value is performed case-insensitively.
-		// The identifier C does not have to be a valid language name."
-		// http://www.w3.org/TR/selectors/#lang-pseudo
-		"lang": markFunction( function( lang ) {
-			// lang value must be a valid identifier
-			if ( !ridentifier.test(lang || "") ) {
-				Sizzle.error( "unsupported lang: " + lang );
-			}
-			lang = lang.replace( runescape, funescape ).toLowerCase();
-			return function( elem ) {
-				var elemLang;
-				do {
-					if ( (elemLang = documentIsHTML ?
-						elem.lang :
-						elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
-
-						elemLang = elemLang.toLowerCase();
-						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
-					}
-				} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
-				return false;
-			};
-		}),
-
-		// Miscellaneous
-		"target": function( elem ) {
-			var hash = window.location && window.location.hash;
-			return hash && hash.slice( 1 ) === elem.id;
-		},
-
-		"root": function( elem ) {
-			return elem === docElem;
-		},
-
-		"focus": function( elem ) {
-			return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
-		},
-
-		// Boolean properties
-		"enabled": function( elem ) {
-			return elem.disabled === false;
-		},
-
-		"disabled": function( elem ) {
-			return elem.disabled === true;
-		},
-
-		"checked": function( elem ) {
-			// In CSS3, :checked should return both checked and selected elements
-			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-			var nodeName = elem.nodeName.toLowerCase();
-			return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
-		},
-
-		"selected": function( elem ) {
-			// Accessing this property makes selected-by-default
-			// options in Safari work properly
-			if ( elem.parentNode ) {
-				elem.parentNode.selectedIndex;
-			}
-
-			return elem.selected === true;
-		},
-
-		// Contents
-		"empty": function( elem ) {
-			// http://www.w3.org/TR/selectors/#empty-pseudo
-			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
-			//   but not by others (comment: 8; processing instruction: 7; etc.)
-			// nodeType < 6 works because attributes (2) do not appear as children
-			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-				if ( elem.nodeType < 6 ) {
-					return false;
-				}
-			}
-			return true;
-		},
-
-		"parent": function( elem ) {
-			return !Expr.pseudos["empty"]( elem );
-		},
-
-		// Element/input types
-		"header": function( elem ) {
-			return rheader.test( elem.nodeName );
-		},
-
-		"input": function( elem ) {
-			return rinputs.test( elem.nodeName );
-		},
-
-		"button": function( elem ) {
-			var name = elem.nodeName.toLowerCase();
-			return name === "input" && elem.type === "button" || name === "button";
-		},
-
-		"text": function( elem ) {
-			var attr;
-			return elem.nodeName.toLowerCase() === "input" &&
-				elem.type === "text" &&
-
-				// Support: IE<8
-				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
-				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
-		},
-
-		// Position-in-collection
-		"first": createPositionalPseudo(function() {
-			return [ 0 ];
-		}),
-
-		"last": createPositionalPseudo(function( matchIndexes, length ) {
-			return [ length - 1 ];
-		}),
-
-		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			return [ argument < 0 ? argument + length : argument ];
-		}),
-
-		"even": createPositionalPseudo(function( matchIndexes, length ) {
-			var i = 0;
-			for ( ; i < length; i += 2 ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"odd": createPositionalPseudo(function( matchIndexes, length ) {
-			var i = 1;
-			for ( ; i < length; i += 2 ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			var i = argument < 0 ? argument + length : argument;
-			for ( ; --i >= 0; ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			var i = argument < 0 ? argument + length : argument;
-			for ( ; ++i < length; ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		})
-	}
-};
-
-Expr.pseudos["nth"] = Expr.pseudos["eq"];
-
-// Add button/input type pseudos
-for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
-	Expr.pseudos[ i ] = createInputPseudo( i );
-}
-for ( i in { submit: true, reset: true } ) {
-	Expr.pseudos[ i ] = createButtonPseudo( i );
-}
-
-// Easy API for creating new setFilters
-function setFilters() {}
-setFilters.prototype = Expr.filters = Expr.pseudos;
-Expr.setFilters = new setFilters();
-
-tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
-	var matched, match, tokens, type,
-		soFar, groups, preFilters,
-		cached = tokenCache[ selector + " " ];
-
-	if ( cached ) {
-		return parseOnly ? 0 : cached.slice( 0 );
-	}
-
-	soFar = selector;
-	groups = [];
-	preFilters = Expr.preFilter;
-
-	while ( soFar ) {
-
-		// Comma and first run
-		if ( !matched || (match = rcomma.exec( soFar )) ) {
-			if ( match ) {
-				// Don't consume trailing commas as valid
-				soFar = soFar.slice( match[0].length ) || soFar;
-			}
-			groups.push( (tokens = []) );
-		}
-
-		matched = false;
-
-		// Combinators
-		if ( (match = rcombinators.exec( soFar )) ) {
-			matched = match.shift();
-			tokens.push({
-				value: matched,
-				// Cast descendant combinators to space
-				type: match[0].replace( rtrim, " " )
-			});
-			soFar = soFar.slice( matched.length );
-		}
-
-		// Filters
-		for ( type in Expr.filter ) {
-			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
-				(match = preFilters[ type ]( match ))) ) {
-				matched = match.shift();
-				tokens.push({
-					value: matched,
-					type: type,
-					matches: match
-				});
-				soFar = soFar.slice( matched.length );
-			}
-		}
-
-		if ( !matched ) {
-			break;
-		}
-	}
-
-	// Return the length of the invalid excess
-	// if we're just parsing
-	// Otherwise, throw an error or return tokens
-	return parseOnly ?
-		soFar.length :
-		soFar ?
-			Sizzle.error( selector ) :
-			// Cache the tokens
-			tokenCache( selector, groups ).slice( 0 );
-};
-
-function toSelector( tokens ) {
-	var i = 0,
-		len = tokens.length,
-		selector = "";
-	for ( ; i < len; i++ ) {
-		selector += tokens[i].value;
-	}
-	return selector;
-}
-
-function addCombinator( matcher, combinator, base ) {
-	var dir = combinator.dir,
-		checkNonElements = base && dir === "parentNode",
-		doneName = done++;
-
-	return combinator.first ?
-		// Check against closest ancestor/preceding element
-		function( elem, context, xml ) {
-			while ( (elem = elem[ dir ]) ) {
-				if ( elem.nodeType === 1 || checkNonElements ) {
-					return matcher( elem, context, xml );
-				}
-			}
-		} :
-
-		// Check against all ancestor/preceding elements
-		function( elem, context, xml ) {
-			var oldCache, outerCache,
-				newCache = [ dirruns, doneName ];
-
-			// We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
-			if ( xml ) {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						if ( matcher( elem, context, xml ) ) {
-							return true;
-						}
-					}
-				}
-			} else {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						outerCache = elem[ expando ] || (elem[ expando ] = {});
-						if ( (oldCache = outerCache[ dir ]) &&
-							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
-
-							// Assign to newCache so results back-propagate to previous elements
-							return (newCache[ 2 ] = oldCache[ 2 ]);
-						} else {
-							// Reuse newcache so results back-propagate to previous elements
-							outerCache[ dir ] = newCache;
-
-							// A match means we're done; a fail means we have to keep checking
-							if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
-								return true;
-							}
-						}
-					}
-				}
-			}
-		};
-}
-
-function elementMatcher( matchers ) {
-	return matchers.length > 1 ?
-		function( elem, context, xml ) {
-			var i = matchers.length;
-			while ( i-- ) {
-				if ( !matchers[i]( elem, context, xml ) ) {
-					return false;
-				}
-			}
-			return true;
-		} :
-		matchers[0];
-}
-
-function multipleContexts( selector, contexts, results ) {
-	var i = 0,
-		len = contexts.length;
-	for ( ; i < len; i++ ) {
-		Sizzle( selector, contexts[i], results );
-	}
-	return results;
-}
-
-function condense( unmatched, map, filter, context, xml ) {
-	var elem,
-		newUnmatched = [],
-		i = 0,
-		len = unmatched.length,
-		mapped = map != null;
-
-	for ( ; i < len; i++ ) {
-		if ( (elem = unmatched[i]) ) {
-			if ( !filter || filter( elem, context, xml ) ) {
-				newUnmatched.push( elem );
-				if ( mapped ) {
-					map.push( i );
-				}
-			}
-		}
-	}
-
-	return newUnmatched;
-}
-
-function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
-	if ( postFilter && !postFilter[ expando ] ) {
-		postFilter = setMatcher( postFilter );
-	}
-	if ( postFinder && !postFinder[ expando ] ) {
-		postFinder = setMatcher( postFinder, postSelector );
-	}
-	return markFunction(function( seed, results, context, xml ) {
-		var temp, i, elem,
-			preMap = [],
-			postMap = [],
-			preexisting = results.length,
-
-			// Get initial elements from seed or context
-			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
-
-			// Prefilter to get matcher input, preserving a map for seed-results synchronization
-			matcherIn = preFilter && ( seed || !selector ) ?
-				condense( elems, preMap, preFilter, context, xml ) :
-				elems,
-
-			matcherOut = matcher ?
-				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
-				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
-
-					// ...intermediate processing is necessary
-					[] :
-
-					// ...otherwise use results directly
-					results :
-				matcherIn;
-
-		// Find primary matches
-		if ( matcher ) {
-			matcher( matcherIn, matcherOut, context, xml );
-		}
-
-		// Apply postFilter
-		if ( postFilter ) {
-			temp = condense( matcherOut, postMap );
-			postFilter( temp, [], context, xml );
-
-			// Un-match failing elements by moving them back to matcherIn
-			i = temp.length;
-			while ( i-- ) {
-				if ( (elem = temp[i]) ) {
-					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
-				}
-			}
-		}
-
-		if ( seed ) {
-			if ( postFinder || preFilter ) {
-				if ( postFinder ) {
-					// Get the final matcherOut by condensing this intermediate into postFinder contexts
-					temp = [];
-					i = matcherOut.length;
-					while ( i-- ) {
-						if ( (elem = matcherOut[i]) ) {
-							// Restore matcherIn since elem is not yet a final match
-							temp.push( (matcherIn[i] = elem) );
-						}
-					}
-					postFinder( null, (matcherOut = []), temp, xml );
-				}
-
-				// Move matched elements from seed to results to keep them synchronized
-				i = matcherOut.length;
-				while ( i-- ) {
-					if ( (elem = matcherOut[i]) &&
-						(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
-
-						seed[temp] = !(results[temp] = elem);
-					}
-				}
-			}
-
-		// Add elements to results, through postFinder if defined
-		} else {
-			matcherOut = condense(
-				matcherOut === results ?
-					matcherOut.splice( preexisting, matcherOut.length ) :
-					matcherOut
-			);
-			if ( postFinder ) {
-				postFinder( null, results, matcherOut, xml );
-			} else {
-				push.apply( results, matcherOut );
-			}
-		}
-	});
-}
-
-function matcherFromTokens( tokens ) {
-	var checkContext, matcher, j,
-		len = tokens.length,
-		leadingRelative = Expr.relative[ tokens[0].type ],
-		implicitRelative = leadingRelative || Expr.relative[" "],
-		i = leadingRelative ? 1 : 0,
-
-		// The foundational matcher ensures that elements are reachable from top-level context(s)
-		matchContext = addCombinator( function( elem ) {
-			return elem === checkContext;
-		}, implicitRelative, true ),
-		matchAnyContext = addCombinator( function( elem ) {
-			return indexOf( checkContext, elem ) > -1;
-		}, implicitRelative, true ),
-		matchers = [ function( elem, context, xml ) {
-			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
-				(checkContext = context).nodeType ?
-					matchContext( elem, context, xml ) :
-					matchAnyContext( elem, context, xml ) );
-			// Avoid hanging onto element (issue #299)
-			checkContext = null;
-			return ret;
-		} ];
-
-	for ( ; i < len; i++ ) {
-		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
-			matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
-		} else {
-			matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
-
-			// Return special upon seeing a positional matcher
-			if ( matcher[ expando ] ) {
-				// Find the next relative operator (if any) for proper handling
-				j = ++i;
-				for ( ; j < len; j++ ) {
-					if ( Expr.relative[ tokens[j].type ] ) {
-						break;
-					}
-				}
-				return setMatcher(
-					i > 1 && elementMatcher( matchers ),
-					i > 1 && toSelector(
-						// If the preceding token was a descendant combinator, insert an implicit any-element `*`
-						tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
-					).replace( rtrim, "$1" ),
-					matcher,
-					i < j && matcherFromTokens( tokens.slice( i, j ) ),
-					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
-					j < len && toSelector( tokens )
-				);
-			}
-			matchers.push( matcher );
-		}
-	}
-
-	return elementMatcher( matchers );
-}
-
-function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
-	var bySet = setMatchers.length > 0,
-		byElement = elementMatchers.length > 0,
-		superMatcher = function( seed, context, xml, results, outermost ) {
-			var elem, j, matcher,
-				matchedCount = 0,
-				i = "0",
-				unmatched = seed && [],
-				setMatched = [],
-				contextBackup = outermostContext,
-				// We must always have either seed elements or outermost context
-				elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
-				// Use integer dirruns iff this is the outermost matcher
-				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
-				len = elems.length;
-
-			if ( outermost ) {
-				outermostContext = context !== document && context;
-			}
-
-			// Add elements passing elementMatchers directly to results
-			// Keep `i` a string if there are no elements so `matchedCount` will be "00" below
-			// Support: IE<9, Safari
-			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
-			for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
-				if ( byElement && elem ) {
-					j = 0;
-					while ( (matcher = elementMatchers[j++]) ) {
-						if ( matcher( elem, context, xml ) ) {
-							results.push( elem );
-							break;
-						}
-					}
-					if ( outermost ) {
-						dirruns = dirrunsUnique;
-					}
-				}
-
-				// Track unmatched elements for set filters
-				if ( bySet ) {
-					// They will have gone through all possible matchers
-					if ( (elem = !matcher && elem) ) {
-						matchedCount--;
-					}
-
-					// Lengthen the array for every element, matched or not
-					if ( seed ) {
-						unmatched.push( elem );
-					}
-				}
-			}
-
-			// Apply set filters to unmatched elements
-			matchedCount += i;
-			if ( bySet && i !== matchedCount ) {
-				j = 0;
-				while ( (matcher = setMatchers[j++]) ) {
-					matcher( unmatched, setMatched, context, xml );
-				}
-
-				if ( seed ) {
-					// Reintegrate element matches to eliminate the need for sorting
-					if ( matchedCount > 0 ) {
-						while ( i-- ) {
-							if ( !(unmatched[i] || setMatched[i]) ) {
-								setMatched[i] = pop.call( results );
-							}
-						}
-					}
-
-					// Discard index placeholder values to get only actual matches
-					setMatched = condense( setMatched );
-				}
-
-				// Add matches to results
-				push.apply( results, setMatched );
-
-				// Seedless set matches succeeding multiple successful matchers stipulate sorting
-				if ( outermost && !seed && setMatched.length > 0 &&
-					( matchedCount + setMatchers.length ) > 1 ) {
-
-					Sizzle.uniqueSort( results );
-				}
-			}
-
-			// Override manipulation of globals by nested matchers
-			if ( outermost ) {
-				dirruns = dirrunsUnique;
-				outermostContext = contextBackup;
-			}
-
-			return unmatched;
-		};
-
-	return bySet ?
-		markFunction( superMatcher ) :
-		superMatcher;
-}
-
-compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
-	var i,
-		setMatchers = [],
-		elementMatchers = [],
-		cached = compilerCache[ selector + " " ];
-
-	if ( !cached ) {
-		// Generate a function of recursive functions that can be used to check each element
-		if ( !match ) {
-			match = tokenize( selector );
-		}
-		i = match.length;
-		while ( i-- ) {
-			cached = matcherFromTokens( match[i] );
-			if ( cached[ expando ] ) {
-				setMatchers.push( cached );
-			} else {
-				elementMatchers.push( cached );
-			}
-		}
-
-		// Cache the compiled function
-		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
-
-		// Save selector and tokenization
-		cached.selector = selector;
-	}
-	return cached;
-};
-
-/**
- * A low-level selection function that works with Sizzle's compiled
- *  selector functions
- * @param {String|Function} selector A selector or a pre-compiled
- *  selector function built with Sizzle.compile
- * @param {Element} context
- * @param {Array} [results]
- * @param {Array} [seed] A set of elements to match against
- */
-select = Sizzle.select = function( selector, context, results, seed ) {
-	var i, tokens, token, type, find,
-		compiled = typeof selector === "function" && selector,
-		match = !seed && tokenize( (selector = compiled.selector || selector) );
-
-	results = results || [];
-
-	// Try to minimize operations if there is no seed and only one group
-	if ( match.length === 1 ) {
-
-		// Take a shortcut and set the context if the root selector is an ID
-		tokens = match[0] = match[0].slice( 0 );
-		if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
-				support.getById && context.nodeType === 9 && documentIsHTML &&
-				Expr.relative[ tokens[1].type ] ) {
-
-			context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
-			if ( !context ) {
-				return results;
-
-			// Precompiled matchers will still verify ancestry, so step up a level
-			} else if ( compiled ) {
-				context = context.parentNode;
-			}
-
-			selector = selector.slice( tokens.shift().value.length );
-		}
-
-		// Fetch a seed set for right-to-left matching
-		i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
-		while ( i-- ) {
-			token = tokens[i];
-
-			// Abort if we hit a combinator
-			if ( Expr.relative[ (type = token.type) ] ) {
-				break;
-			}
-			if ( (find = Expr.find[ type ]) ) {
-				// Search, expanding context for leading sibling combinators
-				if ( (seed = find(
-					token.matches[0].replace( runescape, funescape ),
-					rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
-				)) ) {
-
-					// If seed is empty or no tokens remain, we can return early
-					tokens.splice( i, 1 );
-					selector = seed.length && toSelector( tokens );
-					if ( !selector ) {
-						push.apply( results, seed );
-						return results;
-					}
-
-					break;
-				}
-			}
-		}
-	}
-
-	// Compile and execute a filtering function if one is not provided
-	// Provide `match` to avoid retokenization if we modified the selector above
-	( compiled || compile( selector, match ) )(
-		seed,
-		context,
-		!documentIsHTML,
-		results,
-		rsibling.test( selector ) && testContext( context.parentNode ) || context
-	);
-	return results;
-};
-
-// One-time assignments
-
-// Sort stability
-support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
-
-// Support: Chrome 14-35+
-// Always assume duplicates if they aren't passed to the comparison function
-support.detectDuplicates = !!hasDuplicate;
-
-// Initialize against the default document
-setDocument();
-
-// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
-// Detached nodes confoundingly follow *each other*
-support.sortDetached = assert(function( div1 ) {
-	// Should return 1, but returns 4 (following)
-	return div1.compareDocumentPosition( document.createElement("div") ) & 1;
-});
-
-// Support: IE<8
-// Prevent attribute/property "interpolation"
-// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
-if ( !assert(function( div ) {
-	div.innerHTML = "<a href='#'></a>";
-	return div.firstChild.getAttribute("href") === "#" ;
-}) ) {
-	addHandle( "type|href|height|width", function( elem, name, isXML ) {
-		if ( !isXML ) {
-			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
-		}
-	});
-}
-
-// Support: IE<9
-// Use defaultValue in place of getAttribute("value")
-if ( !support.attributes || !assert(function( div ) {
-	div.innerHTML = "<input/>";
-	div.firstChild.setAttribute( "value", "" );
-	return div.firstChild.getAttribute( "value" ) === "";
-}) ) {
-	addHandle( "value", function( elem, name, isXML ) {
-		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
-			return elem.defaultValue;
-		}
-	});
-}
-
-// Support: IE<9
-// Use getAttributeNode to fetch booleans when getAttribute lies
-if ( !assert(function( div ) {
-	return div.getAttribute("disabled") == null;
-}) ) {
-	addHandle( booleans, function( elem, name, isXML ) {
-		var val;
-		if ( !isXML ) {
-			return elem[ name ] === true ? name.toLowerCase() :
-					(val = elem.getAttributeNode( name )) && val.specified ?
-					val.value :
-				null;
-		}
-	});
-}
-
-return Sizzle;
-
-})( window );
-
-
-
-jQuery.find = Sizzle;
-jQuery.expr = Sizzle.selectors;
-jQuery.expr[":"] = jQuery.expr.pseudos;
-jQuery.unique = Sizzle.uniqueSort;
-jQuery.text = Sizzle.getText;
-jQuery.isXMLDoc = Sizzle.isXML;
-jQuery.contains = Sizzle.contains;
-
-
-
-var rneedsContext = jQuery.expr.match.needsContext;
-
-var rsingleTag = (/^<(\w+)\s*\/?>(?:<\/\1>|)$/);
-
-
-
-var risSimple = /^.[^:#\[\.,]*$/;
-
-// Implement the identical functionality for filter and not
-function winnow( elements, qualifier, not ) {
-	if ( jQuery.isFunction( qualifier ) ) {
-		return jQuery.grep( elements, function( elem, i ) {
-			/* jshint -W018 */
-			return !!qualifier.call( elem, i, elem ) !== not;
-		});
-
-	}
-
-	if ( qualifier.nodeType ) {
-		return jQuery.grep( elements, function( elem ) {
-			return ( elem === qualifier ) !== not;
-		});
-
-	}
-
-	if ( typeof qualifier === "string" ) {
-		if ( risSimple.test( qualifier ) ) {
-			return jQuery.filter( qualifier, elements, not );
-		}
-
-		qualifier = jQuery.filter( qualifier, elements );
-	}
-
-	return jQuery.grep( elements, function( elem ) {
-		return ( indexOf.call( qualifier, elem ) >= 0 ) !== not;
-	});
-}
-
-jQuery.filter = function( expr, elems, not ) {
-	var elem = elems[ 0 ];
-
-	if ( not ) {
-		expr = ":not(" + expr + ")";
-	}
-
-	return elems.length === 1 && elem.nodeType === 1 ?
-		jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
-		jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
-			return elem.nodeType === 1;
-		}));
-};
-
-jQuery.fn.extend({
-	find: function( selector ) {
-		var i,
-			len = this.length,
-			ret = [],
-			self = this;
-
-		if ( typeof selector !== "string" ) {
-			return this.pushStack( jQuery( selector ).filter(function() {
-				for ( i = 0; i < len; i++ ) {
-					if ( jQuery.contains( self[ i ], this ) ) {
-						return true;
-					}
-				}
-			}) );
-		}
-
-		for ( i = 0; i < len; i++ ) {
-			jQuery.find( selector, self[ i ], ret );
-		}
-
-		// Needed because $( selector, context ) becomes $( context ).find( selector )
-		ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
-		ret.selector = this.selector ? this.selector + " " + selector : selector;
-		return ret;
-	},
-	filter: function( selector ) {
-		return this.pushStack( winnow(this, selector || [], false) );
-	},
-	not: function( selector ) {
-		return this.pushStack( winnow(this, selector || [], true) );
-	},
-	is: function( selector ) {
-		return !!winnow(
-			this,
-
-			// If this is a positional/relative selector, check membership in the returned set
-			// so $("p:first").is("p:last") won't return true for a doc with two "p".
-			typeof selector === "string" && rneedsContext.test( selector ) ?
-				jQuery( selector ) :
-				selector || [],
-			false
-		).length;
-	}
-});
-
-
-// Initialize a jQuery object
-
-
-// A central reference to the root jQuery(document)
-var rootjQuery,
-
-	// A simple way to check for HTML strings
-	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
-	// Strict HTML recognition (#11290: must start with <)
-	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
-
-	init = jQuery.fn.init = function( selector, context ) {
-		var match, elem;
-
-		// HANDLE: $(""), $(null), $(undefined), $(false)
-		if ( !selector ) {
-			return this;
-		}
-
-		// Handle HTML strings
-		if ( typeof selector === "string" ) {
-			if ( selector[0] === "<" && selector[ selector.length - 1 ] === ">" && selector.length >= 3 ) {
-				// Assume that strings that start and end with <> are HTML and skip the regex check
-				match = [ null, selector, null ];
-
-			} else {
-				match = rquickExpr.exec( selector );
-			}
-
-			// Match html or make sure no context is specified for #id
-			if ( match && (match[1] || !context) ) {
-
-				// HANDLE: $(html) -> $(array)
-				if ( match[1] ) {
-					context = context instanceof jQuery ? context[0] : context;
-
-					// Option to run scripts is true for back-compat
-					// Intentionally let the error be thrown if parseHTML is not present
-					jQuery.merge( this, jQuery.parseHTML(
-						match[1],
-						context && context.nodeType ? context.ownerDocument || context : document,
-						true
-					) );
-
-					// HANDLE: $(html, props)
-					if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
-						for ( match in context ) {
-							// Properties of context are called as methods if possible
-							if ( jQuery.isFunction( this[ match ] ) ) {
-								this[ match ]( context[ match ] );
-
-							// ...and otherwise set as attributes
-							} else {
-								this.attr( match, context[ match ] );
-							}
-						}
-					}
-
-					return this;
-
-				// HANDLE: $(#id)
-				} else {
-					elem = document.getElementById( match[2] );
-
-					// Support: Blackberry 4.6
-					// gEBID returns nodes no longer in the document (#6963)
-					if ( elem && elem.parentNode ) {
-						// Inject the element directly into the jQuery object
-						this.length = 1;
-						this[0] = elem;
-					}
-
-					this.context = document;
-					this.selector = selector;
-					return this;
-				}
-
-			// HANDLE: $(expr, $(...))
-			} else if ( !context || context.jquery ) {
-				return ( context || rootjQuery ).find( selector );
-
-			// HANDLE: $(expr, context)
-			// (which is just equivalent to: $(context).find(expr)
-			} else {
-				return this.constructor( context ).find( selector );
-			}
-
-		// HANDLE: $(DOMElement)
-		} else if ( selector.nodeType ) {
-			this.context = this[0] = selector;
-			this.length = 1;
-			return this;
-
-		// HANDLE: $(function)
-		// Shortcut for document ready
-		} else if ( jQuery.isFunction( selector ) ) {
-			return typeof rootjQuery.ready !== "undefined" ?
-				rootjQuery.ready( selector ) :
-				// Execute immediately if ready is not present
-				selector( jQuery );
-		}
-
-		if ( selector.selector !== undefined ) {
-			this.selector = selector.selector;
-			this.context = selector.context;
-		}
-
-		return jQuery.makeArray( selector, this );
-	};
-
-// Give the init function the jQuery prototype for later instantiation
-init.prototype = jQuery.fn;
-
-// Initialize central reference
-rootjQuery = jQuery( document );
-
-
-var rparentsprev = /^(?:parents|prev(?:Until|All))/,
-	// Methods guaranteed to produce a unique set when starting from a unique set
-	guaranteedUnique = {
-		children: true,
-		contents: true,
-		next: true,
-		prev: true
-	};
-
-jQuery.extend({
-	dir: function( elem, dir, until ) {
-		var matched = [],
-			truncate = until !== undefined;
-
-		while ( (elem = elem[ dir ]) && elem.nodeType !== 9 ) {
-			if ( elem.nodeType === 1 ) {
-				if ( truncate && jQuery( elem ).is( until ) ) {
-					break;
-				}
-				matched.push( elem );
-			}
-		}
-		return matched;
-	},
-
-	sibling: function( n, elem ) {
-		var matched = [];
-
-		for ( ; n; n = n.nextSibling ) {
-			if ( n.nodeType === 1 && n !== elem ) {
-				matched.push( n );
-			}
-		}
-
-		return matched;
-	}
-});
-
-jQuery.fn.extend({
-	has: function( target ) {
-		var targets = jQuery( target, this ),
-			l = targets.length;
-
-		return this.filter(function() {
-			var i = 0;
-			for ( ; i < l; i++ ) {
-				if ( jQuery.contains( this, targets[i] ) ) {
-					return true;
-				}
-			}
-		});
-	},
-
-	closest: function( selectors, context ) {
-		var cur,
-			i = 0,
-			l = this.length,
-			matched = [],
-			pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
-				jQuery( selectors, context || this.context ) :
-				0;
-
-		for ( ; i < l; i++ ) {
-			for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {
-				// Always skip document fragments
-				if ( cur.nodeType < 11 && (pos ?
-					pos.index(cur) > -1 :
-
-					// Don't pass non-elements to Sizzle
-					cur.nodeType === 1 &&
-						jQuery.find.matchesSelector(cur, selectors)) ) {
-
-					matched.push( cur );
-					break;
-				}
-			}
-		}
-
-		return this.pushStack( matched.length > 1 ? jQuery.unique( matched ) : matched );
-	},
-
-	// Determine the position of an element within the set
-	index: function( elem ) {
-
-		// No argument, return index in parent
-		if ( !elem ) {
-			return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
-		}
-
-		// Index in selector
-		if ( typeof elem === "string" ) {
-			return indexOf.call( jQuery( elem ), this[ 0 ] );
-		}
-
-		// Locate the position of the desired element
-		return indexOf.call( this,
-
-			// If it receives a jQuery object, the first element is used
-			elem.jquery ? elem[ 0 ] : elem
-		);
-	},
-
-	add: function( selector, context ) {
-		return this.pushStack(
-			jQuery.unique(
-				jQuery.merge( this.get(), jQuery( selector, context ) )
-			)
-		);
-	},
-
-	addBack: function( selector ) {
-		return this.add( selector == null ?
-			this.prevObject : this.prevObject.filter(selector)
-		);
-	}
-});
-
-function sibling( cur, dir ) {
-	while ( (cur = cur[dir]) && cur.nodeType !== 1 ) {}
-	return cur;
-}
-
-jQuery.each({
-	parent: function( elem ) {
-		var parent = elem.parentNode;
-		return parent && parent.nodeType !== 11 ? parent : null;
-	},
-	parents: function( elem ) {
-		return jQuery.dir( elem, "parentNode" );
-	},
-	parentsUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "parentNode", until );
-	},
-	next: function( elem ) {
-		return sibling( elem, "nextSibling" );
-	},
-	prev: function( elem ) {
-		return sibling( elem, "previousSibling" );
-	},
-	nextAll: function( elem ) {
-		return jQuery.dir( elem, "nextSibling" );
-	},
-	prevAll: function( elem ) {
-		return jQuery.dir( elem, "previousSibling" );
-	},
-	nextUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "nextSibling", until );
-	},
-	prevUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "previousSibling", until );
-	},
-	siblings: function( elem ) {
-		return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
-	},
-	children: function( elem ) {
-		return jQuery.sibling( elem.firstChild );
-	},
-	contents: function( elem ) {
-		return elem.contentDocument || jQuery.merge( [], elem.childNodes );
-	}
-}, function( name, fn ) {
-	jQuery.fn[ name ] = function( until, selector ) {
-		var matched = jQuery.map( this, fn, until );
-
-		if ( name.slice( -5 ) !== "Until" ) {
-			selector = until;
-		}
-
-		if ( selector && typeof selector === "string" ) {
-			matched = jQuery.filter( selector, matched );
-		}
-
-		if ( this.length > 1 ) {
-			// Remove duplicates
-			if ( !guaranteedUnique[ name ] ) {
-				jQuery.unique( matched );
-			}
-
-			// Reverse order for parents* and prev-derivatives
-			if ( rparentsprev.test( name ) ) {
-				matched.reverse();
-			}
-		}
-
-		return this.pushStack( matched );
-	};
-});
-var rnotwhite = (/\S+/g);
-
-
-
-// String to Object options format cache
-var optionsCache = {};
-
-// Convert String-formatted options into Object-formatted ones and store in cache
-function createOptions( options ) {
-	var object = optionsCache[ options ] = {};
-	jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) {
-		object[ flag ] = true;
-	});
-	return object;
-}
-
-/*
- * Create a callback list using the following parameters:
- *
- *	options: an optional list of space-separated options that will change how
- *			the callback list behaves or a more traditional option object
- *
- * By default a callback list will act like an event callback list and can be
- * "fired" multiple times.
- *
- * Possible options:
- *
- *	once:			will ensure the callback list can only be fired once (like a Deferred)
- *
- *	memory:			will keep track of previous values and will call any callback added
- *					after the list has been fired right away with the latest "memorized"
- *					values (like a Deferred)
- *
- *	unique:			will ensure a callback can only be added once (no duplicate in the list)
- *
- *	stopOnFalse:	interrupt callings when a callback returns false
- *
- */
-jQuery.Callbacks = function( options ) {
-
-	// Convert options from String-formatted to Object-formatted if needed
-	// (we check in cache first)
-	options = typeof options === "string" ?
-		( optionsCache[ options ] || createOptions( options ) ) :
-		jQuery.extend( {}, options );
-
-	var // Last fire value (for non-forgettable lists)
-		memory,
-		// Flag to know if list was already fired
-		fired,
-		// Flag to know if list is currently firing
-		firing,
-		// First callback to fire (used internally by add and fireWith)
-		firingStart,
-		// End of the loop when firing
-		firingLength,
-		// Index of currently firing callback (modified by remove if needed)
-		firingIndex,
-		// Actual callback list
-		list = [],
-		// Stack of fire calls for repeatable lists
-		stack = !options.once && [],
-		// Fire callbacks
-		fire = function( data ) {
-			memory = options.memory && data;
-			fired = true;
-			firingIndex = firingStart || 0;
-			firingStart = 0;
-			firingLength = list.length;
-			firing = true;
-			for ( ; list && firingIndex < firingLength; firingIndex++ ) {
-				if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
-					memory = false; // To prevent further calls using add
-					break;
-				}
-			}
-			firing = false;
-			if ( list ) {
-				if ( stack ) {
-					if ( stack.length ) {
-						fire( stack.shift() );
-					}
-				} else if ( memory ) {
-					list = [];
-				} else {
-					self.disable();
-				}
-			}
-		},
-		// Actual Callbacks object
-		self = {
-			// Add a callback or a collection of callbacks to the list
-			add: function() {
-				if ( list ) {
-					// First, we save the current length
-					var start = list.length;
-					(function add( args ) {
-						jQuery.each( args, function( _, arg ) {
-							var type = jQuery.type( arg );
-							if ( type === "function" ) {
-								if ( !options.unique || !self.has( arg ) ) {
-									list.push( arg );
-								}
-							} else if ( arg && arg.length && type !== "string" ) {
-								// Inspect recursively
-								add( arg );
-							}
-						});
-					})( arguments );
-					// Do we need to add the callbacks to the
-					// current firing batch?
-					if ( firing ) {
-						firingLength = list.length;
-					// With memory, if we're not firing then
-					// we should call right away
-					} else if ( memory ) {
-						firingStart = start;
-						fire( memory );
-					}
-				}
-				return this;
-			},
-			// Remove a callback from the list
-			remove: function() {
-				if ( list ) {
-					jQuery.each( arguments, function( _, arg ) {
-						var index;
-						while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
-							list.splice( index, 1 );
-							// Handle firing indexes
-							if ( firing ) {
-								if ( index <= firingLength ) {
-									firingLength--;
-								}
-								if ( index <= firingIndex ) {
-									firingIndex--;
-								}
-							}
-						}
-					});
-				}
-				return this;
-			},
-			// Check if a given callback is in the list.
-			// If no argument is given, return whether or not list has callbacks attached.
-			has: function( fn ) {
-				return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
-			},
-			// Remove all callbacks from the list
-			empty: function() {
-				list = [];
-				firingLength = 0;
-				return this;
-			},
-			// Have the list do nothing anymore
-			disable: function() {
-				list = stack = memory = undefined;
-				return this;
-			},
-			// Is it disabled?
-			disabled: function() {
-				return !list;
-			},
-			// Lock the list in its current state
-			lock: function() {
-				stack = undefined;
-				if ( !memory ) {
-					self.disable();
-				}
-				return this;
-			},
-			// Is it locked?
-			locked: function() {
-				return !stack;
-			},
-			// Call all callbacks with the given context and arguments
-			fireWith: function( context, args ) {
-				if ( list && ( !fired || stack ) ) {
-					args = args || [];
-					args = [ context, args.slice ? args.slice() : args ];
-					if ( firing ) {
-						stack.push( args );
-					} else {
-						fire( args );
-					}
-				}
-				return this;
-			},
-			// Call all the callbacks with the given arguments
-			fire: function() {
-				self.fireWith( this, arguments );
-				return this;
-			},
-			// To know if the callbacks have already been called at least once
-			fired: function() {
-				return !!fired;
-			}
-		};
-
-	return self;
-};
-
-
-jQuery.extend({
-
-	Deferred: function( func ) {
-		var tuples = [
-				// action, add listener, listener list, final state
-				[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
-				[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
-				[ "notify", "progress", jQuery.Callbacks("memory") ]
-			],
-			state = "pending",
-			promise = {
-				state: function() {
-					return state;
-				},
-				always: function() {
-					deferred.done( arguments ).fail( arguments );
-					return this;
-				},
-				then: function( /* fnDone, fnFail, fnProgress */ ) {
-					var fns = arguments;
-					return jQuery.Deferred(function( newDefer ) {
-						jQuery.each( tuples, function( i, tuple ) {
-							var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
-							// deferred[ done | fail | progress ] for forwarding actions to newDefer
-							deferred[ tuple[1] ](function() {
-								var returned = fn && fn.apply( this, arguments );
-								if ( returned && jQuery.isFunction( returned.promise ) ) {
-									returned.promise()
-										.done( newDefer.resolve )
-										.fail( newDefer.reject )
-										.progress( newDefer.notify );
-								} else {
-									newDefer[ tuple[ 0 ] + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
-								}
-							});
-						});
-						fns = null;
-					}).promise();
-				},
-				// Get a promise for this deferred
-				// If obj is provided, the promise aspect is added to the object
-				promise: function( obj ) {
-					return obj != null ? jQuery.extend( obj, promise ) : promise;
-				}
-			},
-			deferred = {};
-
-		// Keep pipe for back-compat
-		promise.pipe = promise.then;
-
-		// Add list-specific methods
-		jQuery.each( tuples, function( i, tuple ) {
-			var list = tuple[ 2 ],
-				stateString = tuple[ 3 ];
-
-			// promise[ done | fail | progress ] = list.add
-			promise[ tuple[1] ] = list.add;
-
-			// Handle state
-			if ( stateString ) {
-				list.add(function() {
-					// state = [ resolved | rejected ]
-					state = stateString;
-
-				// [ reject_list | resolve_list ].disable; progress_list.lock
-				}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
-			}
-
-			// deferred[ resolve | reject | notify ]
-			deferred[ tuple[0] ] = function() {
-				deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
-				return this;
-			};
-			deferred[ tuple[0] + "With" ] = list.fireWith;
-		});
-
-		// Make the deferred a promise
-		promise.promise( deferred );
-
-		// Call given func if any
-		if ( func ) {
-			func.call( deferred, deferred );
-		}
-
-		// All done!
-		return deferred;
-	},
-
-	// Deferred helper
-	when: function( subordinate /* , ..., subordinateN */ ) {
-		var i = 0,
-			resolveValues = slice.call( arguments ),
-			length = resolveValues.length,
-
-			// the count of uncompleted subordinates
-			remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
-
-			// the master Deferred. If resolveValues consist of only a single Deferred, just use that.
-			deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
-
-			// Update function for both resolve and progress values
-			updateFunc = function( i, contexts, values ) {
-				return function( value ) {
-					contexts[ i ] = this;
-					values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
-					if ( values === progressValues ) {
-						deferred.notifyWith( contexts, values );
-					} else if ( !( --remaining ) ) {
-						deferred.resolveWith( contexts, values );
-					}
-				};
-			},
-
-			progressValues, progressContexts, resolveContexts;
-
-		// Add listeners to Deferred subordinates; treat others as resolved
-		if ( length > 1 ) {
-			progressValues = new Array( length );
-			progressContexts = new Array( length );
-			resolveContexts = new Array( length );
-			for ( ; i < length; i++ ) {
-				if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
-					resolveValues[ i ].promise()
-						.done( updateFunc( i, resolveContexts, resolveValues ) )
-						.fail( deferred.reject )
-						.progress( updateFunc( i, progressContexts, progressValues ) );
-				} else {
-					--remaining;
-				}
-			}
-		}
-
-		// If we're not waiting on anything, resolve the master
-		if ( !remaining ) {
-			deferred.resolveWith( resolveContexts, resolveValues );
-		}
-
-		return deferred.promise();
-	}
-});
-
-
-// The deferred used on DOM ready
-var readyList;
-
-jQuery.fn.ready = function( fn ) {
-	// Add the callback
-	jQuery.ready.promise().done( fn );
-
-	return this;
-};
-
-jQuery.extend({
-	// Is the DOM ready to be used? Set to true once it occurs.
-	isReady: false,
-
-	// A counter to track how many items to wait for before
-	// the ready event fires. See #6781
-	readyWait: 1,
-
-	// Hold (or release) the ready event
-	holdReady: function( hold ) {
-		if ( hold ) {
-			jQuery.readyWait++;
-		} else {
-			jQuery.ready( true );
-		}
-	},
-
-	// Handle when the DOM is ready
-	ready: function( wait ) {
-
-		// Abort if there are pending holds or we're already ready
-		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
-			return;
-		}
-
-		// Remember that the DOM is ready
-		jQuery.isReady = true;
-
-		// If a normal DOM Ready event fired, decrement, and wait if need be
-		if ( wait !== true && --jQuery.readyWait > 0 ) {
-			return;
-		}
-
-		// If there are functions bound, to execute
-		readyList.resolveWith( document, [ jQuery ] );
-
-		// Trigger any bound ready events
-		if ( jQuery.fn.triggerHandler ) {
-			jQuery( document ).triggerHandler( "ready" );
-			jQuery( document ).off( "ready" );
-		}
-	}
-});
-
-/**
- * The ready event handler and self cleanup method
- */
-function completed() {
-	document.removeEventListener( "DOMContentLoaded", completed, false );
-	window.removeEventListener( "load", completed, false );
-	jQuery.ready();
-}
-
-jQuery.ready.promise = function( obj ) {
-	if ( !readyList ) {
-
-		readyList = jQuery.Deferred();
-
-		// Catch cases where $(document).ready() is called after the browser event has already occurred.
-		// We once tried to use readyState "interactive" here, but it caused issues like the one
-		// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
-		if ( document.readyState === "complete" ) {
-			// Handle it asynchronously to allow scripts the opportunity to delay ready
-			setTimeout( jQuery.ready );
-
-		} else {
-
-			// Use the handy event callback
-			document.addEventListener( "DOMContentLoaded", completed, false );
-
-			// A fallback to window.onload, that will always work
-			window.addEventListener( "load", completed, false );
-		}
-	}
-	return readyList.promise( obj );
-};
-
-// Kick off the DOM ready check even if the user does not
-jQuery.ready.promise();
-
-
-
-
-// Multifunctional method to get and set values of a collection
-// The value/s can optionally be executed if it's a function
-var access = jQuery.access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
-	var i = 0,
-		len = elems.length,
-		bulk = key == null;
-
-	// Sets many values
-	if ( jQuery.type( key ) === "object" ) {
-		chainable = true;
-		for ( i in key ) {
-			jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
-		}
-
-	// Sets one value
-	} else if ( value !== undefined ) {
-		chainable = true;
-
-		if ( !jQuery.isFunction( value ) ) {
-			raw = true;
-		}
-
-		if ( bulk ) {
-			// Bulk operations run against the entire set
-			if ( raw ) {
-				fn.call( elems, value );
-				fn = null;
-
-			// ...except when executing function values
-			} else {
-				bulk = fn;
-				fn = function( elem, key, value ) {
-					return bulk.call( jQuery( elem ), value );
-				};
-			}
-		}
-
-		if ( fn ) {
-			for ( ; i < len; i++ ) {
-				fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
-			}
-		}
-	}
-
-	return chainable ?
-		elems :
-
-		// Gets
-		bulk ?
-			fn.call( elems ) :
-			len ? fn( elems[0], key ) : emptyGet;
-};
-
-
-/**
- * Determines whether an object can have data
- */
-jQuery.acceptData = function( owner ) {
-	// Accepts only:
-	//  - Node
-	//    - Node.ELEMENT_NODE
-	//    - Node.DOCUMENT_NODE
-	//  - Object
-	//    - Any
-	/* jshint -W018 */
-	return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
-};
-
-
-function Data() {
-	// Support: Android<4,
-	// Old WebKit does not have Object.preventExtensions/freeze method,
-	// return new empty object instead with no [[set]] accessor
-	Object.defineProperty( this.cache = {}, 0, {
-		get: function() {
-			return {};
-		}
-	});
-
-	this.expando = jQuery.expando + Data.uid++;
-}
-
-Data.uid = 1;
-Data.accepts = jQuery.acceptData;
-
-Data.prototype = {
-	key: function( owner ) {
-		// We can accept data for non-element nodes in modern browsers,
-		// but we should not, see #8335.
-		// Always return the key for a frozen object.
-		if ( !Data.accepts( owner ) ) {
-			return 0;
-		}
-
-		var descriptor = {},
-			// Check if the owner object already has a cache key
-			unlock = owner[ this.expando ];
-
-		// If not, create one
-		if ( !unlock ) {
-			unlock = Data.uid++;
-
-			// Secure it in a non-enumerable, non-writable property
-			try {
-				descriptor[ this.expando ] = { value: unlock };
-				Object.defineProperties( owner, descriptor );
-
-			// Support: Android<4
-			// Fallback to a less secure definition
-			} catch ( e ) {
-				descriptor[ this.expando ] = unlock;
-				jQuery.extend( owner, descriptor );
-			}
-		}
-
-		// Ensure the cache object
-		if ( !this.cache[ unlock ] ) {
-			this.cache[ unlock ] = {};
-		}
-
-		return unlock;
-	},
-	set: function( owner, data, value ) {
-		var prop,
-			// There may be an unlock assigned to this node,
-			// if there is no entry for this "owner", create one inline
-			// and set the unlock as though an owner entry had always existed
-			unlock = this.key( owner ),
-			cache = this.cache[ unlock ];
-
-		// Handle: [ owner, key, value ] args
-		if ( typeof data === "string" ) {
-			cache[ data ] = value;
-
-		// Handle: [ owner, { properties } ] args
-		} else {
-			// Fresh assignments by object are shallow copied
-			if ( jQuery.isEmptyObject( cache ) ) {
-				jQuery.extend( this.cache[ unlock ], data );
-			// Otherwise, copy the properties one-by-one to the cache object
-			} else {
-				for ( prop in data ) {
-					cache[ prop ] = data[ prop ];
-				}
-			}
-		}
-		return cache;
-	},
-	get: function( owner, key ) {
-		// Either a valid cache is found, or will be created.
-		// New caches will be created and the unlock returned,
-		// allowing direct access to the newly created
-		// empty data object. A valid owner object must be provided.
-		var cache = this.cache[ this.key( owner ) ];
-
-		return key === undefined ?
-			cache : cache[ key ];
-	},
-	access: function( owner, key, value ) {
-		var stored;
-		// In cases where either:
-		//
-		//   1. No key was specified
-		//   2. A string key was specified, but no value provided
-		//
-		// Take the "read" path and allow the get method to determine
-		// which value to return, respectively either:
-		//
-		//   1. The entire cache object
-		//   2. The data stored at the key
-		//
-		if ( key === undefined ||
-				((key && typeof key === "string") && value === undefined) ) {
-
-			stored = this.get( owner, key );
-
-			return stored !== undefined ?
-				stored : this.get( owner, jQuery.camelCase(key) );
-		}
-
-		// [*]When the key is not a string, or both a key and value
-		// are specified, set or extend (existing objects) with either:
-		//
-		//   1. An object of properties
-		//   2. A key and value
-		//
-		this.set( owner, key, value );
-
-		// Since the "set" path can have two possible entry points
-		// return the expected data based on which path was taken[*]
-		return value !== undefined ? value : key;
-	},
-	remove: function( owner, key ) {
-		var i, name, camel,
-			unlock = this.key( owner ),
-			cache = this.cache[ unlock ];
-
-		if ( key === undefined ) {
-			this.cache[ unlock ] = {};
-
-		} else {
-			// Support array or space separated string of keys
-			if ( jQuery.isArray( key ) ) {
-				// If "name" is an array of keys...
-				// When data is initially created, via ("key", "val") signature,
-				// keys will be converted to camelCase.
-				// Since there is no way to tell _how_ a key was added, remove
-				// both plain key and camelCase key. #12786
-				// This will only penalize the array argument path.
-				name = key.concat( key.map( jQuery.camelCase ) );
-			} else {
-				camel = jQuery.camelCase( key );
-				// Try the string as a key before any manipulation
-				if ( key in cache ) {
-					name = [ key, camel ];
-				} else {
-					// If a key with the spaces exists, use it.
-					// Otherwise, create an array by matching non-whitespace
-					name = camel;
-					name = name in cache ?
-						[ name ] : ( name.match( rnotwhite ) || [] );
-				}
-			}
-
-			i = name.length;
-			while ( i-- ) {
-				delete cache[ name[ i ] ];
-			}
-		}
-	},
-	hasData: function( owner ) {
-		return !jQuery.isEmptyObject(
-			this.cache[ owner[ this.expando ] ] || {}
-		);
-	},
-	discard: function( owner ) {
-		if ( owner[ this.expando ] ) {
-			delete this.cache[ owner[ this.expando ] ];
-		}
-	}
-};
-var data_priv = new Data();
-
-var data_user = new Data();
-
-
-
-//	Implementation Summary
-//
-//	1. Enforce API surface and semantic compatibility with 1.9.x branch
-//	2. Improve the module's maintainability by reducing the storage
-//		paths to a single mechanism.
-//	3. Use the same single mechanism to support "private" and "user" data.
-//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
-//	5. Avoid exposing implementation details on user objects (eg. expando properties)
-//	6. Provide a clear path for implementation upgrade to WeakMap in 2014
-
-var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
-	rmultiDash = /([A-Z])/g;
-
-function dataAttr( elem, key, data ) {
-	var name;
-
-	// If nothing was found internally, try to fetch any
-	// data from the HTML5 data-* attribute
-	if ( data === undefined && elem.nodeType === 1 ) {
-		name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
-		data = elem.getAttribute( name );
-
-		if ( typeof data === "string" ) {
-			try {
-				data = data === "true" ? true :
-					data === "false" ? false :
-					data === "null" ? null :
-					// Only convert to a number if it doesn't change the string
-					+data + "" === data ? +data :
-					rbrace.test( data ) ? jQuery.parseJSON( data ) :
-					data;
-			} catch( e ) {}
-
-			// Make sure we set the data so it isn't changed later
-			data_user.set( elem, key, data );
-		} else {
-			data = undefined;
-		}
-	}
-	return data;
-}
-
-jQuery.extend({
-	hasData: function( elem ) {
-		return data_user.hasData( elem ) || data_priv.hasData( elem );
-	},
-
-	data: function( elem, name, data ) {
-		return data_user.access( elem, name, data );
-	},
-
-	removeData: function( elem, name ) {
-		data_user.remove( elem, name );
-	},
-
-	// TODO: Now that all calls to _data and _removeData have been replaced
-	// with direct calls to data_priv methods, these can be deprecated.
-	_data: function( elem, name, data ) {
-		return data_priv.access( elem, name, data );
-	},
-
-	_removeData: function( elem, name ) {
-		data_priv.remove( elem, name );
-	}
-});
-
-jQuery.fn.extend({
-	data: function( key, value ) {
-		var i, name, data,
-			elem = this[ 0 ],
-			attrs = elem && elem.attributes;
-
-		// Gets all values
-		if ( key === undefined ) {
-			if ( this.length ) {
-				data = data_user.get( elem );
-
-				if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {
-					i = attrs.length;
-					while ( i-- ) {
-
-						// Support: IE11+
-						// The attrs elements can be null (#14894)
-						if ( attrs[ i ] ) {
-							name = attrs[ i ].name;
-							if ( name.indexOf( "data-" ) === 0 ) {
-								name = jQuery.camelCase( name.slice(5) );
-								dataAttr( elem, name, data[ name ] );
-							}
-						}
-					}
-					data_priv.set( elem, "hasDataAttrs", true );
-				}
-			}
-
-			return data;
-		}
-
-		// Sets multiple values
-		if ( typeof key === "object" ) {
-			return this.each(function() {
-				data_user.set( this, key );
-			});
-		}
-
-		return access( this, function( value ) {
-			var data,
-				camelKey = jQuery.camelCase( key );
-
-			// The calling jQuery object (element matches) is not empty
-			// (and therefore has an element appears at this[ 0 ]) and the
-			// `value` parameter was not undefined. An empty jQuery object
-			// will result in `undefined` for elem = this[ 0 ] which will
-			// throw an exception if an attempt to read a data cache is made.
-			if ( elem && value === undefined ) {
-				// Attempt to get data from the cache
-				// with the key as-is
-				data = data_user.get( elem, key );
-				if ( data !== undefined ) {
-					return data;
-				}
-
-				// Attempt to get data from the cache
-				// with the key camelized
-				data = data_user.get( elem, camelKey );
-				if ( data !== undefined ) {
-					return data;
-				}
-
-				// Attempt to "discover" the data in
-				// HTML5 custom data-* attrs
-				data = dataAttr( elem, camelKey, undefined );
-				if ( data !== undefined ) {
-					return data;
-				}
-
-				// We tried really hard, but the data doesn't exist.
-				return;
-			}
-
-			// Set the data...
-			this.each(function() {
-				// First, attempt to store a copy or reference of any
-				// data that might've been store with a camelCased key.
-				var data = data_user.get( this, camelKey );
-
-				// For HTML5 data-* attribute interop, we have to
-				// store property names with dashes in a camelCase form.
-				// This might not apply to all properties...*
-				data_user.set( this, camelKey, value );
-
-				// *... In the case of properties that might _actually_
-				// have dashes, we need to also store a copy of that
-				// unchanged property.
-				if ( key.indexOf("-") !== -1 && data !== undefined ) {
-					data_user.set( this, key, value );
-				}
-			});
-		}, null, value, arguments.length > 1, null, true );
-	},
-
-	removeData: function( key ) {
-		return this.each(function() {
-			data_user.remove( this, key );
-		});
-	}
-});
-
-
-jQuery.extend({
-	queue: function( elem, type, data ) {
-		var queue;
-
-		if ( elem ) {
-			type = ( type || "fx" ) + "queue";
-			queue = data_priv.get( elem, type );
-
-			// Speed up dequeue by getting out quickly if this is just a lookup
-			if ( data ) {
-				if ( !queue || jQuery.isArray( data ) ) {
-					queue = data_priv.access( elem, type, jQuery.makeArray(data) );
-				} else {
-					queue.push( data );
-				}
-			}
-			return queue || [];
-		}
-	},
-
-	dequeue: function( elem, type ) {
-		type = type || "fx";
-
-		var queue = jQuery.queue( elem, type ),
-			startLength = queue.length,
-			fn = queue.shift(),
-			hooks = jQuery._queueHooks( elem, type ),
-			next = function() {
-				jQuery.dequeue( elem, type );
-			};
-
-		// If the fx queue is dequeued, always remove the progress sentinel
-		if ( fn === "inprogress" ) {
-			fn = queue.shift();
-			startLength--;
-		}
-
-		if ( fn ) {
-
-			// Add a progress sentinel to prevent the fx queue from being
-			// automatically dequeued
-			if ( type === "fx" ) {
-				queue.unshift( "inprogress" );
-			}
-
-			// Clear up the last queue stop function
-			delete hooks.stop;
-			fn.call( elem, next, hooks );
-		}
-
-		if ( !startLength && hooks ) {
-			hooks.empty.fire();
-		}
-	},
-
-	// Not public - generate a queueHooks object, or return the current one
-	_queueHooks: function( elem, type ) {
-		var key = type + "queueHooks";
-		return data_priv.get( elem, key ) || data_priv.access( elem, key, {
-			empty: jQuery.Callbacks("once memory").add(function() {
-				data_priv.remove( elem, [ type + "queue", key ] );
-			})
-		});
-	}
-});
-
-jQuery.fn.extend({
-	queue: function( type, data ) {
-		var setter = 2;
-
-		if ( typeof type !== "string" ) {
-			data = type;
-			type = "fx";
-			setter--;
-		}
-
-		if ( arguments.length < setter ) {
-			return jQuery.queue( this[0], type );
-		}
-
-		return data === undefined ?
-			this :
-			this.each(function() {
-				var queue = jQuery.queue( this, type, data );
-
-				// Ensure a hooks for this queue
-				jQuery._queueHooks( this, type );
-
-				if ( type === "fx" && queue[0] !== "inprogress" ) {
-					jQuery.dequeue( this, type );
-				}
-			});
-	},
-	dequeue: function( type ) {
-		return this.each(function() {
-			jQuery.dequeue( this, type );
-		});
-	},
-	clearQueue: function( type ) {
-		return this.queue( type || "fx", [] );
-	},
-	// Get a promise resolved when queues of a certain type
-	// are emptied (fx is the type by default)
-	promise: function( type, obj ) {
-		var tmp,
-			count = 1,
-			defer = jQuery.Deferred(),
-			elements = this,
-			i = this.length,
-			resolve = function() {
-				if ( !( --count ) ) {
-					defer.resolveWith( elements, [ elements ] );
-				}
-			};
-
-		if ( typeof type !== "string" ) {
-			obj = type;
-			type = undefined;
-		}
-		type = type || "fx";
-
-		while ( i-- ) {
-			tmp = data_priv.get( elements[ i ], type + "queueHooks" );
-			if ( tmp && tmp.empty ) {
-				count++;
-				tmp.empty.add( resolve );
-			}
-		}
-		resolve();
-		return defer.promise( obj );
-	}
-});
-var pnum = (/[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/).source;
-
-var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
-
-var isHidden = function( elem, el ) {
-		// isHidden might be called from jQuery#filter function;
-		// in that case, element will be second argument
-		elem = el || elem;
-		return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
-	};
-
-var rcheckableType = (/^(?:checkbox|radio)$/i);
-
-
-
-(function() {
-	var fragment = document.createDocumentFragment(),
-		div = fragment.appendChild( document.createElement( "div" ) ),
-		input = document.createElement( "input" );
-
-	// Support: Safari<=5.1
-	// Check state lost if the name is set (#11217)
-	// Support: Windows Web Apps (WWA)
-	// `name` and `type` must use .setAttribute for WWA (#14901)
-	input.setAttribute( "type", "radio" );
-	input.setAttribute( "checked", "checked" );
-	input.setAttribute( "name", "t" );
-
-	div.appendChild( input );
-
-	// Support: Safari<=5.1, Android<4.2
-	// Older WebKit doesn't clone checked state correctly in fragments
-	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
-
-	// Support: IE<=11+
-	// Make sure textarea (and checkbox) defaultValue is properly cloned
-	div.innerHTML = "<textarea>x</textarea>";
-	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
-})();
-var strundefined = typeof undefined;
-
-
-
-support.focusinBubbles = "onfocusin" in window;
-
-
-var
-	rkeyEvent = /^key/,
-	rmouseEvent = /^(?:mouse|pointer|contextmenu)|click/,
-	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
-	rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
-
-function returnTrue() {
-	return true;
-}
-
-function returnFalse() {
-	return false;
-}
-
-function safeActiveElement() {
-	try {
-		return document.activeElement;
-	} catch ( err ) { }
-}
-
-/*
- * Helper functions for managing events -- not part of the public interface.
- * Props to Dean Edwards' addEvent library for many of the ideas.
- */
-jQuery.event = {
-
-	global: {},
-
-	add: function( elem, types, handler, data, selector ) {
-
-		var handleObjIn, eventHandle, tmp,
-			events, t, handleObj,
-			special, handlers, type, namespaces, origType,
-			elemData = data_priv.get( elem );
-
-		// Don't attach events to noData or text/comment nodes (but allow plain objects)
-		if ( !elemData ) {
-			return;
-		}
-
-		// Caller can pass in an object of custom data in lieu of the handler
-		if ( handler.handler ) {
-			handleObjIn = handler;
-			handler = handleObjIn.handler;
-			selector = handleObjIn.selector;
-		}
-
-		// Make sure that the handler has a unique ID, used to find/remove it later
-		if ( !handler.guid ) {
-			handler.guid = jQuery.guid++;
-		}
-
-		// Init the element's event structure and main handler, if this is the first
-		if ( !(events = elemData.events) ) {
-			events = elemData.events = {};
-		}
-		if ( !(eventHandle = elemData.handle) ) {
-			eventHandle = elemData.handle = function( e ) {
-				// Discard the second event of a jQuery.event.trigger() and
-				// when an event is called after a page has unloaded
-				return typeof jQuery !== strundefined && jQuery.event.triggered !== e.type ?
-					jQuery.event.dispatch.apply( elem, arguments ) : undefined;
-			};
-		}
-
-		// Handle multiple events separated by a space
-		types = ( types || "" ).match( rnotwhite ) || [ "" ];
-		t = types.length;
-		while ( t-- ) {
-			tmp = rtypenamespace.exec( types[t] ) || [];
-			type = origType = tmp[1];
-			namespaces = ( tmp[2] || "" ).split( "." ).sort();
-
-			// There *must* be a type, no attaching namespace-only handlers
-			if ( !type ) {
-				continue;
-			}
-
-			// If event changes its type, use the special event handlers for the changed type
-			special = jQuery.event.special[ type ] || {};
-
-			// If selector defined, determine special event api type, otherwise given type
-			type = ( selector ? special.delegateType : special.bindType ) || type;
-
-			// Update special based on newly reset type
-			special = jQuery.event.special[ type ] || {};
-
-			// handleObj is passed to all event handlers
-			handleObj = jQuery.extend({
-				type: type,
-				origType: origType,
-				data: data,
-				handler: handler,
-				guid: handler.guid,
-				selector: selector,
-				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
-				namespace: namespaces.join(".")
-			}, handleObjIn );
-
-			// Init the event handler queue if we're the first
-			if ( !(handlers = events[ type ]) ) {
-				handlers = events[ type ] = [];
-				handlers.delegateCount = 0;
-
-				// Only use addEventListener if the special events handler returns false
-				if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
-					if ( elem.addEventListener ) {
-						elem.addEventListener( type, eventHandle, false );
-					}
-				}
-			}
-
-			if ( special.add ) {
-				special.add.call( elem, handleObj );
-
-				if ( !handleObj.handler.guid ) {
-					handleObj.handler.guid = handler.guid;
-				}
-			}
-
-			// Add to the element's handler list, delegates in front
-			if ( selector ) {
-				handlers.splice( handlers.delegateCount++, 0, handleObj );
-			} else {
-				handlers.push( handleObj );
-			}
-
-			// Keep track of which events have ever been used, for event optimization
-			jQuery.event.global[ type ] = true;
-		}
-
-	},
-
-	// Detach an event or set of events from an element
-	remove: function( elem, types, handler, selector, mappedTypes ) {
-
-		var j, origCount, tmp,
-			events, t, handleObj,
-			special, handlers, type, namespaces, origType,
-			elemData = data_priv.hasData( elem ) && data_priv.get( elem );
-
-		if ( !elemData || !(events = elemData.events) ) {
-			return;
-		}
-
-		// Once for each type.namespace in types; type may be omitted
-		types = ( types || "" ).match( rnotwhite ) || [ "" ];
-		t = types.length;
-		while ( t-- ) {
-			tmp = rtypenamespace.exec( types[t] ) || [];
-			type = origType = tmp[1];
-			namespaces = ( tmp[2] || "" ).split( "." ).sort();
-
-			// Unbind all events (on this namespace, if provided) for the element
-			if ( !type ) {
-				for ( type in events ) {
-					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
-				}
-				continue;
-			}
-
-			special = jQuery.event.special[ type ] || {};
-			type = ( selector ? special.delegateType : special.bindType ) || type;
-			handlers = events[ type ] || [];
-			tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );
-
-			// Remove matching events
-			origCount = j = handlers.length;
-			while ( j-- ) {
-				handleObj = handlers[ j ];
-
-				if ( ( mappedTypes || origType === handleObj.origType ) &&
-					( !handler || handler.guid === handleObj.guid ) &&
-					( !tmp || tmp.test( handleObj.namespace ) ) &&
-					( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
-					handlers.splice( j, 1 );
-
-					if ( handleObj.selector ) {
-						handlers.delegateCount--;
-					}
-					if ( special.remove ) {
-						special.remove.call( elem, handleObj );
-					}
-				}
-			}
-
-			// Remove generic event handler if we removed something and no more handlers exist
-			// (avoids potential for endless recursion during removal of special event handlers)
-			if ( origCount && !handlers.length ) {
-				if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
-					jQuery.removeEvent( elem, type, elemData.handle );
-				}
-
-				delete events[ type ];
-			}
-		}
-
-		// Remove the expando if it's no longer used
-		if ( jQuery.isEmptyObject( events ) ) {
-			delete elemData.handle;
-			data_priv.remove( elem, "events" );
-		}
-	},
-
-	trigger: function( event, data, elem, onlyHandlers ) {
-
-		var i, cur, tmp, bubbleType, ontype, handle, special,
-			eventPath = [ elem || document ],
-			type = hasOwn.call( event, "type" ) ? event.type : event,
-			namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];
-
-		cur = tmp = elem = elem || document;
-
-		// Don't do events on text and comment nodes
-		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
-			return;
-		}
-
-		// focus/blur morphs to focusin/out; ensure we're not firing them right now
-		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
-			return;
-		}
-
-		if ( type.indexOf(".") >= 0 ) {
-			// Namespaced trigger; create a regexp to match event type in handle()
-			namespaces = type.split(".");
-			type = namespaces.shift();
-			namespaces.sort();
-		}
-		ontype = type.indexOf(":") < 0 && "on" + type;
-
-		// Caller can pass in a jQuery.Event object, Object, or just an event type string
-		event = event[ jQuery.expando ] ?
-			event :
-			new jQuery.Event( type, typeof event === "object" && event );
-
-		// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
-		event.isTrigger = onlyHandlers ? 2 : 3;
-		event.namespace = namespaces.join(".");
-		event.namespace_re = event.namespace ?
-			new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
-			null;
-
-		// Clean up the event in case it is being reused
-		event.result = undefined;
-		if ( !event.target ) {
-			event.target = elem;
-		}
-
-		// Clone any incoming data and prepend the event, creating the handler arg list
-		data = data == null ?
-			[ event ] :
-			jQuery.makeArray( data, [ event ] );
-
-		// Allow special events to draw outside the lines
-		special = jQuery.event.special[ type ] || {};
-		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
-			return;
-		}
-
-		// Determine event propagation path in advance, per W3C events spec (#9951)
-		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
-		if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
-
-			bubbleType = special.delegateType || type;
-			if ( !rfocusMorph.test( bubbleType + type ) ) {
-				cur = cur.parentNode;
-			}
-			for ( ; cur; cur = cur.parentNode ) {
-				eventPath.push( cur );
-				tmp = cur;
-			}
-
-			// Only add window if we got to document (e.g., not plain obj or detached DOM)
-			if ( tmp === (elem.ownerDocument || document) ) {
-				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
-			}
-		}
-
-		// Fire handlers on the event path
-		i = 0;
-		while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
-
-			event.type = i > 1 ?
-				bubbleType :
-				special.bindType || type;
-
-			// jQuery handler
-			handle = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );
-			if ( handle ) {
-				handle.apply( cur, data );
-			}
-
-			// Native handler
-			handle = ontype && cur[ ontype ];
-			if ( handle && handle.apply && jQuery.acceptData( cur ) ) {
-				event.result = handle.apply( cur, data );
-				if ( event.result === false ) {
-					event.preventDefault();
-				}
-			}
-		}
-		event.type = type;
-
-		// If nobody prevented the default action, do it now
-		if ( !onlyHandlers && !event.isDefaultPrevented() ) {
-
-			if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&
-				jQuery.acceptData( elem ) ) {
-
-				// Call a native DOM method on the target with the same name name as the event.
-				// Don't do default actions on window, that's where global variables be (#6170)
-				if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
-
-					// Don't re-trigger an onFOO event when we call its FOO() method
-					tmp = elem[ ontype ];
-
-					if ( tmp ) {
-						elem[ ontype ] = null;
-					}
-
-					// Prevent re-triggering of the same event, since we already bubbled it above
-					jQuery.event.triggered = type;
-					elem[ type ]();
-					jQuery.event.triggered = undefined;
-
-					if ( tmp ) {
-						elem[ ontype ] = tmp;
-					}
-				}
-			}
-		}
-
-		return event.result;
-	},
-
-	dispatch: function( event ) {
-
-		// Make a writable jQuery.Event from the native event object
-		event = jQuery.event.fix( event );
-
-		var i, j, ret, matched, handleObj,
-			handlerQueue = [],
-			args = slice.call( arguments ),
-			handlers = ( data_priv.get( this, "events" ) || {} )[ event.type ] || [],
-			special = jQuery.event.special[ event.type ] || {};
-
-		// Use the fix-ed jQuery.Event rather than the (read-only) native event
-		args[0] = event;
-		event.delegateTarget = this;
-
-		// Call the preDispatch hook for the mapped type, and let it bail if desired
-		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
-			return;
-		}
-
-		// Determine handlers
-		handlerQueue = jQuery.event.handlers.call( this, event, handlers );
-
-		// Run delegates first; they may want to stop propagation beneath us
-		i = 0;
-		while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
-			event.currentTarget = matched.elem;
-
-			j = 0;
-			while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {
-
-				// Triggered event must either 1) have no namespace, or 2) have namespace(s)
-				// a subset or equal to those in the bound event (both can have no namespace).
-				if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {
-
-					event.handleObj = handleObj;
-					event.data = handleObj.data;
-
-					ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
-							.apply( matched.elem, args );
-
-					if ( ret !== undefined ) {
-						if ( (event.result = ret) === false ) {
-							event.preventDefault();
-							event.stopPropagation();
-						}
-					}
-				}
-			}
-		}
-
-		// Call the postDispatch hook for the mapped type
-		if ( special.postDispatch ) {
-			special.postDispatch.call( this, event );
-		}
-
-		return event.result;
-	},
-
-	handlers: function( event, handlers ) {
-		var i, matches, sel, handleObj,
-			handlerQueue = [],
-			delegateCount = handlers.delegateCount,
-			cur = event.target;
-
-		// Find delegate handlers
-		// Black-hole SVG <use> instance trees (#13180)
-		// Avoid non-left-click bubbling in Firefox (#3861)
-		if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
-
-			for ( ; cur !== this; cur = cur.parentNode || this ) {
-
-				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
-				if ( cur.disabled !== true || event.type !== "click" ) {
-					matches = [];
-					for ( i = 0; i < delegateCount; i++ ) {
-						handleObj = handlers[ i ];
-
-						// Don't conflict with Object.prototype properties (#13203)
-						sel = handleObj.selector + " ";
-
-						if ( matches[ sel ] === undefined ) {
-							matches[ sel ] = handleObj.needsContext ?
-								jQuery( sel, this ).index( cur ) >= 0 :
-								jQuery.find( sel, this, null, [ cur ] ).length;
-						}
-						if ( matches[ sel ] ) {
-							matches.push( handleObj );
-						}
-					}
-					if ( matches.length ) {
-						handlerQueue.push({ elem: cur, handlers: matches });
-					}
-				}
-			}
-		}
-
-		// Add the remaining (directly-bound) handlers
-		if ( delegateCount < handlers.length ) {
-			handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
-		}
-
-		return handlerQueue;
-	},
-
-	// Includes some event props shared by KeyEvent and MouseEvent
-	props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
-
-	fixHooks: {},
-
-	keyHooks: {
-		props: "char charCode key keyCode".split(" "),
-		filter: function( event, original ) {
-
-			// Add which for key events
-			if ( event.which == null ) {
-				event.which = original.charCode != null ? original.charCode : original.keyCode;
-			}
-
-			return event;
-		}
-	},
-
-	mouseHooks: {
-		props: "button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
-		filter: function( event, original ) {
-			var eventDoc, doc, body,
-				button = original.button;
-
-			// Calculate pageX/Y if missing and clientX/Y available
-			if ( event.pageX == null && original.clientX != null ) {
-				eventDoc = event.target.ownerDocument || document;
-				doc = eventDoc.documentElement;
-				body = eventDoc.body;
-
-				event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
-				event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );
-			}
-
-			// Add which for click: 1 === left; 2 === middle; 3 === right
-			// Note: button is not normalized, so don't use it
-			if ( !event.which && button !== undefined ) {
-				event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
-			}
-
-			return event;
-		}
-	},
-
-	fix: function( event ) {
-		if ( event[ jQuery.expando ] ) {
-			return event;
-		}
-
-		// Create a writable copy of the event object and normalize some properties
-		var i, prop, copy,
-			type = event.type,
-			originalEvent = event,
-			fixHook = this.fixHooks[ type ];
-
-		if ( !fixHook ) {
-			this.fixHooks[ type ] = fixHook =
-				rmouseEvent.test( type ) ? this.mouseHooks :
-				rkeyEvent.test( type ) ? this.keyHooks :
-				{};
-		}
-		copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
-
-		event = new jQuery.Event( originalEvent );
-
-		i = copy.length;
-		while ( i-- ) {
-			prop = copy[ i ];
-			event[ prop ] = originalEvent[ prop ];
-		}
-
-		// Support: Cordova 2.5 (WebKit) (#13255)
-		// All events should have a target; Cordova deviceready doesn't
-		if ( !event.target ) {
-			event.target = document;
-		}
-
-		// Support: Safari 6.0+, Chrome<28
-		// Target should not be a text node (#504, #13143)
-		if ( event.target.nodeType === 3 ) {
-			event.target = event.target.parentNode;
-		}
-
-		return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
-	},
-
-	special: {
-		load: {
-			// Prevent triggered image.load events from bubbling to window.load
-			noBubble: true
-		},
-		focus: {
-			// Fire native event if possible so blur/focus sequence is correct
-			trigger: function() {
-				if ( this !== safeActiveElement() && this.focus ) {
-					this.focus();
-					return false;
-				}
-			},
-			delegateType: "focusin"
-		},
-		blur: {
-			trigger: function() {
-				if ( this === safeActiveElement() && this.blur ) {
-					this.blur();
-					return false;
-				}
-			},
-			delegateType: "focusout"
-		},
-		click: {
-			// For checkbox, fire native event so checked state will be right
-			trigger: function() {
-				if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
-					this.click();
-					return false;
-				}
-			},
-
-			// For cross-browser consistency, don't fire native .click() on links
-			_default: function( event ) {
-				return jQuery.nodeName( event.target, "a" );
-			}
-		},
-
-		beforeunload: {
-			postDispatch: function( event ) {
-
-				// Support: Firefox 20+
-				// Firefox doesn't alert if the returnValue field is not set.
-				if ( event.result !== undefined && event.originalEvent ) {
-					event.originalEvent.returnValue = event.result;
-				}
-			}
-		}
-	},
-
-	simulate: function( type, elem, event, bubble ) {
-		// Piggyback on a donor event to simulate a different one.
-		// Fake originalEvent to avoid donor's stopPropagation, but if the
-		// simulated event prevents default then we do the same on the donor.
-		var e = jQuery.extend(
-			new jQuery.Event(),
-			event,
-			{
-				type: type,
-				isSimulated: true,
-				originalEvent: {}
-			}
-		);
-		if ( bubble ) {
-			jQuery.event.trigger( e, null, elem );
-		} else {
-			jQuery.event.dispatch.call( elem, e );
-		}
-		if ( e.isDefaultPrevented() ) {
-			event.preventDefault();
-		}
-	}
-};
-
-jQuery.removeEvent = function( elem, type, handle ) {
-	if ( elem.removeEventListener ) {
-		elem.removeEventListener( type, handle, false );
-	}
-};
-
-jQuery.Event = function( src, props ) {
-	// Allow instantiation without the 'new' keyword
-	if ( !(this instanceof jQuery.Event) ) {
-		return new jQuery.Event( src, props );
-	}
-
-	// Event object
-	if ( src && src.type ) {
-		this.originalEvent = src;
-		this.type = src.type;
-
-		// Events bubbling up the document may have been marked as prevented
-		// by a handler lower down the tree; reflect the correct value.
-		this.isDefaultPrevented = src.defaultPrevented ||
-				src.defaultPrevented === undefined &&
-				// Support: Android<4.0
-				src.returnValue === false ?
-			returnTrue :
-			returnFalse;
-
-	// Event type
-	} else {
-		this.type = src;
-	}
-
-	// Put explicitly provided properties onto the event object
-	if ( props ) {
-		jQuery.extend( this, props );
-	}
-
-	// Create a timestamp if incoming event doesn't have one
-	this.timeStamp = src && src.timeStamp || jQuery.now();
-
-	// Mark it as fixed
-	this[ jQuery.expando ] = true;
-};
-
-// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
-// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
-jQuery.Event.prototype = {
-	isDefaultPrevented: returnFalse,
-	isPropagationStopped: returnFalse,
-	isImmediatePropagationStopped: returnFalse,
-
-	preventDefault: function() {
-		var e = this.originalEvent;
-
-		this.isDefaultPrevented = returnTrue;
-
-		if ( e && e.preventDefault ) {
-			e.preventDefault();
-		}
-	},
-	stopPropagation: function() {
-		var e = this.originalEvent;
-
-		this.isPropagationStopped = returnTrue;
-
-		if ( e && e.stopPropagation ) {
-			e.stopPropagation();
-		}
-	},
-	stopImmediatePropagation: function() {
-		var e = this.originalEvent;
-
-		this.isImmediatePropagationStopped = returnTrue;
-
-		if ( e && e.stopImmediatePropagation ) {
-			e.stopImmediatePropagation();
-		}
-
-		this.stopPropagation();
-	}
-};
-
-// Create mouseenter/leave events using mouseover/out and event-time checks
-// Support: Chrome 15+
-jQuery.each({
-	mouseenter: "mouseover",
-	mouseleave: "mouseout",
-	pointerenter: "pointerover",
-	pointerleave: "pointerout"
-}, function( orig, fix ) {
-	jQuery.event.special[ orig ] = {
-		delegateType: fix,
-		bindType: fix,
-
-		handle: function( event ) {
-			var ret,
-				target = this,
-				related = event.relatedTarget,
-				handleObj = event.handleObj;
-
-			// For mousenter/leave call the handler if related is outside the target.
-			// NB: No relatedTarget if the mouse left/entered the browser window
-			if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
-				event.type = handleObj.origType;
-				ret = handleObj.handler.apply( this, arguments );
-				event.type = fix;
-			}
-			return ret;
-		}
-	};
-});
-
-// Support: Firefox, Chrome, Safari
-// Create "bubbling" focus and blur events
-if ( !support.focusinBubbles ) {
-	jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
-
-		// Attach a single capturing handler on the document while someone wants focusin/focusout
-		var handler = function( event ) {
-				jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
-			};
-
-		jQuery.event.special[ fix ] = {
-			setup: function() {
-				var doc = this.ownerDocument || this,
-					attaches = data_priv.access( doc, fix );
-
-				if ( !attaches ) {
-					doc.addEventListener( orig, handler, true );
-				}
-				data_priv.access( doc, fix, ( attaches || 0 ) + 1 );
-			},
-			teardown: function() {
-				var doc = this.ownerDocument || this,
-					attaches = data_priv.access( doc, fix ) - 1;
-
-				if ( !attaches ) {
-					doc.removeEventListener( orig, handler, true );
-					data_priv.remove( doc, fix );
-
-				} else {
-					data_priv.access( doc, fix, attaches );
-				}
-			}
-		};
-	});
-}
-
-jQuery.fn.extend({
-
-	on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
-		var origFn, type;
-
-		// Types can be a map of types/handlers
-		if ( typeof types === "object" ) {
-			// ( types-Object, selector, data )
-			if ( typeof selector !== "string" ) {
-				// ( types-Object, data )
-				data = data || selector;
-				selector = undefined;
-			}
-			for ( type in types ) {
-				this.on( type, selector, data, types[ type ], one );
-			}
-			return this;
-		}
-
-		if ( data == null && fn == null ) {
-			// ( types, fn )
-			fn = selector;
-			data = selector = undefined;
-		} else if ( fn == null ) {
-			if ( typeof selector === "string" ) {
-				// ( types, selector, fn )
-				fn = data;
-				data = undefined;
-			} else {
-				// ( types, data, fn )
-				fn = data;
-				data = selector;
-				selector = undefined;
-			}
-		}
-		if ( fn === false ) {
-			fn = returnFalse;
-		} else if ( !fn ) {
-			return this;
-		}
-
-		if ( one === 1 ) {
-			origFn = fn;
-			fn = function( event ) {
-				// Can use an empty set, since event contains the info
-				jQuery().off( event );
-				return origFn.apply( this, arguments );
-			};
-			// Use same guid so caller can remove using origFn
-			fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
-		}
-		return this.each( function() {
-			jQuery.event.add( this, types, fn, data, selector );
-		});
-	},
-	one: function( types, selector, data, fn ) {
-		return this.on( types, selector, data, fn, 1 );
-	},
-	off: function( types, selector, fn ) {
-		var handleObj, type;
-		if ( types && types.preventDefault && types.handleObj ) {
-			// ( event )  dispatched jQuery.Event
-			handleObj = types.handleObj;
-			jQuery( types.delegateTarget ).off(
-				handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
-				handleObj.selector,
-				handleObj.handler
-			);
-			return this;
-		}
-		if ( typeof types === "object" ) {
-			// ( types-object [, selector] )
-			for ( type in types ) {
-				this.off( type, selector, types[ type ] );
-			}
-			return this;
-		}
-		if ( selector === false || typeof selector === "function" ) {
-			// ( types [, fn] )
-			fn = selector;
-			selector = undefined;
-		}
-		if ( fn === false ) {
-			fn = returnFalse;
-		}
-		return this.each(function() {
-			jQuery.event.remove( this, types, fn, selector );
-		});
-	},
-
-	trigger: function( type, data ) {
-		return this.each(function() {
-			jQuery.event.trigger( type, data, this );
-		});
-	},
-	triggerHandler: function( type, data ) {
-		var elem = this[0];
-		if ( elem ) {
-			return jQuery.event.trigger( type, data, elem, true );
-		}
-	}
-});
-
-
-var
-	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
-	rtagName = /<([\w:]+)/,
-	rhtml = /<|&#?\w+;/,
-	rnoInnerhtml = /<(?:script|style|link)/i,
-	// checked="checked" or checked
-	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
-	rscriptType = /^$|\/(?:java|ecma)script/i,
-	rscriptTypeMasked = /^true\/(.*)/,
-	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
-
-	// We have to close these tags to support XHTML (#13200)
-	wrapMap = {
-
-		// Support: IE9
-		option: [ 1, "<select multiple='multiple'>", "</select>" ],
-
-		thead: [ 1, "<table>", "</table>" ],
-		col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
-		tr: [ 2, "<table><tbody>", "</tbody></table>" ],
-		td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
-
-		_default: [ 0, "", "" ]
-	};
-
-// Support: IE9
-wrapMap.optgroup = wrapMap.option;
-
-wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
-wrapMap.th = wrapMap.td;
-
-// Support: 1.x compatibility
-// Manipulating tables requires a tbody
-function manipulationTarget( elem, content ) {
-	return jQuery.nodeName( elem, "table" ) &&
-		jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ?
-
-		elem.getElementsByTagName("tbody")[0] ||
-			elem.appendChild( elem.ownerDocument.createElement("tbody") ) :
-		elem;
-}
-
-// Replace/restore the type attribute of script elements for safe DOM manipulation
-function disableScript( elem ) {
-	elem.type = (elem.getAttribute("type") !== null) + "/" + elem.type;
-	return elem;
-}
-function restoreScript( elem ) {
-	var match = rscriptTypeMasked.exec( elem.type );
-
-	if ( match ) {
-		elem.type = match[ 1 ];
-	} else {
-		elem.removeAttribute("type");
-	}
-
-	return elem;
-}
-
-// Mark scripts as having already been evaluated
-function setGlobalEval( elems, refElements ) {
-	var i = 0,
-		l = elems.length;
-
-	for ( ; i < l; i++ ) {
-		data_priv.set(
-			elems[ i ], "globalEval", !refElements || data_priv.get( refElements[ i ], "globalEval" )
-		);
-	}
-}
-
-function cloneCopyEvent( src, dest ) {
-	var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
-
-	if ( dest.nodeType !== 1 ) {
-		return;
-	}
-
-	// 1. Copy private data: events, handlers, etc.
-	if ( data_priv.hasData( src ) ) {
-		pdataOld = data_priv.access( src );
-		pdataCur = data_priv.set( dest, pdataOld );
-		events = pdataOld.events;
-
-		if ( events ) {
-			delete pdataCur.handle;
-			pdataCur.events = {};
-
-			for ( type in events ) {
-				for ( i = 0, l = events[ type ].length; i < l; i++ ) {
-					jQuery.event.add( dest, type, events[ type ][ i ] );
-				}
-			}
-		}
-	}
-
-	// 2. Copy user data
-	if ( data_user.hasData( src ) ) {
-		udataOld = data_user.access( src );
-		udataCur = jQuery.extend( {}, udataOld );
-
-		data_user.set( dest, udataCur );
-	}
-}
-
-function getAll( context, tag ) {
-	var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) :
-			context.querySelectorAll ? context.querySelectorAll( tag || "*" ) :
-			[];
-
-	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
-		jQuery.merge( [ context ], ret ) :
-		ret;
-}
-
-// Fix IE bugs, see support tests
-function fixInput( src, dest ) {
-	var nodeName = dest.nodeName.toLowerCase();
-
-	// Fails to persist the checked state of a cloned checkbox or radio button.
-	if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
-		dest.checked = src.checked;
-
-	// Fails to return the selected option to the default selected state when cloning options
-	} else if ( nodeName === "input" || nodeName === "textarea" ) {
-		dest.defaultValue = src.defaultValue;
-	}
-}
-
-jQuery.extend({
-	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
-		var i, l, srcElements, destElements,
-			clone = elem.cloneNode( true ),
-			inPage = jQuery.contains( elem.ownerDocument, elem );
-
-		// Fix IE cloning issues
-		if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
-				!jQuery.isXMLDoc( elem ) ) {
-
-			// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
-			destElements = getAll( clone );
-			srcElements = getAll( elem );
-
-			for ( i = 0, l = srcElements.length; i < l; i++ ) {
-				fixInput( srcElements[ i ], destElements[ i ] );
-			}
-		}
-
-		// Copy the events from the original to the clone
-		if ( dataAndEvents ) {
-			if ( deepDataAndEvents ) {
-				srcElements = srcElements || getAll( elem );
-				destElements = destElements || getAll( clone );
-
-				for ( i = 0, l = srcElements.length; i < l; i++ ) {
-					cloneCopyEvent( srcElements[ i ], destElements[ i ] );
-				}
-			} else {
-				cloneCopyEvent( elem, clone );
-			}
-		}
-
-		// Preserve script evaluation history
-		destElements = getAll( clone, "script" );
-		if ( destElements.length > 0 ) {
-			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
-		}
-
-		// Return the cloned set
-		return clone;
-	},
-
-	buildFragment: function( elems, context, scripts, selection ) {
-		var elem, tmp, tag, wrap, contains, j,
-			fragment = context.createDocumentFragment(),
-			nodes = [],
-			i = 0,
-			l = elems.length;
-
-		for ( ; i < l; i++ ) {
-			elem = elems[ i ];
-
-			if ( elem || elem === 0 ) {
-
-				// Add nodes directly
-				if ( jQuery.type( elem ) === "object" ) {
-					// Support: QtWebKit, PhantomJS
-					// push.apply(_, arraylike) throws on ancient WebKit
-					jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
-
-				// Convert non-html into a text node
-				} else if ( !rhtml.test( elem ) ) {
-					nodes.push( context.createTextNode( elem ) );
-
-				// Convert html into DOM nodes
-				} else {
-					tmp = tmp || fragment.appendChild( context.createElement("div") );
-
-					// Deserialize a standard representation
-					tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
-					wrap = wrapMap[ tag ] || wrapMap._default;
-					tmp.innerHTML = wrap[ 1 ] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[ 2 ];
-
-					// Descend through wrappers to the right content
-					j = wrap[ 0 ];
-					while ( j-- ) {
-						tmp = tmp.lastChild;
-					}
-
-					// Support: QtWebKit, PhantomJS
-					// push.apply(_, arraylike) throws on ancient WebKit
-					jQuery.merge( nodes, tmp.childNodes );
-
-					// Remember the top-level container
-					tmp = fragment.firstChild;
-
-					// Ensure the created nodes are orphaned (#12392)
-					tmp.textContent = "";
-				}
-			}
-		}
-
-		// Remove wrapper from fragment
-		fragment.textContent = "";
-
-		i = 0;
-		while ( (elem = nodes[ i++ ]) ) {
-
-			// #4087 - If origin and destination elements are the same, and this is
-			// that element, do not do anything
-			if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
-				continue;
-			}
-
-			contains = jQuery.contains( elem.ownerDocument, elem );
-
-			// Append to fragment
-			tmp = getAll( fragment.appendChild( elem ), "script" );
-
-			// Preserve script evaluation history
-			if ( contains ) {
-				setGlobalEval( tmp );
-			}
-
-			// Capture executables
-			if ( scripts ) {
-				j = 0;
-				while ( (elem = tmp[ j++ ]) ) {
-					if ( rscriptType.test( elem.type || "" ) ) {
-						scripts.push( elem );
-					}
-				}
-			}
-		}
-
-		return fragment;
-	},
-
-	cleanData: function( elems ) {
-		var data, elem, type, key,
-			special = jQuery.event.special,
-			i = 0;
-
-		for ( ; (elem = elems[ i ]) !== undefined; i++ ) {
-			if ( jQuery.acceptData( elem ) ) {
-				key = elem[ data_priv.expando ];
-
-				if ( key && (data = data_priv.cache[ key ]) ) {
-					if ( data.events ) {
-						for ( type in data.events ) {
-							if ( special[ type ] ) {
-								jQuery.event.remove( elem, type );
-
-							// This is a shortcut to avoid jQuery.event.remove's overhead
-							} else {
-								jQuery.removeEvent( elem, type, data.handle );
-							}
-						}
-					}
-					if ( data_priv.cache[ key ] ) {
-						// Discard any remaining `private` data
-						delete data_priv.cache[ key ];
-					}
-				}
-			}
-			// Discard any remaining `user` data
-			delete data_user.cache[ elem[ data_user.expando ] ];
-		}
-	}
-});
-
-jQuery.fn.extend({
-	text: function( value ) {
-		return access( this, function( value ) {
-			return value === undefined ?
-				jQuery.text( this ) :
-				this.empty().each(function() {
-					if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-						this.textContent = value;
-					}
-				});
-		}, null, value, arguments.length );
-	},
-
-	append: function() {
-		return this.domManip( arguments, function( elem ) {
-			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-				var target = manipulationTarget( this, elem );
-				target.appendChild( elem );
-			}
-		});
-	},
-
-	prepend: function() {
-		return this.domManip( arguments, function( elem ) {
-			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-				var target = manipulationTarget( this, elem );
-				target.insertBefore( elem, target.firstChild );
-			}
-		});
-	},
-
-	before: function() {
-		return this.domManip( arguments, function( elem ) {
-			if ( this.parentNode ) {
-				this.parentNode.insertBefore( elem, this );
-			}
-		});
-	},
-
-	after: function() {
-		return this.domManip( arguments, function( elem ) {
-			if ( this.parentNode ) {
-				this.parentNode.insertBefore( elem, this.nextSibling );
-			}
-		});
-	},
-
-	remove: function( selector, keepData /* Internal Use Only */ ) {
-		var elem,
-			elems = selector ? jQuery.filter( selector, this ) : this,
-			i = 0;
-
-		for ( ; (elem = elems[i]) != null; i++ ) {
-			if ( !keepData && elem.nodeType === 1 ) {
-				jQuery.cleanData( getAll( elem ) );
-			}
-
-			if ( elem.parentNode ) {
-				if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
-					setGlobalEval( getAll( elem, "script" ) );
-				}
-				elem.parentNode.removeChild( elem );
-			}
-		}
-
-		return this;
-	},
-
-	empty: function() {
-		var elem,
-			i = 0;
-
-		for ( ; (elem = this[i]) != null; i++ ) {
-			if ( elem.nodeType === 1 ) {
-
-				// Prevent memory leaks
-				jQuery.cleanData( getAll( elem, false ) );
-
-				// Remove any remaining nodes
-				elem.textContent = "";
-			}
-		}
-
-		return this;
-	},
-
-	clone: function( dataAndEvents, deepDataAndEvents ) {
-		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
-		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
-
-		return this.map(function() {
-			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
-		});
-	},
-
-	html: function( value ) {
-		return access( this, function( value ) {
-			var elem = this[ 0 ] || {},
-				i = 0,
-				l = this.length;
-
-			if ( value === undefined && elem.nodeType === 1 ) {
-				return elem.innerHTML;
-			}
-
-			// See if we can take a shortcut and just use innerHTML
-			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
-				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
-
-				value = value.replace( rxhtmlTag, "<$1></$2>" );
-
-				try {
-					for ( ; i < l; i++ ) {
-						elem = this[ i ] || {};
-
-						// Remove element nodes and prevent memory leaks
-						if ( elem.nodeType === 1 ) {
-							jQuery.cleanData( getAll( elem, false ) );
-							elem.innerHTML = value;
-						}
-					}
-
-					elem = 0;
-
-				// If using innerHTML throws an exception, use the fallback method
-				} catch( e ) {}
-			}
-
-			if ( elem ) {
-				this.empty().append( value );
-			}
-		}, null, value, arguments.length );
-	},
-
-	replaceWith: function() {
-		var arg = arguments[ 0 ];
-
-		// Make the changes, replacing each context element with the new content
-		this.domManip( arguments, function( elem ) {
-			arg = this.parentNode;
-
-			jQuery.cleanData( getAll( this ) );
-
-			if ( arg ) {
-				arg.replaceChild( elem, this );
-			}
-		});
-
-		// Force removal if there was no new content (e.g., from empty arguments)
-		return arg && (arg.length || arg.nodeType) ? this : this.remove();
-	},
-
-	detach: function( selector ) {
-		return this.remove( selector, true );
-	},
-
-	domManip: function( args, callback ) {
-
-		// Flatten any nested arrays
-		args = concat.apply( [], args );
-
-		var fragment, first, scripts, hasScripts, node, doc,
-			i = 0,
-			l = this.length,
-			set = this,
-			iNoClone = l - 1,
-			value = args[ 0 ],
-			isFunction = jQuery.isFunction( value );
-
-		// We can't cloneNode fragments that contain checked, in WebKit
-		if ( isFunction ||
-				( l > 1 && typeof value === "string" &&
-					!support.checkClone && rchecked.test( value ) ) ) {
-			return this.each(function( index ) {
-				var self = set.eq( index );
-				if ( isFunction ) {
-					args[ 0 ] = value.call( this, index, self.html() );
-				}
-				self.domManip( args, callback );
-			});
-		}
-
-		if ( l ) {
-			fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this );
-			first = fragment.firstChild;
-
-			if ( fragment.childNodes.length === 1 ) {
-				fragment = first;
-			}
-
-			if ( first ) {
-				scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
-				hasScripts = scripts.length;
-
-				// Use the original fragment for the last item instead of the first because it can end up
-				// being emptied incorrectly in certain situations (#8070).
-				for ( ; i < l; i++ ) {
-					node = fragment;
-
-					if ( i !== iNoClone ) {
-						node = jQuery.clone( node, true, true );
-
-						// Keep references to cloned scripts for later restoration
-						if ( hasScripts ) {
-							// Support: QtWebKit
-							// jQuery.merge because push.apply(_, arraylike) throws
-							jQuery.merge( scripts, getAll( node, "script" ) );
-						}
-					}
-
-					callback.call( this[ i ], node, i );
-				}
-
-				if ( hasScripts ) {
-					doc = scripts[ scripts.length - 1 ].ownerDocument;
-
-					// Reenable scripts
-					jQuery.map( scripts, restoreScript );
-
-					// Evaluate executable scripts on first document insertion
-					for ( i = 0; i < hasScripts; i++ ) {
-						node = scripts[ i ];
-						if ( rscriptType.test( node.type || "" ) &&
-							!data_priv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) {
-
-							if ( node.src ) {
-								// Optional AJAX dependency, but won't run scripts if not present
-								if ( jQuery._evalUrl ) {
-									jQuery._evalUrl( node.src );
-								}
-							} else {
-								jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );
-							}
-						}
-					}
-				}
-			}
-		}
-
-		return this;
-	}
-});
-
-jQuery.each({
-	appendTo: "append",
-	prependTo: "prepend",
-	insertBefore: "before",
-	insertAfter: "after",
-	replaceAll: "replaceWith"
-}, function( name, original ) {
-	jQuery.fn[ name ] = function( selector ) {
-		var elems,
-			ret = [],
-			insert = jQuery( selector ),
-			last = insert.length - 1,
-			i = 0;
-
-		for ( ; i <= last; i++ ) {
-			elems = i === last ? this : this.clone( true );
-			jQuery( insert[ i ] )[ original ]( elems );
-
-			// Support: QtWebKit
-			// .get() because push.apply(_, arraylike) throws
-			push.apply( ret, elems.get() );
-		}
-
-		return this.pushStack( ret );
-	};
-});
-
-
-var iframe,
-	elemdisplay = {};
-
-/**
- * Retrieve the actual display of a element
- * @param {String} name nodeName of the element
- * @param {Object} doc Document object
- */
-// Called only from within defaultDisplay
-function actualDisplay( name, doc ) {
-	var style,
-		elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
-
-		// getDefaultComputedStyle might be reliably used only on attached element
-		display = window.getDefaultComputedStyle && ( style = window.getDefaultComputedStyle( elem[ 0 ] ) ) ?
-
-			// Use of this method is a temporary fix (more like optimization) until something better comes along,
-			// since it was removed from specification and supported only in FF
-			style.display : jQuery.css( elem[ 0 ], "display" );
-
-	// We don't have any data stored on the element,
-	// so use "detach" method as fast way to get rid of the element
-	elem.detach();
-
-	return display;
-}
-
-/**
- * Try to determine the default display value of an element
- * @param {String} nodeName
- */
-function defaultDisplay( nodeName ) {
-	var doc = document,
-		display = elemdisplay[ nodeName ];
-
-	if ( !display ) {
-		display = actualDisplay( nodeName, doc );
-
-		// If the simple way fails, read from inside an iframe
-		if ( display === "none" || !display ) {
-
-			// Use the already-created iframe if possible
-			iframe = (iframe || jQuery( "<iframe frameborder='0' width='0' height='0'/>" )).appendTo( doc.documentElement );
-
-			// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
-			doc = iframe[ 0 ].contentDocument;
-
-			// Support: IE
-			doc.write();
-			doc.close();
-
-			display = actualDisplay( nodeName, doc );
-			iframe.detach();
-		}
-
-		// Store the correct default display
-		elemdisplay[ nodeName ] = display;
-	}
-
-	return display;
-}
-var rmargin = (/^margin/);
-
-var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
-
-var getStyles = function( elem ) {
-		// Support: IE<=11+, Firefox<=30+ (#15098, #14150)
-		// IE throws on elements created in popups
-		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
-		if ( elem.ownerDocument.defaultView.opener ) {
-			return elem.ownerDocument.defaultView.getComputedStyle( elem, null );
-		}
-
-		return window.getComputedStyle( elem, null );
-	};
-
-
-
-function curCSS( elem, name, computed ) {
-	var width, minWidth, maxWidth, ret,
-		style = elem.style;
-
-	computed = computed || getStyles( elem );
-
-	// Support: IE9
-	// getPropertyValue is only needed for .css('filter') (#12537)
-	if ( computed ) {
-		ret = computed.getPropertyValue( name ) || computed[ name ];
-	}
-
-	if ( computed ) {
-
-		if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
-			ret = jQuery.style( elem, name );
-		}
-
-		// Support: iOS < 6
-		// A tribute to the "awesome hack by Dean Edwards"
-		// iOS < 6 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
-		// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
-		if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
-
-			// Remember the original values
-			width = style.width;
-			minWidth = style.minWidth;
-			maxWidth = style.maxWidth;
-
-			// Put in the new values to get a computed value out
-			style.minWidth = style.maxWidth = style.width = ret;
-			ret = computed.width;
-
-			// Revert the changed values
-			style.width = width;
-			style.minWidth = minWidth;
-			style.maxWidth = maxWidth;
-		}
-	}
-
-	return ret !== undefined ?
-		// Support: IE
-		// IE returns zIndex value as an integer.
-		ret + "" :
-		ret;
-}
-
-
-function addGetHookIf( conditionFn, hookFn ) {
-	// Define the hook, we'll check on the first run if it's really needed.
-	return {
-		get: function() {
-			if ( conditionFn() ) {
-				// Hook not needed (or it's not possible to use it due
-				// to missing dependency), remove it.
-				delete this.get;
-				return;
-			}
-
-			// Hook needed; redefine it so that the support test is not executed again.
-			return (this.get = hookFn).apply( this, arguments );
-		}
-	};
-}
-
-
-(function() {
-	var pixelPositionVal, boxSizingReliableVal,
-		docElem = document.documentElement,
-		container = document.createElement( "div" ),
-		div = document.createElement( "div" );
-
-	if ( !div.style ) {
-		return;
-	}
-
-	// Support: IE9-11+
-	// Style of cloned element affects source element cloned (#8908)
-	div.style.backgroundClip = "content-box";
-	div.cloneNode( true ).style.backgroundClip = "";
-	support.clearCloneStyle = div.style.backgroundClip === "content-box";
-
-	container.style.cssText = "border:0;width:0;height:0;top:0;left:-9999px;margin-top:1px;" +
-		"position:absolute";
-	container.appendChild( div );
-
-	// Executing both pixelPosition & boxSizingReliable tests require only one layout
-	// so they're executed at the same time to save the second computation.
-	function computePixelPositionAndBoxSizingReliable() {
-		div.style.cssText =
-			// Support: Firefox<29, Android 2.3
-			// Vendor-prefix box-sizing
-			"-webkit-box-sizing:border-box;-moz-box-sizing:border-box;" +
-			"box-sizing:border-box;display:block;margin-top:1%;top:1%;" +
-			"border:1px;padding:1px;width:4px;position:absolute";
-		div.innerHTML = "";
-		docElem.appendChild( container );
-
-		var divStyle = window.getComputedStyle( div, null );
-		pixelPositionVal = divStyle.top !== "1%";
-		boxSizingReliableVal = divStyle.width === "4px";
-
-		docElem.removeChild( container );
-	}
-
-	// Support: node.js jsdom
-	// Don't assume that getComputedStyle is a property of the global object
-	if ( window.getComputedStyle ) {
-		jQuery.extend( support, {
-			pixelPosition: function() {
-
-				// This test is executed only once but we still do memoizing
-				// since we can use the boxSizingReliable pre-computing.
-				// No need to check if the test was already performed, though.
-				computePixelPositionAndBoxSizingReliable();
-				return pixelPositionVal;
-			},
-			boxSizingReliable: function() {
-				if ( boxSizingReliableVal == null ) {
-					computePixelPositionAndBoxSizingReliable();
-				}
-				return boxSizingReliableVal;
-			},
-			reliableMarginRight: function() {
-
-				// Support: Android 2.3
-				// Check if div with explicit width and no margin-right incorrectly
-				// gets computed margin-right based on width of container. (#3333)
-				// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
-				// This support function is only executed once so no memoizing is needed.
-				var ret,
-					marginDiv = div.appendChild( document.createElement( "div" ) );
-
-				// Reset CSS: box-sizing; display; margin; border; padding
-				marginDiv.style.cssText = div.style.cssText =
-					// Support: Firefox<29, Android 2.3
-					// Vendor-prefix box-sizing
-					"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
-					"box-sizing:content-box;display:block;margin:0;border:0;padding:0";
-				marginDiv.style.marginRight = marginDiv.style.width = "0";
-				div.style.width = "1px";
-				docElem.appendChild( container );
-
-				ret = !parseFloat( window.getComputedStyle( marginDiv, null ).marginRight );
-
-				docElem.removeChild( container );
-				div.removeChild( marginDiv );
-
-				return ret;
-			}
-		});
-	}
-})();
-
-
-// A method for quickly swapping in/out CSS properties to get correct calculations.
-jQuery.swap = function( elem, options, callback, args ) {
-	var ret, name,
-		old = {};
-
-	// Remember the old values, and insert the new ones
-	for ( name in options ) {
-		old[ name ] = elem.style[ name ];
-		elem.style[ name ] = options[ name ];
-	}
-
-	ret = callback.apply( elem, args || [] );
-
-	// Revert the old values
-	for ( name in options ) {
-		elem.style[ name ] = old[ name ];
-	}
-
-	return ret;
-};
-
-
-var
-	// Swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
-	// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
-	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
-	rnumsplit = new RegExp( "^(" + pnum + ")(.*)$", "i" ),
-	rrelNum = new RegExp( "^([+-])=(" + pnum + ")", "i" ),
-
-	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
-	cssNormalTransform = {
-		letterSpacing: "0",
-		fontWeight: "400"
-	},
-
-	cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
-
-// Return a css property mapped to a potentially vendor prefixed property
-function vendorPropName( style, name ) {
-
-	// Shortcut for names that are not vendor prefixed
-	if ( name in style ) {
-		return name;
-	}
-
-	// Check for vendor prefixed names
-	var capName = name[0].toUpperCase() + name.slice(1),
-		origName = name,
-		i = cssPrefixes.length;
-
-	while ( i-- ) {
-		name = cssPrefixes[ i ] + capName;
-		if ( name in style ) {
-			return name;
-		}
-	}
-
-	return origName;
-}
-
-function setPositiveNumber( elem, value, subtract ) {
-	var matches = rnumsplit.exec( value );
-	return matches ?
-		// Guard against undefined "subtract", e.g., when used as in cssHooks
-		Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
-		value;
-}
-
-function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
-	var i = extra === ( isBorderBox ? "border" : "content" ) ?
-		// If we already have the right measurement, avoid augmentation
-		4 :
-		// Otherwise initialize for horizontal or vertical properties
-		name === "width" ? 1 : 0,
-
-		val = 0;
-
-	for ( ; i < 4; i += 2 ) {
-		// Both box models exclude margin, so add it if we want it
-		if ( extra === "margin" ) {
-			val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
-		}
-
-		if ( isBorderBox ) {
-			// border-box includes padding, so remove it if we want content
-			if ( extra === "content" ) {
-				val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-			}
-
-			// At this point, extra isn't border nor margin, so remove border
-			if ( extra !== "margin" ) {
-				val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-			}
-		} else {
-			// At this point, extra isn't content, so add padding
-			val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-
-			// At this point, extra isn't content nor padding, so add border
-			if ( extra !== "padding" ) {
-				val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-			}
-		}
-	}
-
-	return val;
-}
-
-function getWidthOrHeight( elem, name, extra ) {
-
-	// Start with offset property, which is equivalent to the border-box value
-	var valueIsBorderBox = true,
-		val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
-		styles = getStyles( elem ),
-		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
-
-	// Some non-html elements return undefined for offsetWidth, so check for null/undefined
-	// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
-	// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
-	if ( val <= 0 || val == null ) {
-		// Fall back to computed then uncomputed css if necessary
-		val = curCSS( elem, name, styles );
-		if ( val < 0 || val == null ) {
-			val = elem.style[ name ];
-		}
-
-		// Computed unit is not pixels. Stop here and return.
-		if ( rnumnonpx.test(val) ) {
-			return val;
-		}
-
-		// Check for style in case a browser which returns unreliable values
-		// for getComputedStyle silently falls back to the reliable elem.style
-		valueIsBorderBox = isBorderBox &&
-			( support.boxSizingReliable() || val === elem.style[ name ] );
-
-		// Normalize "", auto, and prepare for extra
-		val = parseFloat( val ) || 0;
-	}
-
-	// Use the active box-sizing model to add/subtract irrelevant styles
-	return ( val +
-		augmentWidthOrHeight(
-			elem,
-			name,
-			extra || ( isBorderBox ? "border" : "content" ),
-			valueIsBorderBox,
-			styles
-		)
-	) + "px";
-}
-
-function showHide( elements, show ) {
-	var display, elem, hidden,
-		values = [],
-		index = 0,
-		length = elements.length;
-
-	for ( ; index < length; index++ ) {
-		elem = elements[ index ];
-		if ( !elem.style ) {
-			continue;
-		}
-
-		values[ index ] = data_priv.get( elem, "olddisplay" );
-		display = elem.style.display;
-		if ( show ) {
-			// Reset the inline display of this element to learn if it is
-			// being hidden by cascaded rules or not
-			if ( !values[ index ] && display === "none" ) {
-				elem.style.display = "";
-			}
-
-			// Set elements which have been overridden with display: none
-			// in a stylesheet to whatever the default browser style is
-			// for such an element
-			if ( elem.style.display === "" && isHidden( elem ) ) {
-				values[ index ] = data_priv.access( elem, "olddisplay", defaultDisplay(elem.nodeName) );
-			}
-		} else {
-			hidden = isHidden( elem );
-
-			if ( display !== "none" || !hidden ) {
-				data_priv.set( elem, "olddisplay", hidden ? display : jQuery.css( elem, "display" ) );
-			}
-		}
-	}
-
-	// Set the display of most of the elements in a second loop
-	// to avoid the constant reflow
-	for ( index = 0; index < length; index++ ) {
-		elem = elements[ index ];
-		if ( !elem.style ) {
-			continue;
-		}
-		if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
-			elem.style.display = show ? values[ index ] || "" : "none";
-		}
-	}
-
-	return elements;
-}
-
-jQuery.extend({
-
-	// Add in style property hooks for overriding the default
-	// behavior of getting and setting a style property
-	cssHooks: {
-		opacity: {
-			get: function( elem, computed ) {
-				if ( computed ) {
-
-					// We should always get a number back from opacity
-					var ret = curCSS( elem, "opacity" );
-					return ret === "" ? "1" : ret;
-				}
-			}
-		}
-	},
-
-	// Don't automatically add "px" to these possibly-unitless properties
-	cssNumber: {
-		"columnCount": true,
-		"fillOpacity": true,
-		"flexGrow": true,
-		"flexShrink": true,
-		"fontWeight": true,
-		"lineHeight": true,
-		"opacity": true,
-		"order": true,
-		"orphans": true,
-		"widows": true,
-		"zIndex": true,
-		"zoom": true
-	},
-
-	// Add in properties whose names you wish to fix before
-	// setting or getting the value
-	cssProps: {
-		"float": "cssFloat"
-	},
-
-	// Get and set the style property on a DOM Node
-	style: function( elem, name, value, extra ) {
-
-		// Don't set styles on text and comment nodes
-		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
-			return;
-		}
-
-		// Make sure that we're working with the right name
-		var ret, type, hooks,
-			origName = jQuery.camelCase( name ),
-			style = elem.style;
-
-		name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
-
-		// Gets hook for the prefixed version, then unprefixed version
-		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-		// Check if we're setting a value
-		if ( value !== undefined ) {
-			type = typeof value;
-
-			// Convert "+=" or "-=" to relative numbers (#7345)
-			if ( type === "string" && (ret = rrelNum.exec( value )) ) {
-				value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
-				// Fixes bug #9237
-				type = "number";
-			}
-
-			// Make sure that null and NaN values aren't set (#7116)
-			if ( value == null || value !== value ) {
-				return;
-			}
-
-			// If a number, add 'px' to the (except for certain CSS properties)
-			if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
-				value += "px";
-			}
-
-			// Support: IE9-11+
-			// background-* props affect original clone's values
-			if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
-				style[ name ] = "inherit";
-			}
-
-			// If a hook was provided, use that value, otherwise just set the specified value
-			if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
-				style[ name ] = value;
-			}
-
-		} else {
-			// If a hook was provided get the non-computed value from there
-			if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
-				return ret;
-			}
-
-			// Otherwise just get the value from the style object
-			return style[ name ];
-		}
-	},
-
-	css: function( elem, name, extra, styles ) {
-		var val, num, hooks,
-			origName = jQuery.camelCase( name );
-
-		// Make sure that we're working with the right name
-		name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
-
-		// Try prefixed name followed by the unprefixed name
-		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-		// If a hook was provided get the computed value from there
-		if ( hooks && "get" in hooks ) {
-			val = hooks.get( elem, true, extra );
-		}
-
-		// Otherwise, if a way to get the computed value exists, use that
-		if ( val === undefined ) {
-			val = curCSS( elem, name, styles );
-		}
-
-		// Convert "normal" to computed value
-		if ( val === "normal" && name in cssNormalTransform ) {
-			val = cssNormalTransform[ name ];
-		}
-
-		// Make numeric if forced or a qualifier was provided and val looks numeric
-		if ( extra === "" || extra ) {
-			num = parseFloat( val );
-			return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
-		}
-		return val;
-	}
-});
-
-jQuery.each([ "height", "width" ], function( i, name ) {
-	jQuery.cssHooks[ name ] = {
-		get: function( elem, computed, extra ) {
-			if ( computed ) {
-
-				// Certain elements can have dimension info if we invisibly show them
-				// but it must have a current display style that would benefit
-				return rdisplayswap.test( jQuery.css( elem, "display" ) ) && elem.offsetWidth === 0 ?
-					jQuery.swap( elem, cssShow, function() {
-						return getWidthOrHeight( elem, name, extra );
-					}) :
-					getWidthOrHeight( elem, name, extra );
-			}
-		},
-
-		set: function( elem, value, extra ) {
-			var styles = extra && getStyles( elem );
-			return setPositiveNumber( elem, value, extra ?
-				augmentWidthOrHeight(
-					elem,
-					name,
-					extra,
-					jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
-					styles
-				) : 0
-			);
-		}
-	};
-});
-
-// Support: Android 2.3
-jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
-	function( elem, computed ) {
-		if ( computed ) {
-			return jQuery.swap( elem, { "display": "inline-block" },
-				curCSS, [ elem, "marginRight" ] );
-		}
-	}
-);
-
-// These hooks are used by animate to expand properties
-jQuery.each({
-	margin: "",
-	padding: "",
-	border: "Width"
-}, function( prefix, suffix ) {
-	jQuery.cssHooks[ prefix + suffix ] = {
-		expand: function( value ) {
-			var i = 0,
-				expanded = {},
-
-				// Assumes a single number if not a string
-				parts = typeof value === "string" ? value.split(" ") : [ value ];
-
-			for ( ; i < 4; i++ ) {
-				expanded[ prefix + cssExpand[ i ] + suffix ] =
-					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
-			}
-
-			return expanded;
-		}
-	};
-
-	if ( !rmargin.test( prefix ) ) {
-		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
-	}
-});
-
-jQuery.fn.extend({
-	css: function( name, value ) {
-		return access( this, function( elem, name, value ) {
-			var styles, len,
-				map = {},
-				i = 0;
-
-			if ( jQuery.isArray( name ) ) {
-				styles = getStyles( elem );
-				len = name.length;
-
-				for ( ; i < len; i++ ) {
-					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
-				}
-
-				return map;
-			}
-
-			return value !== undefined ?
-				jQuery.style( elem, name, value ) :
-				jQuery.css( elem, name );
-		}, name, value, arguments.length > 1 );
-	},
-	show: function() {
-		return showHide( this, true );
-	},
-	hide: function() {
-		return showHide( this );
-	},
-	toggle: function( state ) {
-		if ( typeof state === "boolean" ) {
-			return state ? this.show() : this.hide();
-		}
-
-		return this.each(function() {
-			if ( isHidden( this ) ) {
-				jQuery( this ).show();
-			} else {
-				jQuery( this ).hide();
-			}
-		});
-	}
-});
-
-
-function Tween( elem, options, prop, end, easing ) {
-	return new Tween.prototype.init( elem, options, prop, end, easing );
-}
-jQuery.Tween = Tween;
-
-Tween.prototype = {
-	constructor: Tween,
-	init: function( elem, options, prop, end, easing, unit ) {
-		this.elem = elem;
-		this.prop = prop;
-		this.easing = easing || "swing";
-		this.options = options;
-		this.start = this.now = this.cur();
-		this.end = end;
-		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
-	},
-	cur: function() {
-		var hooks = Tween.propHooks[ this.prop ];
-
-		return hooks && hooks.get ?
-			hooks.get( this ) :
-			Tween.propHooks._default.get( this );
-	},
-	run: function( percent ) {
-		var eased,
-			hooks = Tween.propHooks[ this.prop ];
-
-		if ( this.options.duration ) {
-			this.pos = eased = jQuery.easing[ this.easing ](
-				percent, this.options.duration * percent, 0, 1, this.options.duration
-			);
-		} else {
-			this.pos = eased = percent;
-		}
-		this.now = ( this.end - this.start ) * eased + this.start;
-
-		if ( this.options.step ) {
-			this.options.step.call( this.elem, this.now, this );
-		}
-
-		if ( hooks && hooks.set ) {
-			hooks.set( this );
-		} else {
-			Tween.propHooks._default.set( this );
-		}
-		return this;
-	}
-};
-
-Tween.prototype.init.prototype = Tween.prototype;
-
-Tween.propHooks = {
-	_default: {
-		get: function( tween ) {
-			var result;
-
-			if ( tween.elem[ tween.prop ] != null &&
-				(!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {
-				return tween.elem[ tween.prop ];
-			}
-
-			// Passing an empty string as a 3rd parameter to .css will automatically
-			// attempt a parseFloat and fallback to a string if the parse fails.
-			// Simple values such as "10px" are parsed to Float;
-			// complex values such as "rotate(1rad)" are returned as-is.
-			result = jQuery.css( tween.elem, tween.prop, "" );
-			// Empty strings, null, undefined and "auto" are converted to 0.
-			return !result || result === "auto" ? 0 : result;
-		},
-		set: function( tween ) {
-			// Use step hook for back compat.
-			// Use cssHook if its there.
-			// Use .style if available and use plain properties where available.
-			if ( jQuery.fx.step[ tween.prop ] ) {
-				jQuery.fx.step[ tween.prop ]( tween );
-			} else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {
-				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
-			} else {
-				tween.elem[ tween.prop ] = tween.now;
-			}
-		}
-	}
-};
-
-// Support: IE9
-// Panic based approach to setting things on disconnected nodes
-Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
-	set: function( tween ) {
-		if ( tween.elem.nodeType && tween.elem.parentNode ) {
-			tween.elem[ tween.prop ] = tween.now;
-		}
-	}
-};
-
-jQuery.easing = {
-	linear: function( p ) {
-		return p;
-	},
-	swing: function( p ) {
-		return 0.5 - Math.cos( p * Math.PI ) / 2;
-	}
-};
-
-jQuery.fx = Tween.prototype.init;
-
-// Back Compat <1.8 extension point
-jQuery.fx.step = {};
-
-
-
-
-var
-	fxNow, timerId,
-	rfxtypes = /^(?:toggle|show|hide)$/,
-	rfxnum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ),
-	rrun = /queueHooks$/,
-	animationPrefilters = [ defaultPrefilter ],
-	tweeners = {
-		"*": [ function( prop, value ) {
-			var tween = this.createTween( prop, value ),
-				target = tween.cur(),
-				parts = rfxnum.exec( value ),
-				unit = parts && parts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
-
-				// Starting value computation is required for potential unit mismatches
-				start = ( jQuery.cssNumber[ prop ] || unit !== "px" && +target ) &&
-					rfxnum.exec( jQuery.css( tween.elem, prop ) ),
-				scale = 1,
-				maxIterations = 20;
-
-			if ( start && start[ 3 ] !== unit ) {
-				// Trust units reported by jQuery.css
-				unit = unit || start[ 3 ];
-
-				// Make sure we update the tween properties later on
-				parts = parts || [];
-
-				// Iteratively approximate from a nonzero starting point
-				start = +target || 1;
-
-				do {
-					// If previous iteration zeroed out, double until we get *something*.
-					// Use string for doubling so we don't accidentally see scale as unchanged below
-					scale = scale || ".5";
-
-					// Adjust and apply
-					start = start / scale;
-					jQuery.style( tween.elem, prop, start + unit );
-
-				// Update scale, tolerating zero or NaN from tween.cur(),
-				// break the loop if scale is unchanged or perfect, or if we've just had enough
-				} while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
-			}
-
-			// Update tween properties
-			if ( parts ) {
-				start = tween.start = +start || +target || 0;
-				tween.unit = unit;
-				// If a +=/-= token was provided, we're doing a relative animation
-				tween.end = parts[ 1 ] ?
-					start + ( parts[ 1 ] + 1 ) * parts[ 2 ] :
-					+parts[ 2 ];
-			}
-
-			return tween;
-		} ]
-	};
-
-// Animations created synchronously will run synchronously
-function createFxNow() {
-	setTimeout(function() {
-		fxNow = undefined;
-	});
-	return ( fxNow = jQuery.now() );
-}
-
-// Generate parameters to create a standard animation
-function genFx( type, includeWidth ) {
-	var which,
-		i = 0,
-		attrs = { height: type };
-
-	// If we include width, step value is 1 to do all cssExpand values,
-	// otherwise step value is 2 to skip over Left and Right
-	includeWidth = includeWidth ? 1 : 0;
-	for ( ; i < 4 ; i += 2 - includeWidth ) {
-		which = cssExpand[ i ];
-		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
-	}
-
-	if ( includeWidth ) {
-		attrs.opacity = attrs.width = type;
-	}
-
-	return attrs;
-}
-
-function createTween( value, prop, animation ) {
-	var tween,
-		collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),
-		index = 0,
-		length = collection.length;
-	for ( ; index < length; index++ ) {
-		if ( (tween = collection[ index ].call( animation, prop, value )) ) {
-
-			// We're done with this property
-			return tween;
-		}
-	}
-}
-
-function defaultPrefilter( elem, props, opts ) {
-	/* jshint validthis: true */
-	var prop, value, toggle, tween, hooks, oldfire, display, checkDisplay,
-		anim = this,
-		orig = {},
-		style = elem.style,
-		hidden = elem.nodeType && isHidden( elem ),
-		dataShow = data_priv.get( elem, "fxshow" );
-
-	// Handle queue: false promises
-	if ( !opts.queue ) {
-		hooks = jQuery._queueHooks( elem, "fx" );
-		if ( hooks.unqueued == null ) {
-			hooks.unqueued = 0;
-			oldfire = hooks.empty.fire;
-			hooks.empty.fire = function() {
-				if ( !hooks.unqueued ) {
-					oldfire();
-				}
-			};
-		}
-		hooks.unqueued++;
-
-		anim.always(function() {
-			// Ensure the complete handler is called before this completes
-			anim.always(function() {
-				hooks.unqueued--;
-				if ( !jQuery.queue( elem, "fx" ).length ) {
-					hooks.empty.fire();
-				}
-			});
-		});
-	}
-
-	// Height/width overflow pass
-	if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
-		// Make sure that nothing sneaks out
-		// Record all 3 overflow attributes because IE9-10 do not
-		// change the overflow attribute when overflowX and
-		// overflowY are set to the same value
-		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
-
-		// Set display property to inline-block for height/width
-		// animations on inline elements that are having width/height animated
-		display = jQuery.css( elem, "display" );
-
-		// Test default display if display is currently "none"
-		checkDisplay = display === "none" ?
-			data_priv.get( elem, "olddisplay" ) || defaultDisplay( elem.nodeName ) : display;
-
-		if ( checkDisplay === "inline" && jQuery.css( elem, "float" ) === "none" ) {
-			style.display = "inline-block";
-		}
-	}
-
-	if ( opts.overflow ) {
-		style.overflow = "hidden";
-		anim.always(function() {
-			style.overflow = opts.overflow[ 0 ];
-			style.overflowX = opts.overflow[ 1 ];
-			style.overflowY = opts.overflow[ 2 ];
-		});
-	}
-
-	// show/hide pass
-	for ( prop in props ) {
-		value = props[ prop ];
-		if ( rfxtypes.exec( value ) ) {
-			delete props[ prop ];
-			toggle = toggle || value === "toggle";
-			if ( value === ( hidden ? "hide" : "show" ) ) {
-
-				// If there is dataShow left over from a stopped hide or show and we are going to proceed with show, we should pretend to be hidden
-				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
-					hidden = true;
-				} else {
-					continue;
-				}
-			}
-			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
-
-		// Any non-fx value stops us from restoring the original display value
-		} else {
-			display = undefined;
-		}
-	}
-
-	if ( !jQuery.isEmptyObject( orig ) ) {
-		if ( dataShow ) {
-			if ( "hidden" in dataShow ) {
-				hidden = dataShow.hidden;
-			}
-		} else {
-			dataShow = data_priv.access( elem, "fxshow", {} );
-		}
-
-		// Store state if its toggle - enables .stop().toggle() to "reverse"
-		if ( toggle ) {
-			dataShow.hidden = !hidden;
-		}
-		if ( hidden ) {
-			jQuery( elem ).show();
-		} else {
-			anim.done(function() {
-				jQuery( elem ).hide();
-			});
-		}
-		anim.done(function() {
-			var prop;
-
-			data_priv.remove( elem, "fxshow" );
-			for ( prop in orig ) {
-				jQuery.style( elem, prop, orig[ prop ] );
-			}
-		});
-		for ( prop in orig ) {
-			tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
-
-			if ( !( prop in dataShow ) ) {
-				dataShow[ prop ] = tween.start;
-				if ( hidden ) {
-					tween.end = tween.start;
-					tween.start = prop === "width" || prop === "height" ? 1 : 0;
-				}
-			}
-		}
-
-	// If this is a noop like .hide().hide(), restore an overwritten display value
-	} else if ( (display === "none" ? defaultDisplay( elem.nodeName ) : display) === "inline" ) {
-		style.display = display;
-	}
-}
-
-function propFilter( props, specialEasing ) {
-	var index, name, easing, value, hooks;
-
-	// camelCase, specialEasing and expand cssHook pass
-	for ( index in props ) {
-		name = jQuery.camelCase( index );
-		easing = specialEasing[ name ];
-		value = props[ index ];
-		if ( jQuery.isArray( value ) ) {
-			easing = value[ 1 ];
-			value = props[ index ] = value[ 0 ];
-		}
-
-		if ( index !== name ) {
-			props[ name ] = value;
-			delete props[ index ];
-		}
-
-		hooks = jQuery.cssHooks[ name ];
-		if ( hooks && "expand" in hooks ) {
-			value = hooks.expand( value );
-			delete props[ name ];
-
-			// Not quite $.extend, this won't overwrite existing keys.
-			// Reusing 'index' because we have the correct "name"
-			for ( index in value ) {
-				if ( !( index in props ) ) {
-					props[ index ] = value[ index ];
-					specialEasing[ index ] = easing;
-				}
-			}
-		} else {
-			specialEasing[ name ] = easing;
-		}
-	}
-}
-
-function Animation( elem, properties, options ) {
-	var result,
-		stopped,
-		index = 0,
-		length = animationPrefilters.length,
-		deferred = jQuery.Deferred().always( function() {
-			// Don't match elem in the :animated selector
-			delete tick.elem;
-		}),
-		tick = function() {
-			if ( stopped ) {
-				return false;
-			}
-			var currentTime = fxNow || createFxNow(),
-				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
-				// Support: Android 2.3
-				// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
-				temp = remaining / animation.duration || 0,
-				percent = 1 - temp,
-				index = 0,
-				length = animation.tweens.length;
-
-			for ( ; index < length ; index++ ) {
-				animation.tweens[ index ].run( percent );
-			}
-
-			deferred.notifyWith( elem, [ animation, percent, remaining ]);
-
-			if ( percent < 1 && length ) {
-				return remaining;
-			} else {
-				deferred.resolveWith( elem, [ animation ] );
-				return false;
-			}
-		},
-		animation = deferred.promise({
-			elem: elem,
-			props: jQuery.extend( {}, properties ),
-			opts: jQuery.extend( true, { specialEasing: {} }, options ),
-			originalProperties: properties,
-			originalOptions: options,
-			startTime: fxNow || createFxNow(),
-			duration: options.duration,
-			tweens: [],
-			createTween: function( prop, end ) {
-				var tween = jQuery.Tween( elem, animation.opts, prop, end,
-						animation.opts.specialEasing[ prop ] || animation.opts.easing );
-				animation.tweens.push( tween );
-				return tween;
-			},
-			stop: function( gotoEnd ) {
-				var index = 0,
-					// If we are going to the end, we want to run all the tweens
-					// otherwise we skip this part
-					length = gotoEnd ? animation.tweens.length : 0;
-				if ( stopped ) {
-					return this;
-				}
-				stopped = true;
-				for ( ; index < length ; index++ ) {
-					animation.tweens[ index ].run( 1 );
-				}
-
-				// Resolve when we played the last frame; otherwise, reject
-				if ( gotoEnd ) {
-					deferred.resolveWith( elem, [ animation, gotoEnd ] );
-				} else {
-					deferred.rejectWith( elem, [ animation, gotoEnd ] );
-				}
-				return this;
-			}
-		}),
-		props = animation.props;
-
-	propFilter( props, animation.opts.specialEasing );
-
-	for ( ; index < length ; index++ ) {
-		result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
-		if ( result ) {
-			return result;
-		}
-	}
-
-	jQuery.map( props, createTween, animation );
-
-	if ( jQuery.isFunction( animation.opts.start ) ) {
-		animation.opts.start.call( elem, animation );
-	}
-
-	jQuery.fx.timer(
-		jQuery.extend( tick, {
-			elem: elem,
-			anim: animation,
-			queue: animation.opts.queue
-		})
-	);
-
-	// attach callbacks from options
-	return animation.progress( animation.opts.progress )
-		.done( animation.opts.done, animation.opts.complete )
-		.fail( animation.opts.fail )
-		.always( animation.opts.always );
-}
-
-jQuery.Animation = jQuery.extend( Animation, {
-
-	tweener: function( props, callback ) {
-		if ( jQuery.isFunction( props ) ) {
-			callback = props;
-			props = [ "*" ];
-		} else {
-			props = props.split(" ");
-		}
-
-		var prop,
-			index = 0,
-			length = props.length;
-
-		for ( ; index < length ; index++ ) {
-			prop = props[ index ];
-			tweeners[ prop ] = tweeners[ prop ] || [];
-			tweeners[ prop ].unshift( callback );
-		}
-	},
-
-	prefilter: function( callback, prepend ) {
-		if ( prepend ) {
-			animationPrefilters.unshift( callback );
-		} else {
-			animationPrefilters.push( callback );
-		}
-	}
-});
-
-jQuery.speed = function( speed, easing, fn ) {
-	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
-		complete: fn || !fn && easing ||
-			jQuery.isFunction( speed ) && speed,
-		duration: speed,
-		easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
-	};
-
-	opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
-		opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
-
-	// Normalize opt.queue - true/undefined/null -> "fx"
-	if ( opt.queue == null || opt.queue === true ) {
-		opt.queue = "fx";
-	}
-
-	// Queueing
-	opt.old = opt.complete;
-
-	opt.complete = function() {
-		if ( jQuery.isFunction( opt.old ) ) {
-			opt.old.call( this );
-		}
-
-		if ( opt.queue ) {
-			jQuery.dequeue( this, opt.queue );
-		}
-	};
-
-	return opt;
-};
-
-jQuery.fn.extend({
-	fadeTo: function( speed, to, easing, callback ) {
-
-		// Show any hidden elements after setting opacity to 0
-		return this.filter( isHidden ).css( "opacity", 0 ).show()
-
-			// Animate to the value specified
-			.end().animate({ opacity: to }, speed, easing, callback );
-	},
-	animate: function( prop, speed, easing, callback ) {
-		var empty = jQuery.isEmptyObject( prop ),
-			optall = jQuery.speed( speed, easing, callback ),
-			doAnimation = function() {
-				// Operate on a copy of prop so per-property easing won't be lost
-				var anim = Animation( this, jQuery.extend( {}, prop ), optall );
-
-				// Empty animations, or finishing resolves immediately
-				if ( empty || data_priv.get( this, "finish" ) ) {
-					anim.stop( true );
-				}
-			};
-			doAnimation.finish = doAnimation;
-
-		return empty || optall.queue === false ?
-			this.each( doAnimation ) :
-			this.queue( optall.queue, doAnimation );
-	},
-	stop: function( type, clearQueue, gotoEnd ) {
-		var stopQueue = function( hooks ) {
-			var stop = hooks.stop;
-			delete hooks.stop;
-			stop( gotoEnd );
-		};
-
-		if ( typeof type !== "string" ) {
-			gotoEnd = clearQueue;
-			clearQueue = type;
-			type = undefined;
-		}
-		if ( clearQueue && type !== false ) {
-			this.queue( type || "fx", [] );
-		}
-
-		return this.each(function() {
-			var dequeue = true,
-				index = type != null && type + "queueHooks",
-				timers = jQuery.timers,
-				data = data_priv.get( this );
-
-			if ( index ) {
-				if ( data[ index ] && data[ index ].stop ) {
-					stopQueue( data[ index ] );
-				}
-			} else {
-				for ( index in data ) {
-					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
-						stopQueue( data[ index ] );
-					}
-				}
-			}
-
-			for ( index = timers.length; index--; ) {
-				if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
-					timers[ index ].anim.stop( gotoEnd );
-					dequeue = false;
-					timers.splice( index, 1 );
-				}
-			}
-
-			// Start the next in the queue if the last step wasn't forced.
-			// Timers currently will call their complete callbacks, which
-			// will dequeue but only if they were gotoEnd.
-			if ( dequeue || !gotoEnd ) {
-				jQuery.dequeue( this, type );
-			}
-		});
-	},
-	finish: function( type ) {
-		if ( type !== false ) {
-			type = type || "fx";
-		}
-		return this.each(function() {
-			var index,
-				data = data_priv.get( this ),
-				queue = data[ type + "queue" ],
-				hooks = data[ type + "queueHooks" ],
-				timers = jQuery.timers,
-				length = queue ? queue.length : 0;
-
-			// Enable finishing flag on private data
-			data.finish = true;
-
-			// Empty the queue first
-			jQuery.queue( this, type, [] );
-
-			if ( hooks && hooks.stop ) {
-				hooks.stop.call( this, true );
-			}
-
-			// Look for any active animations, and finish them
-			for ( index = timers.length; index--; ) {
-				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
-					timers[ index ].anim.stop( true );
-					timers.splice( index, 1 );
-				}
-			}
-
-			// Look for any animations in the old queue and finish them
-			for ( index = 0; index < length; index++ ) {
-				if ( queue[ index ] && queue[ index ].finish ) {
-					queue[ index ].finish.call( this );
-				}
-			}
-
-			// Turn off finishing flag
-			delete data.finish;
-		});
-	}
-});
-
-jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {
-	var cssFn = jQuery.fn[ name ];
-	jQuery.fn[ name ] = function( speed, easing, callback ) {
-		return speed == null || typeof speed === "boolean" ?
-			cssFn.apply( this, arguments ) :
-			this.animate( genFx( name, true ), speed, easing, callback );
-	};
-});
-
-// Generate shortcuts for custom animations
-jQuery.each({
-	slideDown: genFx("show"),
-	slideUp: genFx("hide"),
-	slideToggle: genFx("toggle"),
-	fadeIn: { opacity: "show" },
-	fadeOut: { opacity: "hide" },
-	fadeToggle: { opacity: "toggle" }
-}, function( name, props ) {
-	jQuery.fn[ name ] = function( speed, easing, callback ) {
-		return this.animate( props, speed, easing, callback );
-	};
-});
-
-jQuery.timers = [];
-jQuery.fx.tick = function() {
-	var timer,
-		i = 0,
-		timers = jQuery.timers;
-
-	fxNow = jQuery.now();
-
-	for ( ; i < timers.length; i++ ) {
-		timer = timers[ i ];
-		// Checks the timer has not already been removed
-		if ( !timer() && timers[ i ] === timer ) {
-			timers.splice( i--, 1 );
-		}
-	}
-
-	if ( !timers.length ) {
-		jQuery.fx.stop();
-	}
-	fxNow = undefined;
-};
-
-jQuery.fx.timer = function( timer ) {
-	jQuery.timers.push( timer );
-	if ( timer() ) {
-		jQuery.fx.start();
-	} else {
-		jQuery.timers.pop();
-	}
-};
-
-jQuery.fx.interval = 13;
-
-jQuery.fx.start = function() {
-	if ( !timerId ) {
-		timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
-	}
-};
-
-jQuery.fx.stop = function() {
-	clearInterval( timerId );
-	timerId = null;
-};
-
-jQuery.fx.speeds = {
-	slow: 600,
-	fast: 200,
-	// Default speed
-	_default: 400
-};
-
-
-// Based off of the plugin by Clint Helfers, with permission.
-// http://blindsignals.com/index.php/2009/07/jquery-delay/
-jQuery.fn.delay = function( time, type ) {
-	time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
-	type = type || "fx";
-
-	return this.queue( type, function( next, hooks ) {
-		var timeout = setTimeout( next, time );
-		hooks.stop = function() {
-			clearTimeout( timeout );
-		};
-	});
-};
-
-
-(function() {
-	var input = document.createElement( "input" ),
-		select = document.createElement( "select" ),
-		opt = select.appendChild( document.createElement( "option" ) );
-
-	input.type = "checkbox";
-
-	// Support: iOS<=5.1, Android<=4.2+
-	// Default value for a checkbox should be "on"
-	support.checkOn = input.value !== "";
-
-	// Support: IE<=11+
-	// Must access selectedIndex to make default options select
-	support.optSelected = opt.selected;
-
-	// Support: Android<=2.3
-	// Options inside disabled selects are incorrectly marked as disabled
-	select.disabled = true;
-	support.optDisabled = !opt.disabled;
-
-	// Support: IE<=11+
-	// An input loses its value after becoming a radio
-	input = document.createElement( "input" );
-	input.value = "t";
-	input.type = "radio";
-	support.radioValue = input.value === "t";
-})();
-
-
-var nodeHook, boolHook,
-	attrHandle = jQuery.expr.attrHandle;
-
-jQuery.fn.extend({
-	attr: function( name, value ) {
-		return access( this, jQuery.attr, name, value, arguments.length > 1 );
-	},
-
-	removeAttr: function( name ) {
-		return this.each(function() {
-			jQuery.removeAttr( this, name );
-		});
-	}
-});
-
-jQuery.extend({
-	attr: function( elem, name, value ) {
-		var hooks, ret,
-			nType = elem.nodeType;
-
-		// don't get/set attributes on text, comment and attribute nodes
-		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
-			return;
-		}
-
-		// Fallback to prop when attributes are not supported
-		if ( typeof elem.getAttribute === strundefined ) {
-			return jQuery.prop( elem, name, value );
-		}
-
-		// All attributes are lowercase
-		// Grab necessary hook if one is defined
-		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
-			name = name.toLowerCase();
-			hooks = jQuery.attrHooks[ name ] ||
-				( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
-		}
-
-		if ( value !== undefined ) {
-
-			if ( value === null ) {
-				jQuery.removeAttr( elem, name );
-
-			} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
-				return ret;
-
-			} else {
-				elem.setAttribute( name, value + "" );
-				return value;
-			}
-
-		} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
-			return ret;
-
-		} else {
-			ret = jQuery.find.attr( elem, name );
-
-			// Non-existent attributes return null, we normalize to undefined
-			return ret == null ?
-				undefined :
-				ret;
-		}
-	},
-
-	removeAttr: function( elem, value ) {
-		var name, propName,
-			i = 0,
-			attrNames = value && value.match( rnotwhite );
-
-		if ( attrNames && elem.nodeType === 1 ) {
-			while ( (name = attrNames[i++]) ) {
-				propName = jQuery.propFix[ name ] || name;
-
-				// Boolean attributes get special treatment (#10870)
-				if ( jQuery.expr.match.bool.test( name ) ) {
-					// Set corresponding property to false
-					elem[ propName ] = false;
-				}
-
-				elem.removeAttribute( name );
-			}
-		}
-	},
-
-	attrHooks: {
-		type: {
-			set: function( elem, value ) {
-				if ( !support.radioValue && value === "radio" &&
-					jQuery.nodeName( elem, "input" ) ) {
-					var val = elem.value;
-					elem.setAttribute( "type", value );
-					if ( val ) {
-						elem.value = val;
-					}
-					return value;
-				}
-			}
-		}
-	}
-});
-
-// Hooks for boolean attributes
-boolHook = {
-	set: function( elem, value, name ) {
-		if ( value === false ) {
-			// Remove boolean attributes when set to false
-			jQuery.removeAttr( elem, name );
-		} else {
-			elem.setAttribute( name, name );
-		}
-		return name;
-	}
-};
-jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
-	var getter = attrHandle[ name ] || jQuery.find.attr;
-
-	attrHandle[ name ] = function( elem, name, isXML ) {
-		var ret, handle;
-		if ( !isXML ) {
-			// Avoid an infinite loop by temporarily removing this function from the getter
-			handle = attrHandle[ name ];
-			attrHandle[ name ] = ret;
-			ret = getter( elem, name, isXML ) != null ?
-				name.toLowerCase() :
-				null;
-			attrHandle[ name ] = handle;
-		}
-		return ret;
-	};
-});
-
-
-
-
-var rfocusable = /^(?:input|select|textarea|button)$/i;
-
-jQuery.fn.extend({
-	prop: function( name, value ) {
-		return access( this, jQuery.prop, name, value, arguments.length > 1 );
-	},
-
-	removeProp: function( name ) {
-		return this.each(function() {
-			delete this[ jQuery.propFix[ name ] || name ];
-		});
-	}
-});
-
-jQuery.extend({
-	propFix: {
-		"for": "htmlFor",
-		"class": "className"
-	},
-
-	prop: function( elem, name, value ) {
-		var ret, hooks, notxml,
-			nType = elem.nodeType;
-
-		// Don't get/set properties on text, comment and attribute nodes
-		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
-			return;
-		}
-
-		notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
-
-		if ( notxml ) {
-			// Fix name and attach hooks
-			name = jQuery.propFix[ name ] || name;
-			hooks = jQuery.propHooks[ name ];
-		}
-
-		if ( value !== undefined ) {
-			return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
-				ret :
-				( elem[ name ] = value );
-
-		} else {
-			return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
-				ret :
-				elem[ name ];
-		}
-	},
-
-	propHooks: {
-		tabIndex: {
-			get: function( elem ) {
-				return elem.hasAttribute( "tabindex" ) || rfocusable.test( elem.nodeName ) || elem.href ?
-					elem.tabIndex :
-					-1;
-			}
-		}
-	}
-});
-
-if ( !support.optSelected ) {
-	jQuery.propHooks.selected = {
-		get: function( elem ) {
-			var parent = elem.parentNode;
-			if ( parent && parent.parentNode ) {
-				parent.parentNode.selectedIndex;
-			}
-			return null;
-		}
-	};
-}
-
-jQuery.each([
-	"tabIndex",
-	"readOnly",
-	"maxLength",
-	"cellSpacing",
-	"cellPadding",
-	"rowSpan",
-	"colSpan",
-	"useMap",
-	"frameBorder",
-	"contentEditable"
-], function() {
-	jQuery.propFix[ this.toLowerCase() ] = this;
-});
-
-
-
-
-var rclass = /[\t\r\n\f]/g;
-
-jQuery.fn.extend({
-	addClass: function( value ) {
-		var classes, elem, cur, clazz, j, finalValue,
-			proceed = typeof value === "string" && value,
-			i = 0,
-			len = this.length;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( j ) {
-				jQuery( this ).addClass( value.call( this, j, this.className ) );
-			});
-		}
-
-		if ( proceed ) {
-			// The disjunction here is for better compressibility (see removeClass)
-			classes = ( value || "" ).match( rnotwhite ) || [];
-
-			for ( ; i < len; i++ ) {
-				elem = this[ i ];
-				cur = elem.nodeType === 1 && ( elem.className ?
-					( " " + elem.className + " " ).replace( rclass, " " ) :
-					" "
-				);
-
-				if ( cur ) {
-					j = 0;
-					while ( (clazz = classes[j++]) ) {
-						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
-							cur += clazz + " ";
-						}
-					}
-
-					// only assign if different to avoid unneeded rendering.
-					finalValue = jQuery.trim( cur );
-					if ( elem.className !== finalValue ) {
-						elem.className = finalValue;
-					}
-				}
-			}
-		}
-
-		return this;
-	},
-
-	removeClass: function( value ) {
-		var classes, elem, cur, clazz, j, finalValue,
-			proceed = arguments.length === 0 || typeof value === "string" && value,
-			i = 0,
-			len = this.length;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( j ) {
-				jQuery( this ).removeClass( value.call( this, j, this.className ) );
-			});
-		}
-		if ( proceed ) {
-			classes = ( value || "" ).match( rnotwhite ) || [];
-
-			for ( ; i < len; i++ ) {
-				elem = this[ i ];
-				// This expression is here for better compressibility (see addClass)
-				cur = elem.nodeType === 1 && ( elem.className ?
-					( " " + elem.className + " " ).replace( rclass, " " ) :
-					""
-				);
-
-				if ( cur ) {
-					j = 0;
-					while ( (clazz = classes[j++]) ) {
-						// Remove *all* instances
-						while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
-							cur = cur.replace( " " + clazz + " ", " " );
-						}
-					}
-
-					// Only assign if different to avoid unneeded rendering.
-					finalValue = value ? jQuery.trim( cur ) : "";
-					if ( elem.className !== finalValue ) {
-						elem.className = finalValue;
-					}
-				}
-			}
-		}
-
-		return this;
-	},
-
-	toggleClass: function( value, stateVal ) {
-		var type = typeof value;
-
-		if ( typeof stateVal === "boolean" && type === "string" ) {
-			return stateVal ? this.addClass( value ) : this.removeClass( value );
-		}
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( i ) {
-				jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
-			});
-		}
-
-		return this.each(function() {
-			if ( type === "string" ) {
-				// Toggle individual class names
-				var className,
-					i = 0,
-					self = jQuery( this ),
-					classNames = value.match( rnotwhite ) || [];
-
-				while ( (className = classNames[ i++ ]) ) {
-					// Check each className given, space separated list
-					if ( self.hasClass( className ) ) {
-						self.removeClass( className );
-					} else {
-						self.addClass( className );
-					}
-				}
-
-			// Toggle whole class name
-			} else if ( type === strundefined || type === "boolean" ) {
-				if ( this.className ) {
-					// store className if set
-					data_priv.set( this, "__className__", this.className );
-				}
-
-				// If the element has a class name or if we're passed `false`,
-				// then remove the whole classname (if there was one, the above saved it).
-				// Otherwise bring back whatever was previously saved (if anything),
-				// falling back to the empty string if nothing was stored.
-				this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";
-			}
-		});
-	},
-
-	hasClass: function( selector ) {
-		var className = " " + selector + " ",
-			i = 0,
-			l = this.length;
-		for ( ; i < l; i++ ) {
-			if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
-				return true;
-			}
-		}
-
-		return false;
-	}
-});
-
-
-
-
-var rreturn = /\r/g;
-
-jQuery.fn.extend({
-	val: function( value ) {
-		var hooks, ret, isFunction,
-			elem = this[0];
-
-		if ( !arguments.length ) {
-			if ( elem ) {
-				hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
-
-				if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
-					return ret;
-				}
-
-				ret = elem.value;
-
-				return typeof ret === "string" ?
-					// Handle most common string cases
-					ret.replace(rreturn, "") :
-					// Handle cases where value is null/undef or number
-					ret == null ? "" : ret;
-			}
-
-			return;
-		}
-
-		isFunction = jQuery.isFunction( value );
-
-		return this.each(function( i ) {
-			var val;
-
-			if ( this.nodeType !== 1 ) {
-				return;
-			}
-
-			if ( isFunction ) {
-				val = value.call( this, i, jQuery( this ).val() );
-			} else {
-				val = value;
-			}
-
-			// Treat null/undefined as ""; convert numbers to string
-			if ( val == null ) {
-				val = "";
-
-			} else if ( typeof val === "number" ) {
-				val += "";
-
-			} else if ( jQuery.isArray( val ) ) {
-				val = jQuery.map( val, function( value ) {
-					return value == null ? "" : value + "";
-				});
-			}
-
-			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
-
-			// If set returns undefined, fall back to normal setting
-			if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
-				this.value = val;
-			}
-		});
-	}
-});
-
-jQuery.extend({
-	valHooks: {
-		option: {
-			get: function( elem ) {
-				var val = jQuery.find.attr( elem, "value" );
-				return val != null ?
-					val :
-					// Support: IE10-11+
-					// option.text throws exceptions (#14686, #14858)
-					jQuery.trim( jQuery.text( elem ) );
-			}
-		},
-		select: {
-			get: function( elem ) {
-				var value, option,
-					options = elem.options,
-					index = elem.selectedIndex,
-					one = elem.type === "select-one" || index < 0,
-					values = one ? null : [],
-					max = one ? index + 1 : options.length,
-					i = index < 0 ?
-						max :
-						one ? index : 0;
-
-				// Loop through all the selected options
-				for ( ; i < max; i++ ) {
-					option = options[ i ];
-
-					// IE6-9 doesn't update selected after form reset (#2551)
-					if ( ( option.selected || i === index ) &&
-							// Don't return options that are disabled or in a disabled optgroup
-							( support.optDisabled ? !option.disabled : option.getAttribute( "disabled" ) === null ) &&
-							( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
-
-						// Get the specific value for the option
-						value = jQuery( option ).val();
-
-						// We don't need an array for one selects
-						if ( one ) {
-							return value;
-						}
-
-						// Multi-Selects return an array
-						values.push( value );
-					}
-				}
-
-				return values;
-			},
-
-			set: function( elem, value ) {
-				var optionSet, option,
-					options = elem.options,
-					values = jQuery.makeArray( value ),
-					i = options.length;
-
-				while ( i-- ) {
-					option = options[ i ];
-					if ( (option.selected = jQuery.inArray( option.value, values ) >= 0) ) {
-						optionSet = true;
-					}
-				}
-
-				// Force browsers to behave consistently when non-matching value is set
-				if ( !optionSet ) {
-					elem.selectedIndex = -1;
-				}
-				return values;
-			}
-		}
-	}
-});
-
-// Radios and checkboxes getter/setter
-jQuery.each([ "radio", "checkbox" ], function() {
-	jQuery.valHooks[ this ] = {
-		set: function( elem, value ) {
-			if ( jQuery.isArray( value ) ) {
-				return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
-			}
-		}
-	};
-	if ( !support.checkOn ) {
-		jQuery.valHooks[ this ].get = function( elem ) {
-			return elem.getAttribute("value") === null ? "on" : elem.value;
-		};
-	}
-});
-
-
-
-
-// Return jQuery for attributes-only inclusion
-
-
-jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
-	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
-	"change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {
-
-	// Handle event binding
-	jQuery.fn[ name ] = function( data, fn ) {
-		return arguments.length > 0 ?
-			this.on( name, null, data, fn ) :
-			this.trigger( name );
-	};
-});
-
-jQuery.fn.extend({
-	hover: function( fnOver, fnOut ) {
-		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
-	},
-
-	bind: function( types, data, fn ) {
-		return this.on( types, null, data, fn );
-	},
-	unbind: function( types, fn ) {
-		return this.off( types, null, fn );
-	},
-
-	delegate: function( selector, types, data, fn ) {
-		return this.on( types, selector, data, fn );
-	},
-	undelegate: function( selector, types, fn ) {
-		// ( namespace ) or ( selector, types [, fn] )
-		return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
-	}
-});
-
-
-var nonce = jQuery.now();
-
-var rquery = (/\?/);
-
-
-
-// Support: Android 2.3
-// Workaround failure to string-cast null input
-jQuery.parseJSON = function( data ) {
-	return JSON.parse( data + "" );
-};
-
-
-// Cross-browser xml parsing
-jQuery.parseXML = function( data ) {
-	var xml, tmp;
-	if ( !data || typeof data !== "string" ) {
-		return null;
-	}
-
-	// Support: IE9
-	try {
-		tmp = new DOMParser();
-		xml = tmp.parseFromString( data, "text/xml" );
-	} catch ( e ) {
-		xml = undefined;
-	}
-
-	if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
-		jQuery.error( "Invalid XML: " + data );
-	}
-	return xml;
-};
-
-
-var
-	rhash = /#.*$/,
-	rts = /([?&])_=[^&]*/,
-	rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
-	// #7653, #8125, #8152: local protocol detection
-	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
-	rnoContent = /^(?:GET|HEAD)$/,
-	rprotocol = /^\/\//,
-	rurl = /^([\w.+-]+:)(?:\/\/(?:[^\/?#]*@|)([^\/?#:]*)(?::(\d+)|)|)/,
-
-	/* Prefilters
-	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
-	 * 2) These are called:
-	 *    - BEFORE asking for a transport
-	 *    - AFTER param serialization (s.data is a string if s.processData is true)
-	 * 3) key is the dataType
-	 * 4) the catchall symbol "*" can be used
-	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
-	 */
-	prefilters = {},
-
-	/* Transports bindings
-	 * 1) key is the dataType
-	 * 2) the catchall symbol "*" can be used
-	 * 3) selection will start with transport dataType and THEN go to "*" if needed
-	 */
-	transports = {},
-
-	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
-	allTypes = "*/".concat( "*" ),
-
-	// Document location
-	ajaxLocation = window.location.href,
-
-	// Segment location into parts
-	ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
-
-// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
-function addToPrefiltersOrTransports( structure ) {
-
-	// dataTypeExpression is optional and defaults to "*"
-	return function( dataTypeExpression, func ) {
-
-		if ( typeof dataTypeExpression !== "string" ) {
-			func = dataTypeExpression;
-			dataTypeExpression = "*";
-		}
-
-		var dataType,
-			i = 0,
-			dataTypes = dataTypeExpression.toLowerCase().match( rnotwhite ) || [];
-
-		if ( jQuery.isFunction( func ) ) {
-			// For each dataType in the dataTypeExpression
-			while ( (dataType = dataTypes[i++]) ) {
-				// Prepend if requested
-				if ( dataType[0] === "+" ) {
-					dataType = dataType.slice( 1 ) || "*";
-					(structure[ dataType ] = structure[ dataType ] || []).unshift( func );
-
-				// Otherwise append
-				} else {
-					(structure[ dataType ] = structure[ dataType ] || []).push( func );
-				}
-			}
-		}
-	};
-}
-
-// Base inspection function for prefilters and transports
-function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
-
-	var inspected = {},
-		seekingTransport = ( structure === transports );
-
-	function inspect( dataType ) {
-		var selected;
-		inspected[ dataType ] = true;
-		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
-			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
-			if ( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
-				options.dataTypes.unshift( dataTypeOrTransport );
-				inspect( dataTypeOrTransport );
-				return false;
-			} else if ( seekingTransport ) {
-				return !( selected = dataTypeOrTransport );
-			}
-		});
-		return selected;
-	}
-
-	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
-}
-
-// A special extend for ajax options
-// that takes "flat" options (not to be deep extended)
-// Fixes #9887
-function ajaxExtend( target, src ) {
-	var key, deep,
-		flatOptions = jQuery.ajaxSettings.flatOptions || {};
-
-	for ( key in src ) {
-		if ( src[ key ] !== undefined ) {
-			( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];
-		}
-	}
-	if ( deep ) {
-		jQuery.extend( true, target, deep );
-	}
-
-	return target;
-}
-
-/* Handles responses to an ajax request:
- * - finds the right dataType (mediates between content-type and expected dataType)
- * - returns the corresponding response
- */
-function ajaxHandleResponses( s, jqXHR, responses ) {
-
-	var ct, type, finalDataType, firstDataType,
-		contents = s.contents,
-		dataTypes = s.dataTypes;
-
-	// Remove auto dataType and get content-type in the process
-	while ( dataTypes[ 0 ] === "*" ) {
-		dataTypes.shift();
-		if ( ct === undefined ) {
-			ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
-		}
-	}
-
-	// Check if we're dealing with a known content-type
-	if ( ct ) {
-		for ( type in contents ) {
-			if ( contents[ type ] && contents[ type ].test( ct ) ) {
-				dataTypes.unshift( type );
-				break;
-			}
-		}
-	}
-
-	// Check to see if we have a response for the expected dataType
-	if ( dataTypes[ 0 ] in responses ) {
-		finalDataType = dataTypes[ 0 ];
-	} else {
-		// Try convertible dataTypes
-		for ( type in responses ) {
-			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
-				finalDataType = type;
-				break;
-			}
-			if ( !firstDataType ) {
-				firstDataType = type;
-			}
-		}
-		// Or just use first one
-		finalDataType = finalDataType || firstDataType;
-	}
-
-	// If we found a dataType
-	// We add the dataType to the list if needed
-	// and return the corresponding response
-	if ( finalDataType ) {
-		if ( finalDataType !== dataTypes[ 0 ] ) {
-			dataTypes.unshift( finalDataType );
-		}
-		return responses[ finalDataType ];
-	}
-}
-
-/* Chain conversions given the request and the original response
- * Also sets the responseXXX fields on the jqXHR instance
- */
-function ajaxConvert( s, response, jqXHR, isSuccess ) {
-	var conv2, current, conv, tmp, prev,
-		converters = {},
-		// Work with a copy of dataTypes in case we need to modify it for conversion
-		dataTypes = s.dataTypes.slice();
-
-	// Create converters map with lowercased keys
-	if ( dataTypes[ 1 ] ) {
-		for ( conv in s.converters ) {
-			converters[ conv.toLowerCase() ] = s.converters[ conv ];
-		}
-	}
-
-	current = dataTypes.shift();
-
-	// Convert to each sequential dataType
-	while ( current ) {
-
-		if ( s.responseFields[ current ] ) {
-			jqXHR[ s.responseFields[ current ] ] = response;
-		}
-
-		// Apply the dataFilter if provided
-		if ( !prev && isSuccess && s.dataFilter ) {
-			response = s.dataFilter( response, s.dataType );
-		}
-
-		prev = current;
-		current = dataTypes.shift();
-
-		if ( current ) {
-
-		// There's only work to do if current dataType is non-auto
-			if ( current === "*" ) {
-
-				current = prev;
-
-			// Convert response if prev dataType is non-auto and differs from current
-			} else if ( prev !== "*" && prev !== current ) {
-
-				// Seek a direct converter
-				conv = converters[ prev + " " + current ] || converters[ "* " + current ];
-
-				// If none found, seek a pair
-				if ( !conv ) {
-					for ( conv2 in converters ) {
-
-						// If conv2 outputs current
-						tmp = conv2.split( " " );
-						if ( tmp[ 1 ] === current ) {
-
-							// If prev can be converted to accepted input
-							conv = converters[ prev + " " + tmp[ 0 ] ] ||
-								converters[ "* " + tmp[ 0 ] ];
-							if ( conv ) {
-								// Condense equivalence converters
-								if ( conv === true ) {
-									conv = converters[ conv2 ];
-
-								// Otherwise, insert the intermediate dataType
-								} else if ( converters[ conv2 ] !== true ) {
-									current = tmp[ 0 ];
-									dataTypes.unshift( tmp[ 1 ] );
-								}
-								break;
-							}
-						}
-					}
-				}
-
-				// Apply converter (if not an equivalence)
-				if ( conv !== true ) {
-
-					// Unless errors are allowed to bubble, catch and return them
-					if ( conv && s[ "throws" ] ) {
-						response = conv( response );
-					} else {
-						try {
-							response = conv( response );
-						} catch ( e ) {
-							return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };
-						}
-					}
-				}
-			}
-		}
-	}
-
-	return { state: "success", data: response };
-}
-
-jQuery.extend({
-
-	// Counter for holding the number of active queries
-	active: 0,
-
-	// Last-Modified header cache for next request
-	lastModified: {},
-	etag: {},
-
-	ajaxSettings: {
-		url: ajaxLocation,
-		type: "GET",
-		isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
-		global: true,
-		processData: true,
-		async: true,
-		contentType: "application/x-www-form-urlencoded; charset=UTF-8",
-		/*
-		timeout: 0,
-		data: null,
-		dataType: null,
-		username: null,
-		password: null,
-		cache: null,
-		throws: false,
-		traditional: false,
-		headers: {},
-		*/
-
-		accepts: {
-			"*": allTypes,
-			text: "text/plain",
-			html: "text/html",
-			xml: "application/xml, text/xml",
-			json: "application/json, text/javascript"
-		},
-
-		contents: {
-			xml: /xml/,
-			html: /html/,
-			json: /json/
-		},
-
-		responseFields: {
-			xml: "responseXML",
-			text: "responseText",
-			json: "responseJSON"
-		},
-
-		// Data converters
-		// Keys separate source (or catchall "*") and destination types with a single space
-		converters: {
-
-			// Convert anything to text
-			"* text": String,
-
-			// Text to html (true = no transformation)
-			"text html": true,
-
-			// Evaluate text as a json expression
-			"text json": jQuery.parseJSON,
-
-			// Parse text as xml
-			"text xml": jQuery.parseXML
-		},
-
-		// For options that shouldn't be deep extended:
-		// you can add your own custom options here if
-		// and when you create one that shouldn't be
-		// deep extended (see ajaxExtend)
-		flatOptions: {
-			url: true,
-			context: true
-		}
-	},
-
-	// Creates a full fledged settings object into target
-	// with both ajaxSettings and settings fields.
-	// If target is omitted, writes into ajaxSettings.
-	ajaxSetup: function( target, settings ) {
-		return settings ?
-
-			// Building a settings object
-			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
-
-			// Extending ajaxSettings
-			ajaxExtend( jQuery.ajaxSettings, target );
-	},
-
-	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
-	ajaxTransport: addToPrefiltersOrTransports( transports ),
-
-	// Main method
-	ajax: function( url, options ) {
-
-		// If url is an object, simulate pre-1.5 signature
-		if ( typeof url === "object" ) {
-			options = url;
-			url = undefined;
-		}
-
-		// Force options to be an object
-		options = options || {};
-
-		var transport,
-			// URL without anti-cache param
-			cacheURL,
-			// Response headers
-			responseHeadersString,
-			responseHeaders,
-			// timeout handle
-			timeoutTimer,
-			// Cross-domain detection vars
-			parts,
-			// To know if global events are to be dispatched
-			fireGlobals,
-			// Loop variable
-			i,
-			// Create the final options object
-			s = jQuery.ajaxSetup( {}, options ),
-			// Callbacks context
-			callbackContext = s.context || s,
-			// Context for global events is callbackContext if it is a DOM node or jQuery collection
-			globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?
-				jQuery( callbackContext ) :
-				jQuery.event,
-			// Deferreds
-			deferred = jQuery.Deferred(),
-			completeDeferred = jQuery.Callbacks("once memory"),
-			// Status-dependent callbacks
-			statusCode = s.statusCode || {},
-			// Headers (they are sent all at once)
-			requestHeaders = {},
-			requestHeadersNames = {},
-			// The jqXHR state
-			state = 0,
-			// Default abort message
-			strAbort = "canceled",
-			// Fake xhr
-			jqXHR = {
-				readyState: 0,
-
-				// Builds headers hashtable if needed
-				getResponseHeader: function( key ) {
-					var match;
-					if ( state === 2 ) {
-						if ( !responseHeaders ) {
-							responseHeaders = {};
-							while ( (match = rheaders.exec( responseHeadersString )) ) {
-								responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
-							}
-						}
-						match = responseHeaders[ key.toLowerCase() ];
-					}
-					return match == null ? null : match;
-				},
-
-				// Raw string
-				getAllResponseHeaders: function() {
-					return state === 2 ? responseHeadersString : null;
-				},
-
-				// Caches the header
-				setRequestHeader: function( name, value ) {
-					var lname = name.toLowerCase();
-					if ( !state ) {
-						name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
-						requestHeaders[ name ] = value;
-					}
-					return this;
-				},
-
-				// Overrides response content-type header
-				overrideMimeType: function( type ) {
-					if ( !state ) {
-						s.mimeType = type;
-					}
-					return this;
-				},
-
-				// Status-dependent callbacks
-				statusCode: function( map ) {
-					var code;
-					if ( map ) {
-						if ( state < 2 ) {
-							for ( code in map ) {
-								// Lazy-add the new callback in a way that preserves old ones
-								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
-							}
-						} else {
-							// Execute the appropriate callbacks
-							jqXHR.always( map[ jqXHR.status ] );
-						}
-					}
-					return this;
-				},
-
-				// Cancel the request
-				abort: function( statusText ) {
-					var finalText = statusText || strAbort;
-					if ( transport ) {
-						transport.abort( finalText );
-					}
-					done( 0, finalText );
-					return this;
-				}
-			};
-
-		// Attach deferreds
-		deferred.promise( jqXHR ).complete = completeDeferred.add;
-		jqXHR.success = jqXHR.done;
-		jqXHR.error = jqXHR.fail;
-
-		// Remove hash character (#7531: and string promotion)
-		// Add protocol if not provided (prefilters might expect it)
-		// Handle falsy url in the settings object (#10093: consistency with old signature)
-		// We also use the url parameter if available
-		s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" )
-			.replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
-
-		// Alias method option to type as per ticket #12004
-		s.type = options.method || options.type || s.method || s.type;
-
-		// Extract dataTypes list
-		s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( rnotwhite ) || [ "" ];
-
-		// A cross-domain request is in order when we have a protocol:host:port mismatch
-		if ( s.crossDomain == null ) {
-			parts = rurl.exec( s.url.toLowerCase() );
-			s.crossDomain = !!( parts &&
-				( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
-					( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
-						( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
-			);
-		}
-
-		// Convert data if not already a string
-		if ( s.data && s.processData && typeof s.data !== "string" ) {
-			s.data = jQuery.param( s.data, s.traditional );
-		}
-
-		// Apply prefilters
-		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
-
-		// If request was aborted inside a prefilter, stop there
-		if ( state === 2 ) {
-			return jqXHR;
-		}
-
-		// We can fire global events as of now if asked to
-		// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
-		fireGlobals = jQuery.event && s.global;
-
-		// Watch for a new set of requests
-		if ( fireGlobals && jQuery.active++ === 0 ) {
-			jQuery.event.trigger("ajaxStart");
-		}
-
-		// Uppercase the type
-		s.type = s.type.toUpperCase();
-
-		// Determine if request has content
-		s.hasContent = !rnoContent.test( s.type );
-
-		// Save the URL in case we're toying with the If-Modified-Since
-		// and/or If-None-Match header later on
-		cacheURL = s.url;
-
-		// More options handling for requests with no content
-		if ( !s.hasContent ) {
-
-			// If data is available, append data to url
-			if ( s.data ) {
-				cacheURL = ( s.url += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
-				// #9682: remove data so that it's not used in an eventual retry
-				delete s.data;
-			}
-
-			// Add anti-cache in url if needed
-			if ( s.cache === false ) {
-				s.url = rts.test( cacheURL ) ?
-
-					// If there is already a '_' parameter, set its value
-					cacheURL.replace( rts, "$1_=" + nonce++ ) :
-
-					// Otherwise add one to the end
-					cacheURL + ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + nonce++;
-			}
-		}
-
-		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-		if ( s.ifModified ) {
-			if ( jQuery.lastModified[ cacheURL ] ) {
-				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
-			}
-			if ( jQuery.etag[ cacheURL ] ) {
-				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
-			}
-		}
-
-		// Set the correct header, if data is being sent
-		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
-			jqXHR.setRequestHeader( "Content-Type", s.contentType );
-		}
-
-		// Set the Accepts header for the server, depending on the dataType
-		jqXHR.setRequestHeader(
-			"Accept",
-			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
-				s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
-				s.accepts[ "*" ]
-		);
-
-		// Check for headers option
-		for ( i in s.headers ) {
-			jqXHR.setRequestHeader( i, s.headers[ i ] );
-		}
-
-		// Allow custom headers/mimetypes and early abort
-		if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
-			// Abort if not done already and return
-			return jqXHR.abort();
-		}
-
-		// Aborting is no longer a cancellation
-		strAbort = "abort";
-
-		// Install callbacks on deferreds
-		for ( i in { success: 1, error: 1, complete: 1 } ) {
-			jqXHR[ i ]( s[ i ] );
-		}
-
-		// Get transport
-		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
-
-		// If no transport, we auto-abort
-		if ( !transport ) {
-			done( -1, "No Transport" );
-		} else {
-			jqXHR.readyState = 1;
-
-			// Send global event
-			if ( fireGlobals ) {
-				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
-			}
-			// Timeout
-			if ( s.async && s.timeout > 0 ) {
-				timeoutTimer = setTimeout(function() {
-					jqXHR.abort("timeout");
-				}, s.timeout );
-			}
-
-			try {
-				state = 1;
-				transport.send( requestHeaders, done );
-			} catch ( e ) {
-				// Propagate exception as error if not done
-				if ( state < 2 ) {
-					done( -1, e );
-				// Simply rethrow otherwise
-				} else {
-					throw e;
-				}
-			}
-		}
-
-		// Callback for when everything is done
-		function done( status, nativeStatusText, responses, headers ) {
-			var isSuccess, success, error, response, modified,
-				statusText = nativeStatusText;
-
-			// Called once
-			if ( state === 2 ) {
-				return;
-			}
-
-			// State is "done" now
-			state = 2;
-
-			// Clear timeout if it exists
-			if ( timeoutTimer ) {
-				clearTimeout( timeoutTimer );
-			}
-
-			// Dereference transport for early garbage collection
-			// (no matter how long the jqXHR object will be used)
-			transport = undefined;
-
-			// Cache response headers
-			responseHeadersString = headers || "";
-
-			// Set readyState
-			jqXHR.readyState = status > 0 ? 4 : 0;
-
-			// Determine if successful
-			isSuccess = status >= 200 && status < 300 || status === 304;
-
-			// Get response data
-			if ( responses ) {
-				response = ajaxHandleResponses( s, jqXHR, responses );
-			}
-
-			// Convert no matter what (that way responseXXX fields are always set)
-			response = ajaxConvert( s, response, jqXHR, isSuccess );
-
-			// If successful, handle type chaining
-			if ( isSuccess ) {
-
-				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-				if ( s.ifModified ) {
-					modified = jqXHR.getResponseHeader("Last-Modified");
-					if ( modified ) {
-						jQuery.lastModified[ cacheURL ] = modified;
-					}
-					modified = jqXHR.getResponseHeader("etag");
-					if ( modified ) {
-						jQuery.etag[ cacheURL ] = modified;
-					}
-				}
-
-				// if no content
-				if ( status === 204 || s.type === "HEAD" ) {
-					statusText = "nocontent";
-
-				// if not modified
-				} else if ( status === 304 ) {
-					statusText = "notmodified";
-
-				// If we have data, let's convert it
-				} else {
-					statusText = response.state;
-					success = response.data;
-					error = response.error;
-					isSuccess = !error;
-				}
-			} else {
-				// Extract error from statusText and normalize for non-aborts
-				error = statusText;
-				if ( status || !statusText ) {
-					statusText = "error";
-					if ( status < 0 ) {
-						status = 0;
-					}
-				}
-			}
-
-			// Set data for the fake xhr object
-			jqXHR.status = status;
-			jqXHR.statusText = ( nativeStatusText || statusText ) + "";
-
-			// Success/Error
-			if ( isSuccess ) {
-				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
-			} else {
-				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
-			}
-
-			// Status-dependent callbacks
-			jqXHR.statusCode( statusCode );
-			statusCode = undefined;
-
-			if ( fireGlobals ) {
-				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
-					[ jqXHR, s, isSuccess ? success : error ] );
-			}
-
-			// Complete
-			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
-
-			if ( fireGlobals ) {
-				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
-				// Handle the global AJAX counter
-				if ( !( --jQuery.active ) ) {
-					jQuery.event.trigger("ajaxStop");
-				}
-			}
-		}
-
-		return jqXHR;
-	},
-
-	getJSON: function( url, data, callback ) {
-		return jQuery.get( url, data, callback, "json" );
-	},
-
-	getScript: function( url, callback ) {
-		return jQuery.get( url, undefined, callback, "script" );
-	}
-});
-
-jQuery.each( [ "get", "post" ], function( i, method ) {
-	jQuery[ method ] = function( url, data, callback, type ) {
-		// Shift arguments if data argument was omitted
-		if ( jQuery.isFunction( data ) ) {
-			type = type || callback;
-			callback = data;
-			data = undefined;
-		}
-
-		return jQuery.ajax({
-			url: url,
-			type: method,
-			dataType: type,
-			data: data,
-			success: callback
-		});
-	};
-});
-
-
-jQuery._evalUrl = function( url ) {
-	return jQuery.ajax({
-		url: url,
-		type: "GET",
-		dataType: "script",
-		async: false,
-		global: false,
-		"throws": true
-	});
-};
-
-
-jQuery.fn.extend({
-	wrapAll: function( html ) {
-		var wrap;
-
-		if ( jQuery.isFunction( html ) ) {
-			return this.each(function( i ) {
-				jQuery( this ).wrapAll( html.call(this, i) );
-			});
-		}
-
-		if ( this[ 0 ] ) {
-
-			// The elements to wrap the target around
-			wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
-
-			if ( this[ 0 ].parentNode ) {
-				wrap.insertBefore( this[ 0 ] );
-			}
-
-			wrap.map(function() {
-				var elem = this;
-
-				while ( elem.firstElementChild ) {
-					elem = elem.firstElementChild;
-				}
-
-				return elem;
-			}).append( this );
-		}
-
-		return this;
-	},
-
-	wrapInner: function( html ) {
-		if ( jQuery.isFunction( html ) ) {
-			return this.each(function( i ) {
-				jQuery( this ).wrapInner( html.call(this, i) );
-			});
-		}
-
-		return this.each(function() {
-			var self = jQuery( this ),
-				contents = self.contents();
-
-			if ( contents.length ) {
-				contents.wrapAll( html );
-
-			} else {
-				self.append( html );
-			}
-		});
-	},
-
-	wrap: function( html ) {
-		var isFunction = jQuery.isFunction( html );
-
-		return this.each(function( i ) {
-			jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
-		});
-	},
-
-	unwrap: function() {
-		return this.parent().each(function() {
-			if ( !jQuery.nodeName( this, "body" ) ) {
-				jQuery( this ).replaceWith( this.childNodes );
-			}
-		}).end();
-	}
-});
-
-
-jQuery.expr.filters.hidden = function( elem ) {
-	// Support: Opera <= 12.12
-	// Opera reports offsetWidths and offsetHeights less than zero on some elements
-	return elem.offsetWidth <= 0 && elem.offsetHeight <= 0;
-};
-jQuery.expr.filters.visible = function( elem ) {
-	return !jQuery.expr.filters.hidden( elem );
-};
-
-
-
-
-var r20 = /%20/g,
-	rbracket = /\[\]$/,
-	rCRLF = /\r?\n/g,
-	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
-	rsubmittable = /^(?:input|select|textarea|keygen)/i;
-
-function buildParams( prefix, obj, traditional, add ) {
-	var name;
-
-	if ( jQuery.isArray( obj ) ) {
-		// Serialize array item.
-		jQuery.each( obj, function( i, v ) {
-			if ( traditional || rbracket.test( prefix ) ) {
-				// Treat each array item as a scalar.
-				add( prefix, v );
-
-			} else {
-				// Item is non-scalar (array or object), encode its numeric index.
-				buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
-			}
-		});
-
-	} else if ( !traditional && jQuery.type( obj ) === "object" ) {
-		// Serialize object item.
-		for ( name in obj ) {
-			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
-		}
-
-	} else {
-		// Serialize scalar item.
-		add( prefix, obj );
-	}
-}
-
-// Serialize an array of form elements or a set of
-// key/values into a query string
-jQuery.param = function( a, traditional ) {
-	var prefix,
-		s = [],
-		add = function( key, value ) {
-			// If value is a function, invoke it and return its value
-			value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
-			s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
-		};
-
-	// Set traditional to true for jQuery <= 1.3.2 behavior.
-	if ( traditional === undefined ) {
-		traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
-	}
-
-	// If an array was passed in, assume that it is an array of form elements.
-	if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
-		// Serialize the form elements
-		jQuery.each( a, function() {
-			add( this.name, this.value );
-		});
-
-	} else {
-		// If traditional, encode the "old" way (the way 1.3.2 or older
-		// did it), otherwise encode params recursively.
-		for ( prefix in a ) {
-			buildParams( prefix, a[ prefix ], traditional, add );
-		}
-	}
-
-	// Return the resulting serialization
-	return s.join( "&" ).replace( r20, "+" );
-};
-
-jQuery.fn.extend({
-	serialize: function() {
-		return jQuery.param( this.serializeArray() );
-	},
-	serializeArray: function() {
-		return this.map(function() {
-			// Can add propHook for "elements" to filter or add form elements
-			var elements = jQuery.prop( this, "elements" );
-			return elements ? jQuery.makeArray( elements ) : this;
-		})
-		.filter(function() {
-			var type = this.type;
-
-			// Use .is( ":disabled" ) so that fieldset[disabled] works
-			return this.name && !jQuery( this ).is( ":disabled" ) &&
-				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
-				( this.checked || !rcheckableType.test( type ) );
-		})
-		.map(function( i, elem ) {
-			var val = jQuery( this ).val();
-
-			return val == null ?
-				null :
-				jQuery.isArray( val ) ?
-					jQuery.map( val, function( val ) {
-						return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-					}) :
-					{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-		}).get();
-	}
-});
-
-
-jQuery.ajaxSettings.xhr = function() {
-	try {
-		return new XMLHttpRequest();
-	} catch( e ) {}
-};
-
-var xhrId = 0,
-	xhrCallbacks = {},
-	xhrSuccessStatus = {
-		// file protocol always yields status code 0, assume 200
-		0: 200,
-		// Support: IE9
-		// #1450: sometimes IE returns 1223 when it should be 204
-		1223: 204
-	},
-	xhrSupported = jQuery.ajaxSettings.xhr();
-
-// Support: IE9
-// Open requests must be manually aborted on unload (#5280)
-// See https://support.microsoft.com/kb/2856746 for more info
-if ( window.attachEvent ) {
-	window.attachEvent( "onunload", function() {
-		for ( var key in xhrCallbacks ) {
-			xhrCallbacks[ key ]();
-		}
-	});
-}
-
-support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
-support.ajax = xhrSupported = !!xhrSupported;
-
-jQuery.ajaxTransport(function( options ) {
-	var callback;
-
-	// Cross domain only allowed if supported through XMLHttpRequest
-	if ( support.cors || xhrSupported && !options.crossDomain ) {
-		return {
-			send: function( headers, complete ) {
-				var i,
-					xhr = options.xhr(),
-					id = ++xhrId;
-
-				xhr.open( options.type, options.url, options.async, options.username, options.password );
-
-				// Apply custom fields if provided
-				if ( options.xhrFields ) {
-					for ( i in options.xhrFields ) {
-						xhr[ i ] = options.xhrFields[ i ];
-					}
-				}
-
-				// Override mime type if needed
-				if ( options.mimeType && xhr.overrideMimeType ) {
-					xhr.overrideMimeType( options.mimeType );
-				}
-
-				// X-Requested-With header
-				// For cross-domain requests, seeing as conditions for a preflight are
-				// akin to a jigsaw puzzle, we simply never set it to be sure.
-				// (it can always be set on a per-request basis or even using ajaxSetup)
-				// For same-domain requests, won't change header if already provided.
-				if ( !options.crossDomain && !headers["X-Requested-With"] ) {
-					headers["X-Requested-With"] = "XMLHttpRequest";
-				}
-
-				// Set headers
-				for ( i in headers ) {
-					xhr.setRequestHeader( i, headers[ i ] );
-				}
-
-				// Callback
-				callback = function( type ) {
-					return function() {
-						if ( callback ) {
-							delete xhrCallbacks[ id ];
-							callback = xhr.onload = xhr.onerror = null;
-
-							if ( type === "abort" ) {
-								xhr.abort();
-							} else if ( type === "error" ) {
-								complete(
-									// file: protocol always yields status 0; see #8605, #14207
-									xhr.status,
-									xhr.statusText
-								);
-							} else {
-								complete(
-									xhrSuccessStatus[ xhr.status ] || xhr.status,
-									xhr.statusText,
-									// Support: IE9
-									// Accessing binary-data responseText throws an exception
-									// (#11426)
-									typeof xhr.responseText === "string" ? {
-										text: xhr.responseText
-									} : undefined,
-									xhr.getAllResponseHeaders()
-								);
-							}
-						}
-					};
-				};
-
-				// Listen to events
-				xhr.onload = callback();
-				xhr.onerror = callback("error");
-
-				// Create the abort callback
-				callback = xhrCallbacks[ id ] = callback("abort");
-
-				try {
-					// Do send the request (this may raise an exception)
-					xhr.send( options.hasContent && options.data || null );
-				} catch ( e ) {
-					// #14683: Only rethrow if this hasn't been notified as an error yet
-					if ( callback ) {
-						throw e;
-					}
-				}
-			},
-
-			abort: function() {
-				if ( callback ) {
-					callback();
-				}
-			}
-		};
-	}
-});
-
-
-
-
-// Install script dataType
-jQuery.ajaxSetup({
-	accepts: {
-		script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
-	},
-	contents: {
-		script: /(?:java|ecma)script/
-	},
-	converters: {
-		"text script": function( text ) {
-			jQuery.globalEval( text );
-			return text;
-		}
-	}
-});
-
-// Handle cache's special case and crossDomain
-jQuery.ajaxPrefilter( "script", function( s ) {
-	if ( s.cache === undefined ) {
-		s.cache = false;
-	}
-	if ( s.crossDomain ) {
-		s.type = "GET";
-	}
-});
-
-// Bind script tag hack transport
-jQuery.ajaxTransport( "script", function( s ) {
-	// This transport only deals with cross domain requests
-	if ( s.crossDomain ) {
-		var script, callback;
-		return {
-			send: function( _, complete ) {
-				script = jQuery("<script>").prop({
-					async: true,
-					charset: s.scriptCharset,
-					src: s.url
-				}).on(
-					"load error",
-					callback = function( evt ) {
-						script.remove();
-						callback = null;
-						if ( evt ) {
-							complete( evt.type === "error" ? 404 : 200, evt.type );
-						}
-					}
-				);
-				document.head.appendChild( script[ 0 ] );
-			},
-			abort: function() {
-				if ( callback ) {
-					callback();
-				}
-			}
-		};
-	}
-});
-
-
-
-
-var oldCallbacks = [],
-	rjsonp = /(=)\?(?=&|$)|\?\?/;
-
-// Default jsonp settings
-jQuery.ajaxSetup({
-	jsonp: "callback",
-	jsonpCallback: function() {
-		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
-		this[ callback ] = true;
-		return callback;
-	}
-});
-
-// Detect, normalize options and install callbacks for jsonp requests
-jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
-
-	var callbackName, overwritten, responseContainer,
-		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
-			"url" :
-			typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data"
-		);
-
-	// Handle iff the expected data type is "jsonp" or we have a parameter to set
-	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
-
-		// Get callback name, remembering preexisting value associated with it
-		callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
-			s.jsonpCallback() :
-			s.jsonpCallback;
-
-		// Insert callback into url or form data
-		if ( jsonProp ) {
-			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
-		} else if ( s.jsonp !== false ) {
-			s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
-		}
-
-		// Use data converter to retrieve json after script execution
-		s.converters["script json"] = function() {
-			if ( !responseContainer ) {
-				jQuery.error( callbackName + " was not called" );
-			}
-			return responseContainer[ 0 ];
-		};
-
-		// force json dataType
-		s.dataTypes[ 0 ] = "json";
-
-		// Install callback
-		overwritten = window[ callbackName ];
-		window[ callbackName ] = function() {
-			responseContainer = arguments;
-		};
-
-		// Clean-up function (fires after converters)
-		jqXHR.always(function() {
-			// Restore preexisting value
-			window[ callbackName ] = overwritten;
-
-			// Save back as free
-			if ( s[ callbackName ] ) {
-				// make sure that re-using the options doesn't screw things around
-				s.jsonpCallback = originalSettings.jsonpCallback;
-
-				// save the callback name for future use
-				oldCallbacks.push( callbackName );
-			}
-
-			// Call if it was a function and we have a response
-			if ( responseContainer && jQuery.isFunction( overwritten ) ) {
-				overwritten( responseContainer[ 0 ] );
-			}
-
-			responseContainer = overwritten = undefined;
-		});
-
-		// Delegate to script
-		return "script";
-	}
-});
-
-
-
-
-// data: string of html
-// context (optional): If specified, the fragment will be created in this context, defaults to document
-// keepScripts (optional): If true, will include scripts passed in the html string
-jQuery.parseHTML = function( data, context, keepScripts ) {
-	if ( !data || typeof data !== "string" ) {
-		return null;
-	}
-	if ( typeof context === "boolean" ) {
-		keepScripts = context;
-		context = false;
-	}
-	context = context || document;
-
-	var parsed = rsingleTag.exec( data ),
-		scripts = !keepScripts && [];
-
-	// Single tag
-	if ( parsed ) {
-		return [ context.createElement( parsed[1] ) ];
-	}
-
-	parsed = jQuery.buildFragment( [ data ], context, scripts );
-
-	if ( scripts && scripts.length ) {
-		jQuery( scripts ).remove();
-	}
-
-	return jQuery.merge( [], parsed.childNodes );
-};
-
-
-// Keep a copy of the old load method
-var _load = jQuery.fn.load;
-
-/**
- * Load a url into a page
- */
-jQuery.fn.load = function( url, params, callback ) {
-	if ( typeof url !== "string" && _load ) {
-		return _load.apply( this, arguments );
-	}
-
-	var selector, type, response,
-		self = this,
-		off = url.indexOf(" ");
-
-	if ( off >= 0 ) {
-		selector = jQuery.trim( url.slice( off ) );
-		url = url.slice( 0, off );
-	}
-
-	// If it's a function
-	if ( jQuery.isFunction( params ) ) {
-
-		// We assume that it's the callback
-		callback = params;
-		params = undefined;
-
-	// Otherwise, build a param string
-	} else if ( params && typeof params === "object" ) {
-		type = "POST";
-	}
-
-	// If we have elements to modify, make the request
-	if ( self.length > 0 ) {
-		jQuery.ajax({
-			url: url,
-
-			// if "type" variable is undefined, then "GET" method will be used
-			type: type,
-			dataType: "html",
-			data: params
-		}).done(function( responseText ) {
-
-			// Save response for use in complete callback
-			response = arguments;
-
-			self.html( selector ?
-
-				// If a selector was specified, locate the right elements in a dummy div
-				// Exclude scripts to avoid IE 'Permission Denied' errors
-				jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :
-
-				// Otherwise use the full result
-				responseText );
-
-		}).complete( callback && function( jqXHR, status ) {
-			self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );
-		});
-	}
-
-	return this;
-};
-
-
-
-
-// Attach a bunch of functions for handling common AJAX events
-jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ) {
-	jQuery.fn[ type ] = function( fn ) {
-		return this.on( type, fn );
-	};
-});
-
-
-
-
-jQuery.expr.filters.animated = function( elem ) {
-	return jQuery.grep(jQuery.timers, function( fn ) {
-		return elem === fn.elem;
-	}).length;
-};
-
-
-
-
-var docElem = window.document.documentElement;
-
-/**
- * Gets a window from an element
- */
-function getWindow( elem ) {
-	return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
-}
-
-jQuery.offset = {
-	setOffset: function( elem, options, i ) {
-		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
-			position = jQuery.css( elem, "position" ),
-			curElem = jQuery( elem ),
-			props = {};
-
-		// Set position first, in-case top/left are set even on static elem
-		if ( position === "static" ) {
-			elem.style.position = "relative";
-		}
-
-		curOffset = curElem.offset();
-		curCSSTop = jQuery.css( elem, "top" );
-		curCSSLeft = jQuery.css( elem, "left" );
-		calculatePosition = ( position === "absolute" || position === "fixed" ) &&
-			( curCSSTop + curCSSLeft ).indexOf("auto") > -1;
-
-		// Need to be able to calculate position if either
-		// top or left is auto and position is either absolute or fixed
-		if ( calculatePosition ) {
-			curPosition = curElem.position();
-			curTop = curPosition.top;
-			curLeft = curPosition.left;
-
-		} else {
-			curTop = parseFloat( curCSSTop ) || 0;
-			curLeft = parseFloat( curCSSLeft ) || 0;
-		}
-
-		if ( jQuery.isFunction( options ) ) {
-			options = options.call( elem, i, curOffset );
-		}
-
-		if ( options.top != null ) {
-			props.top = ( options.top - curOffset.top ) + curTop;
-		}
-		if ( options.left != null ) {
-			props.left = ( options.left - curOffset.left ) + curLeft;
-		}
-
-		if ( "using" in options ) {
-			options.using.call( elem, props );
-
-		} else {
-			curElem.css( props );
-		}
-	}
-};
-
-jQuery.fn.extend({
-	offset: function( options ) {
-		if ( arguments.length ) {
-			return options === undefined ?
-				this :
-				this.each(function( i ) {
-					jQuery.offset.setOffset( this, options, i );
-				});
-		}
-
-		var docElem, win,
-			elem = this[ 0 ],
-			box = { top: 0, left: 0 },
-			doc = elem && elem.ownerDocument;
-
-		if ( !doc ) {
-			return;
-		}
-
-		docElem = doc.documentElement;
-
-		// Make sure it's not a disconnected DOM node
-		if ( !jQuery.contains( docElem, elem ) ) {
-			return box;
-		}
-
-		// Support: BlackBerry 5, iOS 3 (original iPhone)
-		// If we don't have gBCR, just use 0,0 rather than error
-		if ( typeof elem.getBoundingClientRect !== strundefined ) {
-			box = elem.getBoundingClientRect();
-		}
-		win = getWindow( doc );
-		return {
-			top: box.top + win.pageYOffset - docElem.clientTop,
-			left: box.left + win.pageXOffset - docElem.clientLeft
-		};
-	},
-
-	position: function() {
-		if ( !this[ 0 ] ) {
-			return;
-		}
-
-		var offsetParent, offset,
-			elem = this[ 0 ],
-			parentOffset = { top: 0, left: 0 };
-
-		// Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is its only offset parent
-		if ( jQuery.css( elem, "position" ) === "fixed" ) {
-			// Assume getBoundingClientRect is there when computed position is fixed
-			offset = elem.getBoundingClientRect();
-
-		} else {
-			// Get *real* offsetParent
-			offsetParent = this.offsetParent();
-
-			// Get correct offsets
-			offset = this.offset();
-			if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
-				parentOffset = offsetParent.offset();
-			}
-
-			// Add offsetParent borders
-			parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
-			parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
-		}
-
-		// Subtract parent offsets and element margins
-		return {
-			top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
-			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
-		};
-	},
-
-	offsetParent: function() {
-		return this.map(function() {
-			var offsetParent = this.offsetParent || docElem;
-
-			while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position" ) === "static" ) ) {
-				offsetParent = offsetParent.offsetParent;
-			}
-
-			return offsetParent || docElem;
-		});
-	}
-});
-
-// Create scrollLeft and scrollTop methods
-jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
-	var top = "pageYOffset" === prop;
-
-	jQuery.fn[ method ] = function( val ) {
-		return access( this, function( elem, method, val ) {
-			var win = getWindow( elem );
-
-			if ( val === undefined ) {
-				return win ? win[ prop ] : elem[ method ];
-			}
-
-			if ( win ) {
-				win.scrollTo(
-					!top ? val : window.pageXOffset,
-					top ? val : window.pageYOffset
-				);
-
-			} else {
-				elem[ method ] = val;
-			}
-		}, method, val, arguments.length, null );
-	};
-});
-
-// Support: Safari<7+, Chrome<37+
-// Add the top/left cssHooks using jQuery.fn.position
-// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
-// Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280
-// getComputedStyle returns percent when specified for top/left/bottom/right;
-// rather than make the css module depend on the offset module, just check for it here
-jQuery.each( [ "top", "left" ], function( i, prop ) {
-	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
-		function( elem, computed ) {
-			if ( computed ) {
-				computed = curCSS( elem, prop );
-				// If curCSS returns percentage, fallback to offset
-				return rnumnonpx.test( computed ) ?
-					jQuery( elem ).position()[ prop ] + "px" :
-					computed;
-			}
-		}
-	);
-});
-
-
-// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
-jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
-	jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {
-		// Margin is only for outerHeight, outerWidth
-		jQuery.fn[ funcName ] = function( margin, value ) {
-			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
-				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
-
-			return access( this, function( elem, type, value ) {
-				var doc;
-
-				if ( jQuery.isWindow( elem ) ) {
-					// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
-					// isn't a whole lot we can do. See pull request at this URL for discussion:
-					// https://github.com/jquery/jquery/pull/764
-					return elem.document.documentElement[ "client" + name ];
-				}
-
-				// Get document width or height
-				if ( elem.nodeType === 9 ) {
-					doc = elem.documentElement;
-
-					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
-					// whichever is greatest
-					return Math.max(
-						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
-						elem.body[ "offset" + name ], doc[ "offset" + name ],
-						doc[ "client" + name ]
-					);
-				}
-
-				return value === undefined ?
-					// Get width or height on the element, requesting but not forcing parseFloat
-					jQuery.css( elem, type, extra ) :
-
-					// Set width or height on the element
-					jQuery.style( elem, type, value, extra );
-			}, type, chainable ? margin : undefined, chainable, null );
-		};
-	});
-});
-
-
-// The number of elements contained in the matched element set
-jQuery.fn.size = function() {
-	return this.length;
-};
-
-jQuery.fn.andSelf = jQuery.fn.addBack;
-
-
-
-
-// Register as a named AMD module, since jQuery can be concatenated with other
-// files that may use define, but not via a proper concatenation script that
-// understands anonymous AMD modules. A named AMD is safest and most robust
-// way to register. Lowercase jquery is used because AMD module names are
-// derived from file names, and jQuery is normally delivered in a lowercase
-// file name. Do this after creating the global so that if an AMD module wants
-// to call noConflict to hide this version of jQuery, it will work.
-
-// Note that for maximum portability, libraries that are not jQuery should
-// declare themselves as anonymous modules, and avoid setting a global if an
-// AMD loader is present. jQuery is a special case. For more information, see
-// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
-
-if ( typeof define === "function" && define.amd ) {
-	define( "jquery", [], function() {
-		return jQuery;
-	});
-}
-
-
-
-
-var
-	// Map over jQuery in case of overwrite
-	_jQuery = window.jQuery,
-
-	// Map over the $ in case of overwrite
-	_$ = window.$;
-
-jQuery.noConflict = function( deep ) {
-	if ( window.$ === jQuery ) {
-		window.$ = _$;
-	}
-
-	if ( deep && window.jQuery === jQuery ) {
-		window.jQuery = _jQuery;
-	}
-
-	return jQuery;
-};
-
-// Expose jQuery and $ identifiers, even in AMD
-// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
-// and CommonJS for browser emulators (#13566)
-if ( typeof noGlobal === strundefined ) {
-	window.jQuery = window.$ = jQuery;
-}
-
-
-
-
-return jQuery;
-
-}));
-
-},{}],2:[function(require,module,exports){
-(function (global){
-/**
- * @license
- * lodash 3.10.1 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern -d -o ./index.js`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
-;(function() {
-
-  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
-  var undefined;
-
-  /** Used as the semantic version number. */
-  var VERSION = '3.10.1';
-
-  /** Used to compose bitmasks for wrapper metadata. */
-  var BIND_FLAG = 1,
-      BIND_KEY_FLAG = 2,
-      CURRY_BOUND_FLAG = 4,
-      CURRY_FLAG = 8,
-      CURRY_RIGHT_FLAG = 16,
-      PARTIAL_FLAG = 32,
-      PARTIAL_RIGHT_FLAG = 64,
-      ARY_FLAG = 128,
-      REARG_FLAG = 256;
-
-  /** Used as default options for `_.trunc`. */
-  var DEFAULT_TRUNC_LENGTH = 30,
-      DEFAULT_TRUNC_OMISSION = '...';
-
-  /** Used to detect when a function becomes hot. */
-  var HOT_COUNT = 150,
-      HOT_SPAN = 16;
-
-  /** Used as the size to enable large array optimizations. */
-  var LARGE_ARRAY_SIZE = 200;
-
-  /** Used to indicate the type of lazy iteratees. */
-  var LAZY_FILTER_FLAG = 1,
-      LAZY_MAP_FLAG = 2;
-
-  /** Used as the `TypeError` message for "Functions" methods. */
-  var FUNC_ERROR_TEXT = 'Expected a function';
-
-  /** Used as the internal argument placeholder. */
-  var PLACEHOLDER = '__lodash_placeholder__';
-
-  /** `Object#toString` result references. */
-  var argsTag = '[object Arguments]',
-      arrayTag = '[object Array]',
-      boolTag = '[object Boolean]',
-      dateTag = '[object Date]',
-      errorTag = '[object Error]',
-      funcTag = '[object Function]',
-      mapTag = '[object Map]',
-      numberTag = '[object Number]',
-      objectTag = '[object Object]',
-      regexpTag = '[object RegExp]',
-      setTag = '[object Set]',
-      stringTag = '[object String]',
-      weakMapTag = '[object WeakMap]';
-
-  var arrayBufferTag = '[object ArrayBuffer]',
-      float32Tag = '[object Float32Array]',
-      float64Tag = '[object Float64Array]',
-      int8Tag = '[object Int8Array]',
-      int16Tag = '[object Int16Array]',
-      int32Tag = '[object Int32Array]',
-      uint8Tag = '[object Uint8Array]',
-      uint8ClampedTag = '[object Uint8ClampedArray]',
-      uint16Tag = '[object Uint16Array]',
-      uint32Tag = '[object Uint32Array]';
-
-  /** Used to match empty string literals in compiled template source. */
-  var reEmptyStringLeading = /\b__p \+= '';/g,
-      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
-      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
-
-  /** Used to match HTML entities and HTML characters. */
-  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g,
-      reUnescapedHtml = /[&<>"'`]/g,
-      reHasEscapedHtml = RegExp(reEscapedHtml.source),
-      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
-
-  /** Used to match template delimiters. */
-  var reEscape = /<%-([\s\S]+?)%>/g,
-      reEvaluate = /<%([\s\S]+?)%>/g,
-      reInterpolate = /<%=([\s\S]+?)%>/g;
-
-  /** Used to match property names within property paths. */
-  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,
-      reIsPlainProp = /^\w*$/,
-      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g;
-
-  /**
-   * Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns)
-   * and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern).
-   */
-  var reRegExpChars = /^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g,
-      reHasRegExpChars = RegExp(reRegExpChars.source);
-
-  /** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */
-  var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g;
-
-  /** Used to match backslashes in property paths. */
-  var reEscapeChar = /\\(\\)?/g;
-
-  /** Used to match [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components). */
-  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
-
-  /** Used to match `RegExp` flags from their coerced string values. */
-  var reFlags = /\w*$/;
-
-  /** Used to detect hexadecimal string values. */
-  var reHasHexPrefix = /^0[xX]/;
-
-  /** Used to detect host constructors (Safari > 5). */
-  var reIsHostCtor = /^\[object .+?Constructor\]$/;
-
-  /** Used to detect unsigned integer values. */
-  var reIsUint = /^\d+$/;
-
-  /** Used to match latin-1 supplementary letters (excluding mathematical operators). */
-  var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;
-
-  /** Used to ensure capturing order of template delimiters. */
-  var reNoMatch = /($^)/;
-
-  /** Used to match unescaped characters in compiled string literals. */
-  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
-
-  /** Used to match words to create compound words. */
-  var reWords = (function() {
-    var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]',
-        lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+';
-
-    return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g');
-  }());
-
-  /** Used to assign default `context` object properties. */
-  var contextProps = [
-    'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array',
-    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number',
-    'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'isFinite',
-    'parseFloat', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array',
-    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap'
-  ];
-
-  /** Used to make template sourceURLs easier to identify. */
-  var templateCounter = -1;
-
-  /** Used to identify `toStringTag` values of typed arrays. */
-  var typedArrayTags = {};
-  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
-  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
-  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
-  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
-  typedArrayTags[uint32Tag] = true;
-  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
-  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
-  typedArrayTags[dateTag] = typedArrayTags[errorTag] =
-  typedArrayTags[funcTag] = typedArrayTags[mapTag] =
-  typedArrayTags[numberTag] = typedArrayTags[objectTag] =
-  typedArrayTags[regexpTag] = typedArrayTags[setTag] =
-  typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
-
-  /** Used to identify `toStringTag` values supported by `_.clone`. */
-  var cloneableTags = {};
-  cloneableTags[argsTag] = cloneableTags[arrayTag] =
-  cloneableTags[arrayBufferTag] = cloneableTags[boolTag] =
-  cloneableTags[dateTag] = cloneableTags[float32Tag] =
-  cloneableTags[float64Tag] = cloneableTags[int8Tag] =
-  cloneableTags[int16Tag] = cloneableTags[int32Tag] =
-  cloneableTags[numberTag] = cloneableTags[objectTag] =
-  cloneableTags[regexpTag] = cloneableTags[stringTag] =
-  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
-  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
-  cloneableTags[errorTag] = cloneableTags[funcTag] =
-  cloneableTags[mapTag] = cloneableTags[setTag] =
-  cloneableTags[weakMapTag] = false;
-
-  /** Used to map latin-1 supplementary letters to basic latin letters. */
-  var deburredLetters = {
-    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
-    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
-    '\xc7': 'C',  '\xe7': 'c',
-    '\xd0': 'D',  '\xf0': 'd',
-    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
-    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
-    '\xcC': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
-    '\xeC': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
-    '\xd1': 'N',  '\xf1': 'n',
-    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
-    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
-    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
-    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
-    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
-    '\xc6': 'Ae', '\xe6': 'ae',
-    '\xde': 'Th', '\xfe': 'th',
-    '\xdf': 'ss'
-  };
-
-  /** Used to map characters to HTML entities. */
-  var htmlEscapes = {
-    '&': '&amp;',
-    '<': '&lt;',
-    '>': '&gt;',
-    '"': '&quot;',
-    "'": '&#39;',
-    '`': '&#96;'
-  };
-
-  /** Used to map HTML entities to characters. */
-  var htmlUnescapes = {
-    '&amp;': '&',
-    '&lt;': '<',
-    '&gt;': '>',
-    '&quot;': '"',
-    '&#39;': "'",
-    '&#96;': '`'
-  };
-
-  /** Used to determine if values are of the language type `Object`. */
-  var objectTypes = {
-    'function': true,
-    'object': true
-  };
-
-  /** Used to escape characters for inclusion in compiled regexes. */
-  var regexpEscapes = {
-    '0': 'x30', '1': 'x31', '2': 'x32', '3': 'x33', '4': 'x34',
-    '5': 'x35', '6': 'x36', '7': 'x37', '8': 'x38', '9': 'x39',
-    'A': 'x41', 'B': 'x42', 'C': 'x43', 'D': 'x44', 'E': 'x45', 'F': 'x46',
-    'a': 'x61', 'b': 'x62', 'c': 'x63', 'd': 'x64', 'e': 'x65', 'f': 'x66',
-    'n': 'x6e', 'r': 'x72', 't': 'x74', 'u': 'x75', 'v': 'x76', 'x': 'x78'
-  };
-
-  /** Used to escape characters for inclusion in compiled string literals. */
-  var stringEscapes = {
-    '\\': '\\',
-    "'": "'",
-    '\n': 'n',
-    '\r': 'r',
-    '\u2028': 'u2028',
-    '\u2029': 'u2029'
-  };
-
-  /** Detect free variable `exports`. */
-  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
-
-  /** Detect free variable `module`. */
-  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
-
-  /** Detect free variable `global` from Node.js. */
-  var freeGlobal = freeExports && freeModule && typeof global == 'object' && global && global.Object && global;
-
-  /** Detect free variable `self`. */
-  var freeSelf = objectTypes[typeof self] && self && self.Object && self;
-
-  /** Detect free variable `window`. */
-  var freeWindow = objectTypes[typeof window] && window && window.Object && window;
-
-  /** Detect the popular CommonJS extension `module.exports`. */
-  var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
-
-  /**
-   * Used as a reference to the global object.
-   *
-   * The `this` value is used if it's the global object to avoid Greasemonkey's
-   * restricted `window` object, otherwise the `window` object is used.
-   */
-  var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this;
-
-  /*--------------------------------------------------------------------------*/
-
-  /**
-   * The base implementation of `compareAscending` which compares values and
-   * sorts them in ascending order without guaranteeing a stable sort.
-   *
-   * @private
-   * @param {*} value The value to compare.
-   * @param {*} other The other value to compare.
-   * @returns {number} Returns the sort order indicator for `value`.
-   */
-  function baseCompareAscending(value, other) {
-    if (value !== other) {
-      var valIsNull = value === null,
-          valIsUndef = value === undefined,
-          valIsReflexive = value === value;
-
-      var othIsNull = other === null,
-          othIsUndef = other === undefined,
-          othIsReflexive = other === other;
-
-      if ((value > other && !othIsNull) || !valIsReflexive ||
-          (valIsNull && !othIsUndef && othIsReflexive) ||
-          (valIsUndef && othIsReflexive)) {
-        return 1;
-      }
-      if ((value < other && !valIsNull) || !othIsReflexive ||
-          (othIsNull && !valIsUndef && valIsReflexive) ||
-          (othIsUndef && valIsReflexive)) {
-        return -1;
-      }
-    }
-    return 0;
-  }
-
-  /**
-   * The base implementation of `_.findIndex` and `_.findLastIndex` without
-   * support for callback shorthands and `this` binding.
-   *
-   * @private
-   * @param {Array} array The array to search.
-   * @param {Function} predicate The function invoked per iteration.
-   * @param {boolean} [fromRight] Specify iterating from right to left.
-   * @returns {number} Returns the index of the matched value, else `-1`.
-   */
-  function baseFindIndex(array, predicate, fromRight) {
-    var length = array.length,
-        index = fromRight ? length : -1;
-
-    while ((fromRight ? index-- : ++index < length)) {
-      if (predicate(array[index], index, array)) {
-        return index;
-      }
-    }
-    return -1;
-  }
-
-  /**
-   * The base implementation of `_.indexOf` without support for binary searches.
-   *
-   * @private
-   * @param {Array} array The array to search.
-   * @param {*} value The value to search for.
-   * @param {number} fromIndex The index to search from.
-   * @returns {number} Returns the index of the matched value, else `-1`.
-   */
-  function baseIndexOf(array, value, fromIndex) {
-    if (value !== value) {
-      return indexOfNaN(array, fromIndex);
-    }
-    var index = fromIndex - 1,
-        length = array.length;
-
-    while (++index < length) {
-      if (array[index] === value) {
-        return index;
-      }
-    }
-    return -1;
-  }
-
-  /**
-   * The base implementation of `_.isFunction` without support for environments
-   * with incorrect `typeof` results.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-   */
-  function baseIsFunction(value) {
-    // Avoid a Chakra JIT bug in compatibility modes of IE 11.
-    // See https://github.com/jashkenas/underscore/issues/1621 for more details.
-    return typeof value == 'function' || false;
-  }
-
-  /**
-   * Converts `value` to a string if it's not one. An empty string is returned
-   * for `null` or `undefined` values.
-   *
-   * @private
-   * @param {*} value The value to process.
-   * @returns {string} Returns the string.
-   */
-  function baseToString(value) {
-    return value == null ? '' : (value + '');
-  }
-
-  /**
-   * Used by `_.trim` and `_.trimLeft` to get the index of the first character
-   * of `string` that is not found in `chars`.
-   *
-   * @private
-   * @param {string} string The string to inspect.
-   * @param {string} chars The characters to find.
-   * @returns {number} Returns the index of the first character not found in `chars`.
-   */
-  function charsLeftIndex(string, chars) {
-    var index = -1,
-        length = string.length;
-
-    while (++index < length && chars.indexOf(string.charAt(index)) > -1) {}
-    return index;
-  }
-
-  /**
-   * Used by `_.trim` and `_.trimRight` to get the index of the last character
-   * of `string` that is not found in `chars`.
-   *
-   * @private
-   * @param {string} string The string to inspect.
-   * @param {string} chars The characters to find.
-   * @returns {number} Returns the index of the last character not found in `chars`.
-   */
-  function charsRightIndex(string, chars) {
-    var index = string.length;
-
-    while (index-- && chars.indexOf(string.charAt(index)) > -1) {}
-    return index;
-  }
-
-  /**
-   * Used by `_.sortBy` to compare transformed elements of a collection and stable
-   * sort them in ascending order.
-   *
-   * @private
-   * @param {Object} object The object to compare.
-   * @param {Object} other The other object to compare.
-   * @returns {number} Returns the sort order indicator for `object`.
-   */
-  function compareAscending(object, other) {
-    return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index);
-  }
-
-  /**
-   * Used by `_.sortByOrder` to compare multiple properties of a value to another
-   * and stable sort them.
-   *
-   * If `orders` is unspecified, all valuess are sorted in ascending order. Otherwise,
-   * a value is sorted in ascending order if its corresponding order is "asc", and
-   * descending if "desc".
-   *
-   * @private
-   * @param {Object} object The object to compare.
-   * @param {Object} other The other object to compare.
-   * @param {boolean[]} orders The order to sort by for each property.
-   * @returns {number} Returns the sort order indicator for `object`.
-   */
-  function compareMultiple(object, other, orders) {
-    var index = -1,
-        objCriteria = object.criteria,
-        othCriteria = other.criteria,
-        length = objCriteria.length,
-        ordersLength = orders.length;
-
-    while (++index < length) {
-      var result = baseCompareAscending(objCriteria[index], othCriteria[index]);
-      if (result) {
-        if (index >= ordersLength) {
-          return result;
-        }
-        var order = orders[index];
-        return result * ((order === 'asc' || order === true) ? 1 : -1);
-      }
-    }
-    // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
-    // that causes it, under certain circumstances, to provide the same value for
-    // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
-    // for more details.
-    //
-    // This also ensures a stable sort in V8 and other engines.
-    // See https://code.google.com/p/v8/issues/detail?id=90 for more details.
-    return object.index - other.index;
-  }
-
-  /**
-   * Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
-   *
-   * @private
-   * @param {string} letter The matched letter to deburr.
-   * @returns {string} Returns the deburred letter.
-   */
-  function deburrLetter(letter) {
-    return deburredLetters[letter];
-  }
-
-  /**
-   * Used by `_.escape` to convert characters to HTML entities.
-   *
-   * @private
-   * @param {string} chr The matched character to escape.
-   * @returns {string} Returns the escaped character.
-   */
-  function escapeHtmlChar(chr) {
-    return htmlEscapes[chr];
-  }
-
-  /**
-   * Used by `_.escapeRegExp` to escape characters for inclusion in compiled regexes.
-   *
-   * @private
-   * @param {string} chr The matched character to escape.
-   * @param {string} leadingChar The capture group for a leading character.
-   * @param {string} whitespaceChar The capture group for a whitespace character.
-   * @returns {string} Returns the escaped character.
-   */
-  function escapeRegExpChar(chr, leadingChar, whitespaceChar) {
-    if (leadingChar) {
-      chr = regexpEscapes[chr];
-    } else if (whitespaceChar) {
-      chr = stringEscapes[chr];
-    }
-    return '\\' + chr;
-  }
-
-  /**
-   * Used by `_.template` to escape characters for inclusion in compiled string literals.
-   *
-   * @private
-   * @param {string} chr The matched character to escape.
-   * @returns {string} Returns the escaped character.
-   */
-  function escapeStringChar(chr) {
-    return '\\' + stringEscapes[chr];
-  }
-
-  /**
-   * Gets the index at which the first occurrence of `NaN` is found in `array`.
-   *
-   * @private
-   * @param {Array} array The array to search.
-   * @param {number} fromIndex The index to search from.
-   * @param {boolean} [fromRight] Specify iterating from right to left.
-   * @returns {number} Returns the index of the matched `NaN`, else `-1`.
-   */
-  function indexOfNaN(array, fromIndex, fromRight) {
-    var length = array.length,
-        index = fromIndex + (fromRight ? 0 : -1);
-
-    while ((fromRight ? index-- : ++index < length)) {
-      var other = array[index];
-      if (other !== other) {
-        return index;
-      }
-    }
-    return -1;
-  }
-
-  /**
-   * Checks if `value` is object-like.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
-   */
-  function isObjectLike(value) {
-    return !!value && typeof value == 'object';
-  }
-
-  /**
-   * Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
-   * character code is whitespace.
-   *
-   * @private
-   * @param {number} charCode The character code to inspect.
-   * @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
-   */
-  function isSpace(charCode) {
-    return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 ||
-      (charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279)));
-  }
-
-  /**
-   * Replaces all `placeholder` elements in `array` with an internal placeholder
-   * and returns an array of their indexes.
-   *
-   * @private
-   * @param {Array} array The array to modify.
-   * @param {*} placeholder The placeholder to replace.
-   * @returns {Array} Returns the new array of placeholder indexes.
-   */
-  function replaceHolders(array, placeholder) {
-    var index = -1,
-        length = array.length,
-        resIndex = -1,
-        result = [];
-
-    while (++index < length) {
-      if (array[index] === placeholder) {
-        array[index] = PLACEHOLDER;
-        result[++resIndex] = index;
-      }
-    }
-    return result;
-  }
-
-  /**
-   * An implementation of `_.uniq` optimized for sorted arrays without support
-   * for callback shorthands and `this` binding.
-   *
-   * @private
-   * @param {Array} array The array to inspect.
-   * @param {Function} [iteratee] The function invoked per iteration.
-   * @returns {Array} Returns the new duplicate-value-free array.
-   */
-  function sortedUniq(array, iteratee) {
-    var seen,
-        index = -1,
-        length = array.length,
-        resIndex = -1,
-        result = [];
-
-    while (++index < length) {
-      var value = array[index],
-          computed = iteratee ? iteratee(value, index, array) : value;
-
-      if (!index || seen !== computed) {
-        seen = computed;
-        result[++resIndex] = value;
-      }
-    }
-    return result;
-  }
-
-  /**
-   * Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace
-   * character of `string`.
-   *
-   * @private
-   * @param {string} string The string to inspect.
-   * @returns {number} Returns the index of the first non-whitespace character.
-   */
-  function trimmedLeftIndex(string) {
-    var index = -1,
-        length = string.length;
-
-    while (++index < length && isSpace(string.charCodeAt(index))) {}
-    return index;
-  }
-
-  /**
-   * Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
-   * character of `string`.
-   *
-   * @private
-   * @param {string} string The string to inspect.
-   * @returns {number} Returns the index of the last non-whitespace character.
-   */
-  function trimmedRightIndex(string) {
-    var index = string.length;
-
-    while (index-- && isSpace(string.charCodeAt(index))) {}
-    return index;
-  }
-
-  /**
-   * Used by `_.unescape` to convert HTML entities to characters.
-   *
-   * @private
-   * @param {string} chr The matched character to unescape.
-   * @returns {string} Returns the unescaped character.
-   */
-  function unescapeHtmlChar(chr) {
-    return htmlUnescapes[chr];
-  }
-
-  /*--------------------------------------------------------------------------*/
-
-  /**
-   * Create a new pristine `lodash` function using the given `context` object.
-   *
-   * @static
-   * @memberOf _
-   * @category Utility
-   * @param {Object} [context=root] The context object.
-   * @returns {Function} Returns a new `lodash` function.
-   * @example
-   *
-   * _.mixin({ 'foo': _.constant('foo') });
-   *
-   * var lodash = _.runInContext();
-   * lodash.mixin({ 'bar': lodash.constant('bar') });
-   *
-   * _.isFunction(_.foo);
-   * // => true
-   * _.isFunction(_.bar);
-   * // => false
-   *
-   * lodash.isFunction(lodash.foo);
-   * // => false
-   * lodash.isFunction(lodash.bar);
-   * // => true
-   *
-   * // using `context` to mock `Date#getTime` use in `_.now`
-   * var mock = _.runInContext({
-   *   'Date': function() {
-   *     return { 'getTime': getTimeMock };
-   *   }
-   * });
-   *
-   * // or creating a suped-up `defer` in Node.js
-   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
-   */
-  function runInContext(context) {
-    // Avoid issues with some ES3 environments that attempt to use values, named
-    // after built-in constructors like `Object`, for the creation of literals.
-    // ES5 clears this up by stating that literals must use built-in constructors.
-    // See https://es5.github.io/#x11.1.5 for more details.
-    context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
-
-    /** Native constructor references. */
-    var Array = context.Array,
-        Date = context.Date,
-        Error = context.Error,
-        Function = context.Function,
-        Math = context.Math,
-        Number = context.Number,
-        Object = context.Object,
-        RegExp = context.RegExp,
-        String = context.String,
-        TypeError = context.TypeError;
-
-    /** Used for native method references. */
-    var arrayProto = Array.prototype,
-        objectProto = Object.prototype,
-        stringProto = String.prototype;
-
-    /** Used to resolve the decompiled source of functions. */
-    var fnToString = Function.prototype.toString;
-
-    /** Used to check objects for own properties. */
-    var hasOwnProperty = objectProto.hasOwnProperty;
-
-    /** Used to generate unique IDs. */
-    var idCounter = 0;
-
-    /**
-     * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
-     * of values.
-     */
-    var objToString = objectProto.toString;
-
-    /** Used to restore the original `_` reference in `_.noConflict`. */
-    var oldDash = root._;
-
-    /** Used to detect if a method is native. */
-    var reIsNative = RegExp('^' +
-      fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
-      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-    );
-
-    /** Native method references. */
-    var ArrayBuffer = context.ArrayBuffer,
-        clearTimeout = context.clearTimeout,
-        parseFloat = context.parseFloat,
-        pow = Math.pow,
-        propertyIsEnumerable = objectProto.propertyIsEnumerable,
-        Set = getNative(context, 'Set'),
-        setTimeout = context.setTimeout,
-        splice = arrayProto.splice,
-        Uint8Array = context.Uint8Array,
-        WeakMap = getNative(context, 'WeakMap');
-
-    /* Native method references for those with the same name as other `lodash` methods. */
-    var nativeCeil = Math.ceil,
-        nativeCreate = getNative(Object, 'create'),
-        nativeFloor = Math.floor,
-        nativeIsArray = getNative(Array, 'isArray'),
-        nativeIsFinite = context.isFinite,
-        nativeKeys = getNative(Object, 'keys'),
-        nativeMax = Math.max,
-        nativeMin = Math.min,
-        nativeNow = getNative(Date, 'now'),
-        nativeParseInt = context.parseInt,
-        nativeRandom = Math.random;
-
-    /** Used as references for `-Infinity` and `Infinity`. */
-    var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY,
-        POSITIVE_INFINITY = Number.POSITIVE_INFINITY;
-
-    /** Used as references for the maximum length and index of an array. */
-    var MAX_ARRAY_LENGTH = 4294967295,
-        MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
-        HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
-
-    /**
-     * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
-     * of an array-like value.
-     */
-    var MAX_SAFE_INTEGER = 9007199254740991;
-
-    /** Used to store function metadata. */
-    var metaMap = WeakMap && new WeakMap;
-
-    /** Used to lookup unminified function names. */
-    var realNames = {};
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a `lodash` object which wraps `value` to enable implicit chaining.
-     * Methods that operate on and return arrays, collections, and functions can
-     * be chained together. Methods that retrieve a single value or may return a
-     * primitive value will automatically end the chain returning the unwrapped
-     * value. Explicit chaining may be enabled using `_.chain`. The execution of
-     * chained methods is lazy, that is, execution is deferred until `_#value`
-     * is implicitly or explicitly called.
-     *
-     * Lazy evaluation allows several methods to support shortcut fusion. Shortcut
-     * fusion is an optimization strategy which merge iteratee calls; this can help
-     * to avoid the creation of intermediate data structures and greatly reduce the
-     * number of iteratee executions.
-     *
-     * Chaining is supported in custom builds as long as the `_#value` method is
-     * directly or indirectly included in the build.
-     *
-     * In addition to lodash methods, wrappers have `Array` and `String` methods.
-     *
-     * The wrapper `Array` methods are:
-     * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`,
-     * `splice`, and `unshift`
-     *
-     * The wrapper `String` methods are:
-     * `replace` and `split`
-     *
-     * The wrapper methods that support shortcut fusion are:
-     * `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`,
-     * `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`,
-     * `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`,
-     * and `where`
-     *
-     * The chainable wrapper methods are:
-     * `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
-     * `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`,
-     * `countBy`, `create`, `curry`, `debounce`, `defaults`, `defaultsDeep`,
-     * `defer`, `delay`, `difference`, `drop`, `dropRight`, `dropRightWhile`,
-     * `dropWhile`, `fill`, `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`,
-     * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
-     * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
-     * `invoke`, `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`,
-     * `matchesProperty`, `memoize`, `merge`, `method`, `methodOf`, `mixin`,
-     * `modArgs`, `negate`, `omit`, `once`, `pairs`, `partial`, `partialRight`,
-     * `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`,
-     * `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `restParam`,
-     * `reverse`, `set`, `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`,
-     * `sortByOrder`, `splice`, `spread`, `take`, `takeRight`, `takeRightWhile`,
-     * `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`,
-     * `transform`, `union`, `uniq`, `unshift`, `unzip`, `unzipWith`, `values`,
-     * `valuesIn`, `where`, `without`, `wrap`, `xor`, `zip`, `zipObject`, `zipWith`
-     *
-     * The wrapper methods that are **not** chainable by default are:
-     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clone`, `cloneDeep`,
-     * `deburr`, `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`,
-     * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`,
-     * `floor`, `get`, `gt`, `gte`, `has`, `identity`, `includes`, `indexOf`,
-     * `inRange`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
-     * `isEmpty`, `isEqual`, `isError`, `isFinite` `isFunction`, `isMatch`,
-     * `isNative`, `isNaN`, `isNull`, `isNumber`, `isObject`, `isPlainObject`,
-     * `isRegExp`, `isString`, `isUndefined`, `isTypedArray`, `join`, `kebabCase`,
-     * `last`, `lastIndexOf`, `lt`, `lte`, `max`, `min`, `noConflict`, `noop`,
-     * `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`, `random`, `reduce`,
-     * `reduceRight`, `repeat`, `result`, `round`, `runInContext`, `shift`, `size`,
-     * `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`, `startCase`,
-     * `startsWith`, `sum`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`,
-     * `unescape`, `uniqueId`, `value`, and `words`
-     *
-     * The wrapper method `sample` will return a wrapped value when `n` is provided,
-     * otherwise an unwrapped value is returned.
-     *
-     * @name _
-     * @constructor
-     * @category Chain
-     * @param {*} value The value to wrap in a `lodash` instance.
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var wrapped = _([1, 2, 3]);
-     *
-     * // returns an unwrapped value
-     * wrapped.reduce(function(total, n) {
-     *   return total + n;
-     * });
-     * // => 6
-     *
-     * // returns a wrapped value
-     * var squares = wrapped.map(function(n) {
-     *   return n * n;
-     * });
-     *
-     * _.isArray(squares);
-     * // => false
-     *
-     * _.isArray(squares.value());
-     * // => true
-     */
-    function lodash(value) {
-      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
-        if (value instanceof LodashWrapper) {
-          return value;
-        }
-        if (hasOwnProperty.call(value, '__chain__') && hasOwnProperty.call(value, '__wrapped__')) {
-          return wrapperClone(value);
-        }
-      }
-      return new LodashWrapper(value);
-    }
-
-    /**
-     * The function whose prototype all chaining wrappers inherit from.
-     *
-     * @private
-     */
-    function baseLodash() {
-      // No operation performed.
-    }
-
-    /**
-     * The base constructor for creating `lodash` wrapper objects.
-     *
-     * @private
-     * @param {*} value The value to wrap.
-     * @param {boolean} [chainAll] Enable chaining for all wrapper methods.
-     * @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value.
-     */
-    function LodashWrapper(value, chainAll, actions) {
-      this.__wrapped__ = value;
-      this.__actions__ = actions || [];
-      this.__chain__ = !!chainAll;
-    }
-
-    /**
-     * An object environment feature flags.
-     *
-     * @static
-     * @memberOf _
-     * @type Object
-     */
-    var support = lodash.support = {};
-
-    /**
-     * By default, the template delimiters used by lodash are like those in
-     * embedded Ruby (ERB). Change the following template settings to use
-     * alternative delimiters.
-     *
-     * @static
-     * @memberOf _
-     * @type Object
-     */
-    lodash.templateSettings = {
-
-      /**
-       * Used to detect `data` property values to be HTML-escaped.
-       *
-       * @memberOf _.templateSettings
-       * @type RegExp
-       */
-      'escape': reEscape,
-
-      /**
-       * Used to detect code to be evaluated.
-       *
-       * @memberOf _.templateSettings
-       * @type RegExp
-       */
-      'evaluate': reEvaluate,
-
-      /**
-       * Used to detect `data` property values to inject.
-       *
-       * @memberOf _.templateSettings
-       * @type RegExp
-       */
-      'interpolate': reInterpolate,
-
-      /**
-       * Used to reference the data object in the template text.
-       *
-       * @memberOf _.templateSettings
-       * @type string
-       */
-      'variable': '',
-
-      /**
-       * Used to import variables into the compiled template.
-       *
-       * @memberOf _.templateSettings
-       * @type Object
-       */
-      'imports': {
-
-        /**
-         * A reference to the `lodash` function.
-         *
-         * @memberOf _.templateSettings.imports
-         * @type Function
-         */
-        '_': lodash
-      }
-    };
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
-     *
-     * @private
-     * @param {*} value The value to wrap.
-     */
-    function LazyWrapper(value) {
-      this.__wrapped__ = value;
-      this.__actions__ = [];
-      this.__dir__ = 1;
-      this.__filtered__ = false;
-      this.__iteratees__ = [];
-      this.__takeCount__ = POSITIVE_INFINITY;
-      this.__views__ = [];
-    }
-
-    /**
-     * Creates a clone of the lazy wrapper object.
-     *
-     * @private
-     * @name clone
-     * @memberOf LazyWrapper
-     * @returns {Object} Returns the cloned `LazyWrapper` object.
-     */
-    function lazyClone() {
-      var result = new LazyWrapper(this.__wrapped__);
-      result.__actions__ = arrayCopy(this.__actions__);
-      result.__dir__ = this.__dir__;
-      result.__filtered__ = this.__filtered__;
-      result.__iteratees__ = arrayCopy(this.__iteratees__);
-      result.__takeCount__ = this.__takeCount__;
-      result.__views__ = arrayCopy(this.__views__);
-      return result;
-    }
-
-    /**
-     * Reverses the direction of lazy iteration.
-     *
-     * @private
-     * @name reverse
-     * @memberOf LazyWrapper
-     * @returns {Object} Returns the new reversed `LazyWrapper` object.
-     */
-    function lazyReverse() {
-      if (this.__filtered__) {
-        var result = new LazyWrapper(this);
-        result.__dir__ = -1;
-        result.__filtered__ = true;
-      } else {
-        result = this.clone();
-        result.__dir__ *= -1;
-      }
-      return result;
-    }
-
-    /**
-     * Extracts the unwrapped value from its lazy wrapper.
-     *
-     * @private
-     * @name value
-     * @memberOf LazyWrapper
-     * @returns {*} Returns the unwrapped value.
-     */
-    function lazyValue() {
-      var array = this.__wrapped__.value(),
-          dir = this.__dir__,
-          isArr = isArray(array),
-          isRight = dir < 0,
-          arrLength = isArr ? array.length : 0,
-          view = getView(0, arrLength, this.__views__),
-          start = view.start,
-          end = view.end,
-          length = end - start,
-          index = isRight ? end : (start - 1),
-          iteratees = this.__iteratees__,
-          iterLength = iteratees.length,
-          resIndex = 0,
-          takeCount = nativeMin(length, this.__takeCount__);
-
-      if (!isArr || arrLength < LARGE_ARRAY_SIZE || (arrLength == length && takeCount == length)) {
-        return baseWrapperValue((isRight && isArr) ? array.reverse() : array, this.__actions__);
-      }
-      var result = [];
-
-      outer:
-      while (length-- && resIndex < takeCount) {
-        index += dir;
-
-        var iterIndex = -1,
-            value = array[index];
-
-        while (++iterIndex < iterLength) {
-          var data = iteratees[iterIndex],
-              iteratee = data.iteratee,
-              type = data.type,
-              computed = iteratee(value);
-
-          if (type == LAZY_MAP_FLAG) {
-            value = computed;
-          } else if (!computed) {
-            if (type == LAZY_FILTER_FLAG) {
-              continue outer;
-            } else {
-              break outer;
-            }
-          }
-        }
-        result[resIndex++] = value;
-      }
-      return result;
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a cache object to store key/value pairs.
-     *
-     * @private
-     * @static
-     * @name Cache
-     * @memberOf _.memoize
-     */
-    function MapCache() {
-      this.__data__ = {};
-    }
-
-    /**
-     * Removes `key` and its value from the cache.
-     *
-     * @private
-     * @name delete
-     * @memberOf _.memoize.Cache
-     * @param {string} key The key of the value to remove.
-     * @returns {boolean} Returns `true` if the entry was removed successfully, else `false`.
-     */
-    function mapDelete(key) {
-      return this.has(key) && delete this.__data__[key];
-    }
-
-    /**
-     * Gets the cached value for `key`.
-     *
-     * @private
-     * @name get
-     * @memberOf _.memoize.Cache
-     * @param {string} key The key of the value to get.
-     * @returns {*} Returns the cached value.
-     */
-    function mapGet(key) {
-      return key == '__proto__' ? undefined : this.__data__[key];
-    }
-
-    /**
-     * Checks if a cached value for `key` exists.
-     *
-     * @private
-     * @name has
-     * @memberOf _.memoize.Cache
-     * @param {string} key The key of the entry to check.
-     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
-     */
-    function mapHas(key) {
-      return key != '__proto__' && hasOwnProperty.call(this.__data__, key);
-    }
-
-    /**
-     * Sets `value` to `key` of the cache.
-     *
-     * @private
-     * @name set
-     * @memberOf _.memoize.Cache
-     * @param {string} key The key of the value to cache.
-     * @param {*} value The value to cache.
-     * @returns {Object} Returns the cache object.
-     */
-    function mapSet(key, value) {
-      if (key != '__proto__') {
-        this.__data__[key] = value;
-      }
-      return this;
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     *
-     * Creates a cache object to store unique values.
-     *
-     * @private
-     * @param {Array} [values] The values to cache.
-     */
-    function SetCache(values) {
-      var length = values ? values.length : 0;
-
-      this.data = { 'hash': nativeCreate(null), 'set': new Set };
-      while (length--) {
-        this.push(values[length]);
-      }
-    }
-
-    /**
-     * Checks if `value` is in `cache` mimicking the return signature of
-     * `_.indexOf` by returning `0` if the value is found, else `-1`.
-     *
-     * @private
-     * @param {Object} cache The cache to search.
-     * @param {*} value The value to search for.
-     * @returns {number} Returns `0` if `value` is found, else `-1`.
-     */
-    function cacheIndexOf(cache, value) {
-      var data = cache.data,
-          result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value];
-
-      return result ? 0 : -1;
-    }
-
-    /**
-     * Adds `value` to the cache.
-     *
-     * @private
-     * @name push
-     * @memberOf SetCache
-     * @param {*} value The value to cache.
-     */
-    function cachePush(value) {
-      var data = this.data;
-      if (typeof value == 'string' || isObject(value)) {
-        data.set.add(value);
-      } else {
-        data.hash[value] = true;
-      }
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a new array joining `array` with `other`.
-     *
-     * @private
-     * @param {Array} array The array to join.
-     * @param {Array} other The other array to join.
-     * @returns {Array} Returns the new concatenated array.
-     */
-    function arrayConcat(array, other) {
-      var index = -1,
-          length = array.length,
-          othIndex = -1,
-          othLength = other.length,
-          result = Array(length + othLength);
-
-      while (++index < length) {
-        result[index] = array[index];
-      }
-      while (++othIndex < othLength) {
-        result[index++] = other[othIndex];
-      }
-      return result;
-    }
-
-    /**
-     * Copies the values of `source` to `array`.
-     *
-     * @private
-     * @param {Array} source The array to copy values from.
-     * @param {Array} [array=[]] The array to copy values to.
-     * @returns {Array} Returns `array`.
-     */
-    function arrayCopy(source, array) {
-      var index = -1,
-          length = source.length;
-
-      array || (array = Array(length));
-      while (++index < length) {
-        array[index] = source[index];
-      }
-      return array;
-    }
-
-    /**
-     * A specialized version of `_.forEach` for arrays without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array} Returns `array`.
-     */
-    function arrayEach(array, iteratee) {
-      var index = -1,
-          length = array.length;
-
-      while (++index < length) {
-        if (iteratee(array[index], index, array) === false) {
-          break;
-        }
-      }
-      return array;
-    }
-
-    /**
-     * A specialized version of `_.forEachRight` for arrays without support for
-     * callback shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array} Returns `array`.
-     */
-    function arrayEachRight(array, iteratee) {
-      var length = array.length;
-
-      while (length--) {
-        if (iteratee(array[length], length, array) === false) {
-          break;
-        }
-      }
-      return array;
-    }
-
-    /**
-     * A specialized version of `_.every` for arrays without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {boolean} Returns `true` if all elements pass the predicate check,
-     *  else `false`.
-     */
-    function arrayEvery(array, predicate) {
-      var index = -1,
-          length = array.length;
-
-      while (++index < length) {
-        if (!predicate(array[index], index, array)) {
-          return false;
-        }
-      }
-      return true;
-    }
-
-    /**
-     * A specialized version of `baseExtremum` for arrays which invokes `iteratee`
-     * with one argument: (value).
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {Function} comparator The function used to compare values.
-     * @param {*} exValue The initial extremum value.
-     * @returns {*} Returns the extremum value.
-     */
-    function arrayExtremum(array, iteratee, comparator, exValue) {
-      var index = -1,
-          length = array.length,
-          computed = exValue,
-          result = computed;
-
-      while (++index < length) {
-        var value = array[index],
-            current = +iteratee(value);
-
-        if (comparator(current, computed)) {
-          computed = current;
-          result = value;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * A specialized version of `_.filter` for arrays without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {Array} Returns the new filtered array.
-     */
-    function arrayFilter(array, predicate) {
-      var index = -1,
-          length = array.length,
-          resIndex = -1,
-          result = [];
-
-      while (++index < length) {
-        var value = array[index];
-        if (predicate(value, index, array)) {
-          result[++resIndex] = value;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * A specialized version of `_.map` for arrays without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array} Returns the new mapped array.
-     */
-    function arrayMap(array, iteratee) {
-      var index = -1,
-          length = array.length,
-          result = Array(length);
-
-      while (++index < length) {
-        result[index] = iteratee(array[index], index, array);
-      }
-      return result;
-    }
-
-    /**
-     * Appends the elements of `values` to `array`.
-     *
-     * @private
-     * @param {Array} array The array to modify.
-     * @param {Array} values The values to append.
-     * @returns {Array} Returns `array`.
-     */
-    function arrayPush(array, values) {
-      var index = -1,
-          length = values.length,
-          offset = array.length;
-
-      while (++index < length) {
-        array[offset + index] = values[index];
-      }
-      return array;
-    }
-
-    /**
-     * A specialized version of `_.reduce` for arrays without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {*} [accumulator] The initial value.
-     * @param {boolean} [initFromArray] Specify using the first element of `array`
-     *  as the initial value.
-     * @returns {*} Returns the accumulated value.
-     */
-    function arrayReduce(array, iteratee, accumulator, initFromArray) {
-      var index = -1,
-          length = array.length;
-
-      if (initFromArray && length) {
-        accumulator = array[++index];
-      }
-      while (++index < length) {
-        accumulator = iteratee(accumulator, array[index], index, array);
-      }
-      return accumulator;
-    }
-
-    /**
-     * A specialized version of `_.reduceRight` for arrays without support for
-     * callback shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {*} [accumulator] The initial value.
-     * @param {boolean} [initFromArray] Specify using the last element of `array`
-     *  as the initial value.
-     * @returns {*} Returns the accumulated value.
-     */
-    function arrayReduceRight(array, iteratee, accumulator, initFromArray) {
-      var length = array.length;
-      if (initFromArray && length) {
-        accumulator = array[--length];
-      }
-      while (length--) {
-        accumulator = iteratee(accumulator, array[length], length, array);
-      }
-      return accumulator;
-    }
-
-    /**
-     * A specialized version of `_.some` for arrays without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {boolean} Returns `true` if any element passes the predicate check,
-     *  else `false`.
-     */
-    function arraySome(array, predicate) {
-      var index = -1,
-          length = array.length;
-
-      while (++index < length) {
-        if (predicate(array[index], index, array)) {
-          return true;
-        }
-      }
-      return false;
-    }
-
-    /**
-     * A specialized version of `_.sum` for arrays without support for callback
-     * shorthands and `this` binding..
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {number} Returns the sum.
-     */
-    function arraySum(array, iteratee) {
-      var length = array.length,
-          result = 0;
-
-      while (length--) {
-        result += +iteratee(array[length]) || 0;
-      }
-      return result;
-    }
-
-    /**
-     * Used by `_.defaults` to customize its `_.assign` use.
-     *
-     * @private
-     * @param {*} objectValue The destination object property value.
-     * @param {*} sourceValue The source object property value.
-     * @returns {*} Returns the value to assign to the destination object.
-     */
-    function assignDefaults(objectValue, sourceValue) {
-      return objectValue === undefined ? sourceValue : objectValue;
-    }
-
-    /**
-     * Used by `_.template` to customize its `_.assign` use.
-     *
-     * **Note:** This function is like `assignDefaults` except that it ignores
-     * inherited property values when checking if a property is `undefined`.
-     *
-     * @private
-     * @param {*} objectValue The destination object property value.
-     * @param {*} sourceValue The source object property value.
-     * @param {string} key The key associated with the object and source values.
-     * @param {Object} object The destination object.
-     * @returns {*} Returns the value to assign to the destination object.
-     */
-    function assignOwnDefaults(objectValue, sourceValue, key, object) {
-      return (objectValue === undefined || !hasOwnProperty.call(object, key))
-        ? sourceValue
-        : objectValue;
-    }
-
-    /**
-     * A specialized version of `_.assign` for customizing assigned values without
-     * support for argument juggling, multiple sources, and `this` binding `customizer`
-     * functions.
-     *
-     * @private
-     * @param {Object} object The destination object.
-     * @param {Object} source The source object.
-     * @param {Function} customizer The function to customize assigned values.
-     * @returns {Object} Returns `object`.
-     */
-    function assignWith(object, source, customizer) {
-      var index = -1,
-          props = keys(source),
-          length = props.length;
-
-      while (++index < length) {
-        var key = props[index],
-            value = object[key],
-            result = customizer(value, source[key], key, object, source);
-
-        if ((result === result ? (result !== value) : (value === value)) ||
-            (value === undefined && !(key in object))) {
-          object[key] = result;
-        }
-      }
-      return object;
-    }
-
-    /**
-     * The base implementation of `_.assign` without support for argument juggling,
-     * multiple sources, and `customizer` functions.
-     *
-     * @private
-     * @param {Object} object The destination object.
-     * @param {Object} source The source object.
-     * @returns {Object} Returns `object`.
-     */
-    function baseAssign(object, source) {
-      return source == null
-        ? object
-        : baseCopy(source, keys(source), object);
-    }
-
-    /**
-     * The base implementation of `_.at` without support for string collections
-     * and individual key arguments.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {number[]|string[]} props The property names or indexes of elements to pick.
-     * @returns {Array} Returns the new array of picked elements.
-     */
-    function baseAt(collection, props) {
-      var index = -1,
-          isNil = collection == null,
-          isArr = !isNil && isArrayLike(collection),
-          length = isArr ? collection.length : 0,
-          propsLength = props.length,
-          result = Array(propsLength);
-
-      while(++index < propsLength) {
-        var key = props[index];
-        if (isArr) {
-          result[index] = isIndex(key, length) ? collection[key] : undefined;
-        } else {
-          result[index] = isNil ? undefined : collection[key];
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Copies properties of `source` to `object`.
-     *
-     * @private
-     * @param {Object} source The object to copy properties from.
-     * @param {Array} props The property names to copy.
-     * @param {Object} [object={}] The object to copy properties to.
-     * @returns {Object} Returns `object`.
-     */
-    function baseCopy(source, props, object) {
-      object || (object = {});
-
-      var index = -1,
-          length = props.length;
-
-      while (++index < length) {
-        var key = props[index];
-        object[key] = source[key];
-      }
-      return object;
-    }
-
-    /**
-     * The base implementation of `_.callback` which supports specifying the
-     * number of arguments to provide to `func`.
-     *
-     * @private
-     * @param {*} [func=_.identity] The value to convert to a callback.
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @param {number} [argCount] The number of arguments to provide to `func`.
-     * @returns {Function} Returns the callback.
-     */
-    function baseCallback(func, thisArg, argCount) {
-      var type = typeof func;
-      if (type == 'function') {
-        return thisArg === undefined
-          ? func
-          : bindCallback(func, thisArg, argCount);
-      }
-      if (func == null) {
-        return identity;
-      }
-      if (type == 'object') {
-        return baseMatches(func);
-      }
-      return thisArg === undefined
-        ? property(func)
-        : baseMatchesProperty(func, thisArg);
-    }
-
-    /**
-     * The base implementation of `_.clone` without support for argument juggling
-     * and `this` binding `customizer` functions.
-     *
-     * @private
-     * @param {*} value The value to clone.
-     * @param {boolean} [isDeep] Specify a deep clone.
-     * @param {Function} [customizer] The function to customize cloning values.
-     * @param {string} [key] The key of `value`.
-     * @param {Object} [object] The object `value` belongs to.
-     * @param {Array} [stackA=[]] Tracks traversed source objects.
-     * @param {Array} [stackB=[]] Associates clones with source counterparts.
-     * @returns {*} Returns the cloned value.
-     */
-    function baseClone(value, isDeep, customizer, key, object, stackA, stackB) {
-      var result;
-      if (customizer) {
-        result = object ? customizer(value, key, object) : customizer(value);
-      }
-      if (result !== undefined) {
-        return result;
-      }
-      if (!isObject(value)) {
-        return value;
-      }
-      var isArr = isArray(value);
-      if (isArr) {
-        result = initCloneArray(value);
-        if (!isDeep) {
-          return arrayCopy(value, result);
-        }
-      } else {
-        var tag = objToString.call(value),
-            isFunc = tag == funcTag;
-
-        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
-          result = initCloneObject(isFunc ? {} : value);
-          if (!isDeep) {
-            return baseAssign(result, value);
-          }
-        } else {
-          return cloneableTags[tag]
-            ? initCloneByTag(value, tag, isDeep)
-            : (object ? value : {});
-        }
-      }
-      // Check for circular references and return its corresponding clone.
-      stackA || (stackA = []);
-      stackB || (stackB = []);
-
-      var length = stackA.length;
-      while (length--) {
-        if (stackA[length] == value) {
-          return stackB[length];
-        }
-      }
-      // Add the source value to the stack of traversed objects and associate it with its clone.
-      stackA.push(value);
-      stackB.push(result);
-
-      // Recursively populate clone (susceptible to call stack limits).
-      (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
-        result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB);
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.create` without support for assigning
-     * properties to the created object.
-     *
-     * @private
-     * @param {Object} prototype The object to inherit from.
-     * @returns {Object} Returns the new object.
-     */
-    var baseCreate = (function() {
-      function object() {}
-      return function(prototype) {
-        if (isObject(prototype)) {
-          object.prototype = prototype;
-          var result = new object;
-          object.prototype = undefined;
-        }
-        return result || {};
-      };
-    }());
-
-    /**
-     * The base implementation of `_.delay` and `_.defer` which accepts an index
-     * of where to slice the arguments to provide to `func`.
-     *
-     * @private
-     * @param {Function} func The function to delay.
-     * @param {number} wait The number of milliseconds to delay invocation.
-     * @param {Object} args The arguments provide to `func`.
-     * @returns {number} Returns the timer id.
-     */
-    function baseDelay(func, wait, args) {
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      return setTimeout(function() { func.apply(undefined, args); }, wait);
-    }
-
-    /**
-     * The base implementation of `_.difference` which accepts a single array
-     * of values to exclude.
-     *
-     * @private
-     * @param {Array} array The array to inspect.
-     * @param {Array} values The values to exclude.
-     * @returns {Array} Returns the new array of filtered values.
-     */
-    function baseDifference(array, values) {
-      var length = array ? array.length : 0,
-          result = [];
-
-      if (!length) {
-        return result;
-      }
-      var index = -1,
-          indexOf = getIndexOf(),
-          isCommon = indexOf == baseIndexOf,
-          cache = (isCommon && values.length >= LARGE_ARRAY_SIZE) ? createCache(values) : null,
-          valuesLength = values.length;
-
-      if (cache) {
-        indexOf = cacheIndexOf;
-        isCommon = false;
-        values = cache;
-      }
-      outer:
-      while (++index < length) {
-        var value = array[index];
-
-        if (isCommon && value === value) {
-          var valuesIndex = valuesLength;
-          while (valuesIndex--) {
-            if (values[valuesIndex] === value) {
-              continue outer;
-            }
-          }
-          result.push(value);
-        }
-        else if (indexOf(values, value, 0) < 0) {
-          result.push(value);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.forEach` without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array|Object|string} Returns `collection`.
-     */
-    var baseEach = createBaseEach(baseForOwn);
-
-    /**
-     * The base implementation of `_.forEachRight` without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array|Object|string} Returns `collection`.
-     */
-    var baseEachRight = createBaseEach(baseForOwnRight, true);
-
-    /**
-     * The base implementation of `_.every` without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {boolean} Returns `true` if all elements pass the predicate check,
-     *  else `false`
-     */
-    function baseEvery(collection, predicate) {
-      var result = true;
-      baseEach(collection, function(value, index, collection) {
-        result = !!predicate(value, index, collection);
-        return result;
-      });
-      return result;
-    }
-
-    /**
-     * Gets the extremum value of `collection` invoking `iteratee` for each value
-     * in `collection` to generate the criterion by which the value is ranked.
-     * The `iteratee` is invoked with three arguments: (value, index|key, collection).
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {Function} comparator The function used to compare values.
-     * @param {*} exValue The initial extremum value.
-     * @returns {*} Returns the extremum value.
-     */
-    function baseExtremum(collection, iteratee, comparator, exValue) {
-      var computed = exValue,
-          result = computed;
-
-      baseEach(collection, function(value, index, collection) {
-        var current = +iteratee(value, index, collection);
-        if (comparator(current, computed) || (current === exValue && current === result)) {
-          computed = current;
-          result = value;
-        }
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.fill` without an iteratee call guard.
-     *
-     * @private
-     * @param {Array} array The array to fill.
-     * @param {*} value The value to fill `array` with.
-     * @param {number} [start=0] The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns `array`.
-     */
-    function baseFill(array, value, start, end) {
-      var length = array.length;
-
-      start = start == null ? 0 : (+start || 0);
-      if (start < 0) {
-        start = -start > length ? 0 : (length + start);
-      }
-      end = (end === undefined || end > length) ? length : (+end || 0);
-      if (end < 0) {
-        end += length;
-      }
-      length = start > end ? 0 : (end >>> 0);
-      start >>>= 0;
-
-      while (start < length) {
-        array[start++] = value;
-      }
-      return array;
-    }
-
-    /**
-     * The base implementation of `_.filter` without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {Array} Returns the new filtered array.
-     */
-    function baseFilter(collection, predicate) {
-      var result = [];
-      baseEach(collection, function(value, index, collection) {
-        if (predicate(value, index, collection)) {
-          result.push(value);
-        }
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`,
-     * without support for callback shorthands and `this` binding, which iterates
-     * over `collection` using the provided `eachFunc`.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to search.
-     * @param {Function} predicate The function invoked per iteration.
-     * @param {Function} eachFunc The function to iterate over `collection`.
-     * @param {boolean} [retKey] Specify returning the key of the found element
-     *  instead of the element itself.
-     * @returns {*} Returns the found element or its key, else `undefined`.
-     */
-    function baseFind(collection, predicate, eachFunc, retKey) {
-      var result;
-      eachFunc(collection, function(value, key, collection) {
-        if (predicate(value, key, collection)) {
-          result = retKey ? key : value;
-          return false;
-        }
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.flatten` with added support for restricting
-     * flattening and specifying the start index.
-     *
-     * @private
-     * @param {Array} array The array to flatten.
-     * @param {boolean} [isDeep] Specify a deep flatten.
-     * @param {boolean} [isStrict] Restrict flattening to arrays-like objects.
-     * @param {Array} [result=[]] The initial result value.
-     * @returns {Array} Returns the new flattened array.
-     */
-    function baseFlatten(array, isDeep, isStrict, result) {
-      result || (result = []);
-
-      var index = -1,
-          length = array.length;
-
-      while (++index < length) {
-        var value = array[index];
-        if (isObjectLike(value) && isArrayLike(value) &&
-            (isStrict || isArray(value) || isArguments(value))) {
-          if (isDeep) {
-            // Recursively flatten arrays (susceptible to call stack limits).
-            baseFlatten(value, isDeep, isStrict, result);
-          } else {
-            arrayPush(result, value);
-          }
-        } else if (!isStrict) {
-          result[result.length] = value;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `baseForIn` and `baseForOwn` which iterates
-     * over `object` properties returned by `keysFunc` invoking `iteratee` for
-     * each property. Iteratee functions may exit iteration early by explicitly
-     * returning `false`.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {Function} keysFunc The function to get the keys of `object`.
-     * @returns {Object} Returns `object`.
-     */
-    var baseFor = createBaseFor();
-
-    /**
-     * This function is like `baseFor` except that it iterates over properties
-     * in the opposite order.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {Function} keysFunc The function to get the keys of `object`.
-     * @returns {Object} Returns `object`.
-     */
-    var baseForRight = createBaseFor(true);
-
-    /**
-     * The base implementation of `_.forIn` without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     */
-    function baseForIn(object, iteratee) {
-      return baseFor(object, iteratee, keysIn);
-    }
-
-    /**
-     * The base implementation of `_.forOwn` without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     */
-    function baseForOwn(object, iteratee) {
-      return baseFor(object, iteratee, keys);
-    }
-
-    /**
-     * The base implementation of `_.forOwnRight` without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     */
-    function baseForOwnRight(object, iteratee) {
-      return baseForRight(object, iteratee, keys);
-    }
-
-    /**
-     * The base implementation of `_.functions` which creates an array of
-     * `object` function property names filtered from those provided.
-     *
-     * @private
-     * @param {Object} object The object to inspect.
-     * @param {Array} props The property names to filter.
-     * @returns {Array} Returns the new array of filtered property names.
-     */
-    function baseFunctions(object, props) {
-      var index = -1,
-          length = props.length,
-          resIndex = -1,
-          result = [];
-
-      while (++index < length) {
-        var key = props[index];
-        if (isFunction(object[key])) {
-          result[++resIndex] = key;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `get` without support for string paths
-     * and default values.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {Array} path The path of the property to get.
-     * @param {string} [pathKey] The key representation of path.
-     * @returns {*} Returns the resolved value.
-     */
-    function baseGet(object, path, pathKey) {
-      if (object == null) {
-        return;
-      }
-      if (pathKey !== undefined && pathKey in toObject(object)) {
-        path = [pathKey];
-      }
-      var index = 0,
-          length = path.length;
-
-      while (object != null && index < length) {
-        object = object[path[index++]];
-      }
-      return (index && index == length) ? object : undefined;
-    }
-
-    /**
-     * The base implementation of `_.isEqual` without support for `this` binding
-     * `customizer` functions.
-     *
-     * @private
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @param {Function} [customizer] The function to customize comparing values.
-     * @param {boolean} [isLoose] Specify performing partial comparisons.
-     * @param {Array} [stackA] Tracks traversed `value` objects.
-     * @param {Array} [stackB] Tracks traversed `other` objects.
-     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
-     */
-    function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) {
-      if (value === other) {
-        return true;
-      }
-      if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
-        return value !== value && other !== other;
-      }
-      return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB);
-    }
-
-    /**
-     * A specialized version of `baseIsEqual` for arrays and objects which performs
-     * deep comparisons and tracks traversed objects enabling objects with circular
-     * references to be compared.
-     *
-     * @private
-     * @param {Object} object The object to compare.
-     * @param {Object} other The other object to compare.
-     * @param {Function} equalFunc The function to determine equivalents of values.
-     * @param {Function} [customizer] The function to customize comparing objects.
-     * @param {boolean} [isLoose] Specify performing partial comparisons.
-     * @param {Array} [stackA=[]] Tracks traversed `value` objects.
-     * @param {Array} [stackB=[]] Tracks traversed `other` objects.
-     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
-     */
-    function baseIsEqualDeep(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
-      var objIsArr = isArray(object),
-          othIsArr = isArray(other),
-          objTag = arrayTag,
-          othTag = arrayTag;
-
-      if (!objIsArr) {
-        objTag = objToString.call(object);
-        if (objTag == argsTag) {
-          objTag = objectTag;
-        } else if (objTag != objectTag) {
-          objIsArr = isTypedArray(object);
-        }
-      }
-      if (!othIsArr) {
-        othTag = objToString.call(other);
-        if (othTag == argsTag) {
-          othTag = objectTag;
-        } else if (othTag != objectTag) {
-          othIsArr = isTypedArray(other);
-        }
-      }
-      var objIsObj = objTag == objectTag,
-          othIsObj = othTag == objectTag,
-          isSameTag = objTag == othTag;
-
-      if (isSameTag && !(objIsArr || objIsObj)) {
-        return equalByTag(object, other, objTag);
-      }
-      if (!isLoose) {
-        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
-            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
-
-        if (objIsWrapped || othIsWrapped) {
-          return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, isLoose, stackA, stackB);
-        }
-      }
-      if (!isSameTag) {
-        return false;
-      }
-      // Assume cyclic values are equal.
-      // For more information on detecting circular references see https://es5.github.io/#JO.
-      stackA || (stackA = []);
-      stackB || (stackB = []);
-
-      var length = stackA.length;
-      while (length--) {
-        if (stackA[length] == object) {
-          return stackB[length] == other;
-        }
-      }
-      // Add `object` and `other` to the stack of traversed objects.
-      stackA.push(object);
-      stackB.push(other);
-
-      var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isLoose, stackA, stackB);
-
-      stackA.pop();
-      stackB.pop();
-
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.isMatch` without support for callback
-     * shorthands and `this` binding.
-     *
-     * @private
-     * @param {Object} object The object to inspect.
-     * @param {Array} matchData The propery names, values, and compare flags to match.
-     * @param {Function} [customizer] The function to customize comparing objects.
-     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
-     */
-    function baseIsMatch(object, matchData, customizer) {
-      var index = matchData.length,
-          length = index,
-          noCustomizer = !customizer;
-
-      if (object == null) {
-        return !length;
-      }
-      object = toObject(object);
-      while (index--) {
-        var data = matchData[index];
-        if ((noCustomizer && data[2])
-              ? data[1] !== object[data[0]]
-              : !(data[0] in object)
-            ) {
-          return false;
-        }
-      }
-      while (++index < length) {
-        data = matchData[index];
-        var key = data[0],
-            objValue = object[key],
-            srcValue = data[1];
-
-        if (noCustomizer && data[2]) {
-          if (objValue === undefined && !(key in object)) {
-            return false;
-          }
-        } else {
-          var result = customizer ? customizer(objValue, srcValue, key) : undefined;
-          if (!(result === undefined ? baseIsEqual(srcValue, objValue, customizer, true) : result)) {
-            return false;
-          }
-        }
-      }
-      return true;
-    }
-
-    /**
-     * The base implementation of `_.map` without support for callback shorthands
-     * and `this` binding.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array} Returns the new mapped array.
-     */
-    function baseMap(collection, iteratee) {
-      var index = -1,
-          result = isArrayLike(collection) ? Array(collection.length) : [];
-
-      baseEach(collection, function(value, key, collection) {
-        result[++index] = iteratee(value, key, collection);
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.matches` which does not clone `source`.
-     *
-     * @private
-     * @param {Object} source The object of property values to match.
-     * @returns {Function} Returns the new function.
-     */
-    function baseMatches(source) {
-      var matchData = getMatchData(source);
-      if (matchData.length == 1 && matchData[0][2]) {
-        var key = matchData[0][0],
-            value = matchData[0][1];
-
-        return function(object) {
-          if (object == null) {
-            return false;
-          }
-          return object[key] === value && (value !== undefined || (key in toObject(object)));
-        };
-      }
-      return function(object) {
-        return baseIsMatch(object, matchData);
-      };
-    }
-
-    /**
-     * The base implementation of `_.matchesProperty` which does not clone `srcValue`.
-     *
-     * @private
-     * @param {string} path The path of the property to get.
-     * @param {*} srcValue The value to compare.
-     * @returns {Function} Returns the new function.
-     */
-    function baseMatchesProperty(path, srcValue) {
-      var isArr = isArray(path),
-          isCommon = isKey(path) && isStrictComparable(srcValue),
-          pathKey = (path + '');
-
-      path = toPath(path);
-      return function(object) {
-        if (object == null) {
-          return false;
-        }
-        var key = pathKey;
-        object = toObject(object);
-        if ((isArr || !isCommon) && !(key in object)) {
-          object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
-          if (object == null) {
-            return false;
-          }
-          key = last(path);
-          object = toObject(object);
-        }
-        return object[key] === srcValue
-          ? (srcValue !== undefined || (key in object))
-          : baseIsEqual(srcValue, object[key], undefined, true);
-      };
-    }
-
-    /**
-     * The base implementation of `_.merge` without support for argument juggling,
-     * multiple sources, and `this` binding `customizer` functions.
-     *
-     * @private
-     * @param {Object} object The destination object.
-     * @param {Object} source The source object.
-     * @param {Function} [customizer] The function to customize merged values.
-     * @param {Array} [stackA=[]] Tracks traversed source objects.
-     * @param {Array} [stackB=[]] Associates values with source counterparts.
-     * @returns {Object} Returns `object`.
-     */
-    function baseMerge(object, source, customizer, stackA, stackB) {
-      if (!isObject(object)) {
-        return object;
-      }
-      var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),
-          props = isSrcArr ? undefined : keys(source);
-
-      arrayEach(props || source, function(srcValue, key) {
-        if (props) {
-          key = srcValue;
-          srcValue = source[key];
-        }
-        if (isObjectLike(srcValue)) {
-          stackA || (stackA = []);
-          stackB || (stackB = []);
-          baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);
-        }
-        else {
-          var value = object[key],
-              result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
-              isCommon = result === undefined;
-
-          if (isCommon) {
-            result = srcValue;
-          }
-          if ((result !== undefined || (isSrcArr && !(key in object))) &&
-              (isCommon || (result === result ? (result !== value) : (value === value)))) {
-            object[key] = result;
-          }
-        }
-      });
-      return object;
-    }
-
-    /**
-     * A specialized version of `baseMerge` for arrays and objects which performs
-     * deep merges and tracks traversed objects enabling objects with circular
-     * references to be merged.
-     *
-     * @private
-     * @param {Object} object The destination object.
-     * @param {Object} source The source object.
-     * @param {string} key The key of the value to merge.
-     * @param {Function} mergeFunc The function to merge values.
-     * @param {Function} [customizer] The function to customize merged values.
-     * @param {Array} [stackA=[]] Tracks traversed source objects.
-     * @param {Array} [stackB=[]] Associates values with source counterparts.
-     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
-     */
-    function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {
-      var length = stackA.length,
-          srcValue = source[key];
-
-      while (length--) {
-        if (stackA[length] == srcValue) {
-          object[key] = stackB[length];
-          return;
-        }
-      }
-      var value = object[key],
-          result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
-          isCommon = result === undefined;
-
-      if (isCommon) {
-        result = srcValue;
-        if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {
-          result = isArray(value)
-            ? value
-            : (isArrayLike(value) ? arrayCopy(value) : []);
-        }
-        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
-          result = isArguments(value)
-            ? toPlainObject(value)
-            : (isPlainObject(value) ? value : {});
-        }
-        else {
-          isCommon = false;
-        }
-      }
-      // Add the source value to the stack of traversed objects and associate
-      // it with its merged value.
-      stackA.push(srcValue);
-      stackB.push(result);
-
-      if (isCommon) {
-        // Recursively merge objects and arrays (susceptible to call stack limits).
-        object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);
-      } else if (result === result ? (result !== value) : (value === value)) {
-        object[key] = result;
-      }
-    }
-
-    /**
-     * The base implementation of `_.property` without support for deep paths.
-     *
-     * @private
-     * @param {string} key The key of the property to get.
-     * @returns {Function} Returns the new function.
-     */
-    function baseProperty(key) {
-      return function(object) {
-        return object == null ? undefined : object[key];
-      };
-    }
-
-    /**
-     * A specialized version of `baseProperty` which supports deep paths.
-     *
-     * @private
-     * @param {Array|string} path The path of the property to get.
-     * @returns {Function} Returns the new function.
-     */
-    function basePropertyDeep(path) {
-      var pathKey = (path + '');
-      path = toPath(path);
-      return function(object) {
-        return baseGet(object, path, pathKey);
-      };
-    }
-
-    /**
-     * The base implementation of `_.pullAt` without support for individual
-     * index arguments and capturing the removed elements.
-     *
-     * @private
-     * @param {Array} array The array to modify.
-     * @param {number[]} indexes The indexes of elements to remove.
-     * @returns {Array} Returns `array`.
-     */
-    function basePullAt(array, indexes) {
-      var length = array ? indexes.length : 0;
-      while (length--) {
-        var index = indexes[length];
-        if (index != previous && isIndex(index)) {
-          var previous = index;
-          splice.call(array, index, 1);
-        }
-      }
-      return array;
-    }
-
-    /**
-     * The base implementation of `_.random` without support for argument juggling
-     * and returning floating-point numbers.
-     *
-     * @private
-     * @param {number} min The minimum possible value.
-     * @param {number} max The maximum possible value.
-     * @returns {number} Returns the random number.
-     */
-    function baseRandom(min, max) {
-      return min + nativeFloor(nativeRandom() * (max - min + 1));
-    }
-
-    /**
-     * The base implementation of `_.reduce` and `_.reduceRight` without support
-     * for callback shorthands and `this` binding, which iterates over `collection`
-     * using the provided `eachFunc`.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {*} accumulator The initial value.
-     * @param {boolean} initFromCollection Specify using the first or last element
-     *  of `collection` as the initial value.
-     * @param {Function} eachFunc The function to iterate over `collection`.
-     * @returns {*} Returns the accumulated value.
-     */
-    function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) {
-      eachFunc(collection, function(value, index, collection) {
-        accumulator = initFromCollection
-          ? (initFromCollection = false, value)
-          : iteratee(accumulator, value, index, collection);
-      });
-      return accumulator;
-    }
-
-    /**
-     * The base implementation of `setData` without support for hot loop detection.
-     *
-     * @private
-     * @param {Function} func The function to associate metadata with.
-     * @param {*} data The metadata.
-     * @returns {Function} Returns `func`.
-     */
-    var baseSetData = !metaMap ? identity : function(func, data) {
-      metaMap.set(func, data);
-      return func;
-    };
-
-    /**
-     * The base implementation of `_.slice` without an iteratee call guard.
-     *
-     * @private
-     * @param {Array} array The array to slice.
-     * @param {number} [start=0] The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns the slice of `array`.
-     */
-    function baseSlice(array, start, end) {
-      var index = -1,
-          length = array.length;
-
-      start = start == null ? 0 : (+start || 0);
-      if (start < 0) {
-        start = -start > length ? 0 : (length + start);
-      }
-      end = (end === undefined || end > length) ? length : (+end || 0);
-      if (end < 0) {
-        end += length;
-      }
-      length = start > end ? 0 : ((end - start) >>> 0);
-      start >>>= 0;
-
-      var result = Array(length);
-      while (++index < length) {
-        result[index] = array[index + start];
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.some` without support for callback shorthands
-     * and `this` binding.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {boolean} Returns `true` if any element passes the predicate check,
-     *  else `false`.
-     */
-    function baseSome(collection, predicate) {
-      var result;
-
-      baseEach(collection, function(value, index, collection) {
-        result = predicate(value, index, collection);
-        return !result;
-      });
-      return !!result;
-    }
-
-    /**
-     * The base implementation of `_.sortBy` which uses `comparer` to define
-     * the sort order of `array` and replaces criteria objects with their
-     * corresponding values.
-     *
-     * @private
-     * @param {Array} array The array to sort.
-     * @param {Function} comparer The function to define sort order.
-     * @returns {Array} Returns `array`.
-     */
-    function baseSortBy(array, comparer) {
-      var length = array.length;
-
-      array.sort(comparer);
-      while (length--) {
-        array[length] = array[length].value;
-      }
-      return array;
-    }
-
-    /**
-     * The base implementation of `_.sortByOrder` without param guards.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
-     * @param {boolean[]} orders The sort orders of `iteratees`.
-     * @returns {Array} Returns the new sorted array.
-     */
-    function baseSortByOrder(collection, iteratees, orders) {
-      var callback = getCallback(),
-          index = -1;
-
-      iteratees = arrayMap(iteratees, function(iteratee) { return callback(iteratee); });
-
-      var result = baseMap(collection, function(value) {
-        var criteria = arrayMap(iteratees, function(iteratee) { return iteratee(value); });
-        return { 'criteria': criteria, 'index': ++index, 'value': value };
-      });
-
-      return baseSortBy(result, function(object, other) {
-        return compareMultiple(object, other, orders);
-      });
-    }
-
-    /**
-     * The base implementation of `_.sum` without support for callback shorthands
-     * and `this` binding.
-     *
-     * @private
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {number} Returns the sum.
-     */
-    function baseSum(collection, iteratee) {
-      var result = 0;
-      baseEach(collection, function(value, index, collection) {
-        result += +iteratee(value, index, collection) || 0;
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.uniq` without support for callback shorthands
-     * and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to inspect.
-     * @param {Function} [iteratee] The function invoked per iteration.
-     * @returns {Array} Returns the new duplicate-value-free array.
-     */
-    function baseUniq(array, iteratee) {
-      var index = -1,
-          indexOf = getIndexOf(),
-          length = array.length,
-          isCommon = indexOf == baseIndexOf,
-          isLarge = isCommon && length >= LARGE_ARRAY_SIZE,
-          seen = isLarge ? createCache() : null,
-          result = [];
-
-      if (seen) {
-        indexOf = cacheIndexOf;
-        isCommon = false;
-      } else {
-        isLarge = false;
-        seen = iteratee ? [] : result;
-      }
-      outer:
-      while (++index < length) {
-        var value = array[index],
-            computed = iteratee ? iteratee(value, index, array) : value;
-
-        if (isCommon && value === value) {
-          var seenIndex = seen.length;
-          while (seenIndex--) {
-            if (seen[seenIndex] === computed) {
-              continue outer;
-            }
-          }
-          if (iteratee) {
-            seen.push(computed);
-          }
-          result.push(value);
-        }
-        else if (indexOf(seen, computed, 0) < 0) {
-          if (iteratee || isLarge) {
-            seen.push(computed);
-          }
-          result.push(value);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.values` and `_.valuesIn` which creates an
-     * array of `object` property values corresponding to the property names
-     * of `props`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {Array} props The property names to get values for.
-     * @returns {Object} Returns the array of property values.
-     */
-    function baseValues(object, props) {
-      var index = -1,
-          length = props.length,
-          result = Array(length);
-
-      while (++index < length) {
-        result[index] = object[props[index]];
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.dropRightWhile`, `_.dropWhile`, `_.takeRightWhile`,
-     * and `_.takeWhile` without support for callback shorthands and `this` binding.
-     *
-     * @private
-     * @param {Array} array The array to query.
-     * @param {Function} predicate The function invoked per iteration.
-     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Array} Returns the slice of `array`.
-     */
-    function baseWhile(array, predicate, isDrop, fromRight) {
-      var length = array.length,
-          index = fromRight ? length : -1;
-
-      while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {}
-      return isDrop
-        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
-        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
-    }
-
-    /**
-     * The base implementation of `wrapperValue` which returns the result of
-     * performing a sequence of actions on the unwrapped `value`, where each
-     * successive action is supplied the return value of the previous.
-     *
-     * @private
-     * @param {*} value The unwrapped value.
-     * @param {Array} actions Actions to peform to resolve the unwrapped value.
-     * @returns {*} Returns the resolved value.
-     */
-    function baseWrapperValue(value, actions) {
-      var result = value;
-      if (result instanceof LazyWrapper) {
-        result = result.value();
-      }
-      var index = -1,
-          length = actions.length;
-
-      while (++index < length) {
-        var action = actions[index];
-        result = action.func.apply(action.thisArg, arrayPush([result], action.args));
-      }
-      return result;
-    }
-
-    /**
-     * Performs a binary search of `array` to determine the index at which `value`
-     * should be inserted into `array` in order to maintain its sort order.
-     *
-     * @private
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @param {boolean} [retHighest] Specify returning the highest qualified index.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     */
-    function binaryIndex(array, value, retHighest) {
-      var low = 0,
-          high = array ? array.length : low;
-
-      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
-        while (low < high) {
-          var mid = (low + high) >>> 1,
-              computed = array[mid];
-
-          if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) {
-            low = mid + 1;
-          } else {
-            high = mid;
-          }
-        }
-        return high;
-      }
-      return binaryIndexBy(array, value, identity, retHighest);
-    }
-
-    /**
-     * This function is like `binaryIndex` except that it invokes `iteratee` for
-     * `value` and each element of `array` to compute their sort ranking. The
-     * iteratee is invoked with one argument; (value).
-     *
-     * @private
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {boolean} [retHighest] Specify returning the highest qualified index.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     */
-    function binaryIndexBy(array, value, iteratee, retHighest) {
-      value = iteratee(value);
-
-      var low = 0,
-          high = array ? array.length : 0,
-          valIsNaN = value !== value,
-          valIsNull = value === null,
-          valIsUndef = value === undefined;
-
-      while (low < high) {
-        var mid = nativeFloor((low + high) / 2),
-            computed = iteratee(array[mid]),
-            isDef = computed !== undefined,
-            isReflexive = computed === computed;
-
-        if (valIsNaN) {
-          var setLow = isReflexive || retHighest;
-        } else if (valIsNull) {
-          setLow = isReflexive && isDef && (retHighest || computed != null);
-        } else if (valIsUndef) {
-          setLow = isReflexive && (retHighest || isDef);
-        } else if (computed == null) {
-          setLow = false;
-        } else {
-          setLow = retHighest ? (computed <= value) : (computed < value);
-        }
-        if (setLow) {
-          low = mid + 1;
-        } else {
-          high = mid;
-        }
-      }
-      return nativeMin(high, MAX_ARRAY_INDEX);
-    }
-
-    /**
-     * A specialized version of `baseCallback` which only supports `this` binding
-     * and specifying the number of arguments to provide to `func`.
-     *
-     * @private
-     * @param {Function} func The function to bind.
-     * @param {*} thisArg The `this` binding of `func`.
-     * @param {number} [argCount] The number of arguments to provide to `func`.
-     * @returns {Function} Returns the callback.
-     */
-    function bindCallback(func, thisArg, argCount) {
-      if (typeof func != 'function') {
-        return identity;
-      }
-      if (thisArg === undefined) {
-        return func;
-      }
-      switch (argCount) {
-        case 1: return function(value) {
-          return func.call(thisArg, value);
-        };
-        case 3: return function(value, index, collection) {
-          return func.call(thisArg, value, index, collection);
-        };
-        case 4: return function(accumulator, value, index, collection) {
-          return func.call(thisArg, accumulator, value, index, collection);
-        };
-        case 5: return function(value, other, key, object, source) {
-          return func.call(thisArg, value, other, key, object, source);
-        };
-      }
-      return function() {
-        return func.apply(thisArg, arguments);
-      };
-    }
-
-    /**
-     * Creates a clone of the given array buffer.
-     *
-     * @private
-     * @param {ArrayBuffer} buffer The array buffer to clone.
-     * @returns {ArrayBuffer} Returns the cloned array buffer.
-     */
-    function bufferClone(buffer) {
-      var result = new ArrayBuffer(buffer.byteLength),
-          view = new Uint8Array(result);
-
-      view.set(new Uint8Array(buffer));
-      return result;
-    }
-
-    /**
-     * Creates an array that is the composition of partially applied arguments,
-     * placeholders, and provided arguments into a single array of arguments.
-     *
-     * @private
-     * @param {Array|Object} args The provided arguments.
-     * @param {Array} partials The arguments to prepend to those provided.
-     * @param {Array} holders The `partials` placeholder indexes.
-     * @returns {Array} Returns the new array of composed arguments.
-     */
-    function composeArgs(args, partials, holders) {
-      var holdersLength = holders.length,
-          argsIndex = -1,
-          argsLength = nativeMax(args.length - holdersLength, 0),
-          leftIndex = -1,
-          leftLength = partials.length,
-          result = Array(leftLength + argsLength);
-
-      while (++leftIndex < leftLength) {
-        result[leftIndex] = partials[leftIndex];
-      }
-      while (++argsIndex < holdersLength) {
-        result[holders[argsIndex]] = args[argsIndex];
-      }
-      while (argsLength--) {
-        result[leftIndex++] = args[argsIndex++];
-      }
-      return result;
-    }
-
-    /**
-     * This function is like `composeArgs` except that the arguments composition
-     * is tailored for `_.partialRight`.
-     *
-     * @private
-     * @param {Array|Object} args The provided arguments.
-     * @param {Array} partials The arguments to append to those provided.
-     * @param {Array} holders The `partials` placeholder indexes.
-     * @returns {Array} Returns the new array of composed arguments.
-     */
-    function composeArgsRight(args, partials, holders) {
-      var holdersIndex = -1,
-          holdersLength = holders.length,
-          argsIndex = -1,
-          argsLength = nativeMax(args.length - holdersLength, 0),
-          rightIndex = -1,
-          rightLength = partials.length,
-          result = Array(argsLength + rightLength);
-
-      while (++argsIndex < argsLength) {
-        result[argsIndex] = args[argsIndex];
-      }
-      var offset = argsIndex;
-      while (++rightIndex < rightLength) {
-        result[offset + rightIndex] = partials[rightIndex];
-      }
-      while (++holdersIndex < holdersLength) {
-        result[offset + holders[holdersIndex]] = args[argsIndex++];
-      }
-      return result;
-    }
-
-    /**
-     * Creates a `_.countBy`, `_.groupBy`, `_.indexBy`, or `_.partition` function.
-     *
-     * @private
-     * @param {Function} setter The function to set keys and values of the accumulator object.
-     * @param {Function} [initializer] The function to initialize the accumulator object.
-     * @returns {Function} Returns the new aggregator function.
-     */
-    function createAggregator(setter, initializer) {
-      return function(collection, iteratee, thisArg) {
-        var result = initializer ? initializer() : {};
-        iteratee = getCallback(iteratee, thisArg, 3);
-
-        if (isArray(collection)) {
-          var index = -1,
-              length = collection.length;
-
-          while (++index < length) {
-            var value = collection[index];
-            setter(result, value, iteratee(value, index, collection), collection);
-          }
-        } else {
-          baseEach(collection, function(value, key, collection) {
-            setter(result, value, iteratee(value, key, collection), collection);
-          });
-        }
-        return result;
-      };
-    }
-
-    /**
-     * Creates a `_.assign`, `_.defaults`, or `_.merge` function.
-     *
-     * @private
-     * @param {Function} assigner The function to assign values.
-     * @returns {Function} Returns the new assigner function.
-     */
-    function createAssigner(assigner) {
-      return restParam(function(object, sources) {
-        var index = -1,
-            length = object == null ? 0 : sources.length,
-            customizer = length > 2 ? sources[length - 2] : undefined,
-            guard = length > 2 ? sources[2] : undefined,
-            thisArg = length > 1 ? sources[length - 1] : undefined;
-
-        if (typeof customizer == 'function') {
-          customizer = bindCallback(customizer, thisArg, 5);
-          length -= 2;
-        } else {
-          customizer = typeof thisArg == 'function' ? thisArg : undefined;
-          length -= (customizer ? 1 : 0);
-        }
-        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
-          customizer = length < 3 ? undefined : customizer;
-          length = 1;
-        }
-        while (++index < length) {
-          var source = sources[index];
-          if (source) {
-            assigner(object, source, customizer);
-          }
-        }
-        return object;
-      });
-    }
-
-    /**
-     * Creates a `baseEach` or `baseEachRight` function.
-     *
-     * @private
-     * @param {Function} eachFunc The function to iterate over a collection.
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new base function.
-     */
-    function createBaseEach(eachFunc, fromRight) {
-      return function(collection, iteratee) {
-        var length = collection ? getLength(collection) : 0;
-        if (!isLength(length)) {
-          return eachFunc(collection, iteratee);
-        }
-        var index = fromRight ? length : -1,
-            iterable = toObject(collection);
-
-        while ((fromRight ? index-- : ++index < length)) {
-          if (iteratee(iterable[index], index, iterable) === false) {
-            break;
-          }
-        }
-        return collection;
-      };
-    }
-
-    /**
-     * Creates a base function for `_.forIn` or `_.forInRight`.
-     *
-     * @private
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new base function.
-     */
-    function createBaseFor(fromRight) {
-      return function(object, iteratee, keysFunc) {
-        var iterable = toObject(object),
-            props = keysFunc(object),
-            length = props.length,
-            index = fromRight ? length : -1;
-
-        while ((fromRight ? index-- : ++index < length)) {
-          var key = props[index];
-          if (iteratee(iterable[key], key, iterable) === false) {
-            break;
-          }
-        }
-        return object;
-      };
-    }
-
-    /**
-     * Creates a function that wraps `func` and invokes it with the `this`
-     * binding of `thisArg`.
-     *
-     * @private
-     * @param {Function} func The function to bind.
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @returns {Function} Returns the new bound function.
-     */
-    function createBindWrapper(func, thisArg) {
-      var Ctor = createCtorWrapper(func);
-
-      function wrapper() {
-        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
-        return fn.apply(thisArg, arguments);
-      }
-      return wrapper;
-    }
-
-    /**
-     * Creates a `Set` cache object to optimize linear searches of large arrays.
-     *
-     * @private
-     * @param {Array} [values] The values to cache.
-     * @returns {null|Object} Returns the new cache object if `Set` is supported, else `null`.
-     */
-    function createCache(values) {
-      return (nativeCreate && Set) ? new SetCache(values) : null;
-    }
-
-    /**
-     * Creates a function that produces compound words out of the words in a
-     * given string.
-     *
-     * @private
-     * @param {Function} callback The function to combine each word.
-     * @returns {Function} Returns the new compounder function.
-     */
-    function createCompounder(callback) {
-      return function(string) {
-        var index = -1,
-            array = words(deburr(string)),
-            length = array.length,
-            result = '';
-
-        while (++index < length) {
-          result = callback(result, array[index], index);
-        }
-        return result;
-      };
-    }
-
-    /**
-     * Creates a function that produces an instance of `Ctor` regardless of
-     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
-     *
-     * @private
-     * @param {Function} Ctor The constructor to wrap.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createCtorWrapper(Ctor) {
-      return function() {
-        // Use a `switch` statement to work with class constructors.
-        // See http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
-        // for more details.
-        var args = arguments;
-        switch (args.length) {
-          case 0: return new Ctor;
-          case 1: return new Ctor(args[0]);
-          case 2: return new Ctor(args[0], args[1]);
-          case 3: return new Ctor(args[0], args[1], args[2]);
-          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
-          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
-          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
-          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
-        }
-        var thisBinding = baseCreate(Ctor.prototype),
-            result = Ctor.apply(thisBinding, args);
-
-        // Mimic the constructor's `return` behavior.
-        // See https://es5.github.io/#x13.2.2 for more details.
-        return isObject(result) ? result : thisBinding;
-      };
-    }
-
-    /**
-     * Creates a `_.curry` or `_.curryRight` function.
-     *
-     * @private
-     * @param {boolean} flag The curry bit flag.
-     * @returns {Function} Returns the new curry function.
-     */
-    function createCurry(flag) {
-      function curryFunc(func, arity, guard) {
-        if (guard && isIterateeCall(func, arity, guard)) {
-          arity = undefined;
-        }
-        var result = createWrapper(func, flag, undefined, undefined, undefined, undefined, undefined, arity);
-        result.placeholder = curryFunc.placeholder;
-        return result;
-      }
-      return curryFunc;
-    }
-
-    /**
-     * Creates a `_.defaults` or `_.defaultsDeep` function.
-     *
-     * @private
-     * @param {Function} assigner The function to assign values.
-     * @param {Function} customizer The function to customize assigned values.
-     * @returns {Function} Returns the new defaults function.
-     */
-    function createDefaults(assigner, customizer) {
-      return restParam(function(args) {
-        var object = args[0];
-        if (object == null) {
-          return object;
-        }
-        args.push(customizer);
-        return assigner.apply(undefined, args);
-      });
-    }
-
-    /**
-     * Creates a `_.max` or `_.min` function.
-     *
-     * @private
-     * @param {Function} comparator The function used to compare values.
-     * @param {*} exValue The initial extremum value.
-     * @returns {Function} Returns the new extremum function.
-     */
-    function createExtremum(comparator, exValue) {
-      return function(collection, iteratee, thisArg) {
-        if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
-          iteratee = undefined;
-        }
-        iteratee = getCallback(iteratee, thisArg, 3);
-        if (iteratee.length == 1) {
-          collection = isArray(collection) ? collection : toIterable(collection);
-          var result = arrayExtremum(collection, iteratee, comparator, exValue);
-          if (!(collection.length && result === exValue)) {
-            return result;
-          }
-        }
-        return baseExtremum(collection, iteratee, comparator, exValue);
-      };
-    }
-
-    /**
-     * Creates a `_.find` or `_.findLast` function.
-     *
-     * @private
-     * @param {Function} eachFunc The function to iterate over a collection.
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new find function.
-     */
-    function createFind(eachFunc, fromRight) {
-      return function(collection, predicate, thisArg) {
-        predicate = getCallback(predicate, thisArg, 3);
-        if (isArray(collection)) {
-          var index = baseFindIndex(collection, predicate, fromRight);
-          return index > -1 ? collection[index] : undefined;
-        }
-        return baseFind(collection, predicate, eachFunc);
-      };
-    }
-
-    /**
-     * Creates a `_.findIndex` or `_.findLastIndex` function.
-     *
-     * @private
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new find function.
-     */
-    function createFindIndex(fromRight) {
-      return function(array, predicate, thisArg) {
-        if (!(array && array.length)) {
-          return -1;
-        }
-        predicate = getCallback(predicate, thisArg, 3);
-        return baseFindIndex(array, predicate, fromRight);
-      };
-    }
-
-    /**
-     * Creates a `_.findKey` or `_.findLastKey` function.
-     *
-     * @private
-     * @param {Function} objectFunc The function to iterate over an object.
-     * @returns {Function} Returns the new find function.
-     */
-    function createFindKey(objectFunc) {
-      return function(object, predicate, thisArg) {
-        predicate = getCallback(predicate, thisArg, 3);
-        return baseFind(object, predicate, objectFunc, true);
-      };
-    }
-
-    /**
-     * Creates a `_.flow` or `_.flowRight` function.
-     *
-     * @private
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new flow function.
-     */
-    function createFlow(fromRight) {
-      return function() {
-        var wrapper,
-            length = arguments.length,
-            index = fromRight ? length : -1,
-            leftIndex = 0,
-            funcs = Array(length);
-
-        while ((fromRight ? index-- : ++index < length)) {
-          var func = funcs[leftIndex++] = arguments[index];
-          if (typeof func != 'function') {
-            throw new TypeError(FUNC_ERROR_TEXT);
-          }
-          if (!wrapper && LodashWrapper.prototype.thru && getFuncName(func) == 'wrapper') {
-            wrapper = new LodashWrapper([], true);
-          }
-        }
-        index = wrapper ? -1 : length;
-        while (++index < length) {
-          func = funcs[index];
-
-          var funcName = getFuncName(func),
-              data = funcName == 'wrapper' ? getData(func) : undefined;
-
-          if (data && isLaziable(data[0]) && data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) && !data[4].length && data[9] == 1) {
-            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
-          } else {
-            wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func);
-          }
-        }
-        return function() {
-          var args = arguments,
-              value = args[0];
-
-          if (wrapper && args.length == 1 && isArray(value) && value.length >= LARGE_ARRAY_SIZE) {
-            return wrapper.plant(value).value();
-          }
-          var index = 0,
-              result = length ? funcs[index].apply(this, args) : value;
-
-          while (++index < length) {
-            result = funcs[index].call(this, result);
-          }
-          return result;
-        };
-      };
-    }
-
-    /**
-     * Creates a function for `_.forEach` or `_.forEachRight`.
-     *
-     * @private
-     * @param {Function} arrayFunc The function to iterate over an array.
-     * @param {Function} eachFunc The function to iterate over a collection.
-     * @returns {Function} Returns the new each function.
-     */
-    function createForEach(arrayFunc, eachFunc) {
-      return function(collection, iteratee, thisArg) {
-        return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
-          ? arrayFunc(collection, iteratee)
-          : eachFunc(collection, bindCallback(iteratee, thisArg, 3));
-      };
-    }
-
-    /**
-     * Creates a function for `_.forIn` or `_.forInRight`.
-     *
-     * @private
-     * @param {Function} objectFunc The function to iterate over an object.
-     * @returns {Function} Returns the new each function.
-     */
-    function createForIn(objectFunc) {
-      return function(object, iteratee, thisArg) {
-        if (typeof iteratee != 'function' || thisArg !== undefined) {
-          iteratee = bindCallback(iteratee, thisArg, 3);
-        }
-        return objectFunc(object, iteratee, keysIn);
-      };
-    }
-
-    /**
-     * Creates a function for `_.forOwn` or `_.forOwnRight`.
-     *
-     * @private
-     * @param {Function} objectFunc The function to iterate over an object.
-     * @returns {Function} Returns the new each function.
-     */
-    function createForOwn(objectFunc) {
-      return function(object, iteratee, thisArg) {
-        if (typeof iteratee != 'function' || thisArg !== undefined) {
-          iteratee = bindCallback(iteratee, thisArg, 3);
-        }
-        return objectFunc(object, iteratee);
-      };
-    }
-
-    /**
-     * Creates a function for `_.mapKeys` or `_.mapValues`.
-     *
-     * @private
-     * @param {boolean} [isMapKeys] Specify mapping keys instead of values.
-     * @returns {Function} Returns the new map function.
-     */
-    function createObjectMapper(isMapKeys) {
-      return function(object, iteratee, thisArg) {
-        var result = {};
-        iteratee = getCallback(iteratee, thisArg, 3);
-
-        baseForOwn(object, function(value, key, object) {
-          var mapped = iteratee(value, key, object);
-          key = isMapKeys ? mapped : key;
-          value = isMapKeys ? value : mapped;
-          result[key] = value;
-        });
-        return result;
-      };
-    }
-
-    /**
-     * Creates a function for `_.padLeft` or `_.padRight`.
-     *
-     * @private
-     * @param {boolean} [fromRight] Specify padding from the right.
-     * @returns {Function} Returns the new pad function.
-     */
-    function createPadDir(fromRight) {
-      return function(string, length, chars) {
-        string = baseToString(string);
-        return (fromRight ? string : '') + createPadding(string, length, chars) + (fromRight ? '' : string);
-      };
-    }
-
-    /**
-     * Creates a `_.partial` or `_.partialRight` function.
-     *
-     * @private
-     * @param {boolean} flag The partial bit flag.
-     * @returns {Function} Returns the new partial function.
-     */
-    function createPartial(flag) {
-      var partialFunc = restParam(function(func, partials) {
-        var holders = replaceHolders(partials, partialFunc.placeholder);
-        return createWrapper(func, flag, undefined, partials, holders);
-      });
-      return partialFunc;
-    }
-
-    /**
-     * Creates a function for `_.reduce` or `_.reduceRight`.
-     *
-     * @private
-     * @param {Function} arrayFunc The function to iterate over an array.
-     * @param {Function} eachFunc The function to iterate over a collection.
-     * @returns {Function} Returns the new each function.
-     */
-    function createReduce(arrayFunc, eachFunc) {
-      return function(collection, iteratee, accumulator, thisArg) {
-        var initFromArray = arguments.length < 3;
-        return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
-          ? arrayFunc(collection, iteratee, accumulator, initFromArray)
-          : baseReduce(collection, getCallback(iteratee, thisArg, 4), accumulator, initFromArray, eachFunc);
-      };
-    }
-
-    /**
-     * Creates a function that wraps `func` and invokes it with optional `this`
-     * binding of, partial application, and currying.
-     *
-     * @private
-     * @param {Function|string} func The function or method name to reference.
-     * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @param {Array} [partials] The arguments to prepend to those provided to the new function.
-     * @param {Array} [holders] The `partials` placeholder indexes.
-     * @param {Array} [partialsRight] The arguments to append to those provided to the new function.
-     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
-     * @param {Array} [argPos] The argument positions of the new function.
-     * @param {number} [ary] The arity cap of `func`.
-     * @param {number} [arity] The arity of `func`.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
-      var isAry = bitmask & ARY_FLAG,
-          isBind = bitmask & BIND_FLAG,
-          isBindKey = bitmask & BIND_KEY_FLAG,
-          isCurry = bitmask & CURRY_FLAG,
-          isCurryBound = bitmask & CURRY_BOUND_FLAG,
-          isCurryRight = bitmask & CURRY_RIGHT_FLAG,
-          Ctor = isBindKey ? undefined : createCtorWrapper(func);
-
-      function wrapper() {
-        // Avoid `arguments` object use disqualifying optimizations by
-        // converting it to an array before providing it to other functions.
-        var length = arguments.length,
-            index = length,
-            args = Array(length);
-
-        while (index--) {
-          args[index] = arguments[index];
-        }
-        if (partials) {
-          args = composeArgs(args, partials, holders);
-        }
-        if (partialsRight) {
-          args = composeArgsRight(args, partialsRight, holdersRight);
-        }
-        if (isCurry || isCurryRight) {
-          var placeholder = wrapper.placeholder,
-              argsHolders = replaceHolders(args, placeholder);
-
-          length -= argsHolders.length;
-          if (length < arity) {
-            var newArgPos = argPos ? arrayCopy(argPos) : undefined,
-                newArity = nativeMax(arity - length, 0),
-                newsHolders = isCurry ? argsHolders : undefined,
-                newHoldersRight = isCurry ? undefined : argsHolders,
-                newPartials = isCurry ? args : undefined,
-                newPartialsRight = isCurry ? undefined : args;
-
-            bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
-            bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);
-
-            if (!isCurryBound) {
-              bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
-            }
-            var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity],
-                result = createHybridWrapper.apply(undefined, newData);
-
-            if (isLaziable(func)) {
-              setData(result, newData);
-            }
-            result.placeholder = placeholder;
-            return result;
-          }
-        }
-        var thisBinding = isBind ? thisArg : this,
-            fn = isBindKey ? thisBinding[func] : func;
-
-        if (argPos) {
-          args = reorder(args, argPos);
-        }
-        if (isAry && ary < args.length) {
-          args.length = ary;
-        }
-        if (this && this !== root && this instanceof wrapper) {
-          fn = Ctor || createCtorWrapper(func);
-        }
-        return fn.apply(thisBinding, args);
-      }
-      return wrapper;
-    }
-
-    /**
-     * Creates the padding required for `string` based on the given `length`.
-     * The `chars` string is truncated if the number of characters exceeds `length`.
-     *
-     * @private
-     * @param {string} string The string to create padding for.
-     * @param {number} [length=0] The padding length.
-     * @param {string} [chars=' '] The string used as padding.
-     * @returns {string} Returns the pad for `string`.
-     */
-    function createPadding(string, length, chars) {
-      var strLength = string.length;
-      length = +length;
-
-      if (strLength >= length || !nativeIsFinite(length)) {
-        return '';
-      }
-      var padLength = length - strLength;
-      chars = chars == null ? ' ' : (chars + '');
-      return repeat(chars, nativeCeil(padLength / chars.length)).slice(0, padLength);
-    }
-
-    /**
-     * Creates a function that wraps `func` and invokes it with the optional `this`
-     * binding of `thisArg` and the `partials` prepended to those provided to
-     * the wrapper.
-     *
-     * @private
-     * @param {Function} func The function to partially apply arguments to.
-     * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
-     * @param {*} thisArg The `this` binding of `func`.
-     * @param {Array} partials The arguments to prepend to those provided to the new function.
-     * @returns {Function} Returns the new bound function.
-     */
-    function createPartialWrapper(func, bitmask, thisArg, partials) {
-      var isBind = bitmask & BIND_FLAG,
-          Ctor = createCtorWrapper(func);
-
-      function wrapper() {
-        // Avoid `arguments` object use disqualifying optimizations by
-        // converting it to an array before providing it `func`.
-        var argsIndex = -1,
-            argsLength = arguments.length,
-            leftIndex = -1,
-            leftLength = partials.length,
-            args = Array(leftLength + argsLength);
-
-        while (++leftIndex < leftLength) {
-          args[leftIndex] = partials[leftIndex];
-        }
-        while (argsLength--) {
-          args[leftIndex++] = arguments[++argsIndex];
-        }
-        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
-        return fn.apply(isBind ? thisArg : this, args);
-      }
-      return wrapper;
-    }
-
-    /**
-     * Creates a `_.ceil`, `_.floor`, or `_.round` function.
-     *
-     * @private
-     * @param {string} methodName The name of the `Math` method to use when rounding.
-     * @returns {Function} Returns the new round function.
-     */
-    function createRound(methodName) {
-      var func = Math[methodName];
-      return function(number, precision) {
-        precision = precision === undefined ? 0 : (+precision || 0);
-        if (precision) {
-          precision = pow(10, precision);
-          return func(number * precision) / precision;
-        }
-        return func(number);
-      };
-    }
-
-    /**
-     * Creates a `_.sortedIndex` or `_.sortedLastIndex` function.
-     *
-     * @private
-     * @param {boolean} [retHighest] Specify returning the highest qualified index.
-     * @returns {Function} Returns the new index function.
-     */
-    function createSortedIndex(retHighest) {
-      return function(array, value, iteratee, thisArg) {
-        var callback = getCallback(iteratee);
-        return (iteratee == null && callback === baseCallback)
-          ? binaryIndex(array, value, retHighest)
-          : binaryIndexBy(array, value, callback(iteratee, thisArg, 1), retHighest);
-      };
-    }
-
-    /**
-     * Creates a function that either curries or invokes `func` with optional
-     * `this` binding and partially applied arguments.
-     *
-     * @private
-     * @param {Function|string} func The function or method name to reference.
-     * @param {number} bitmask The bitmask of flags.
-     *  The bitmask may be composed of the following flags:
-     *     1 - `_.bind`
-     *     2 - `_.bindKey`
-     *     4 - `_.curry` or `_.curryRight` of a bound function
-     *     8 - `_.curry`
-     *    16 - `_.curryRight`
-     *    32 - `_.partial`
-     *    64 - `_.partialRight`
-     *   128 - `_.rearg`
-     *   256 - `_.ary`
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @param {Array} [partials] The arguments to be partially applied.
-     * @param {Array} [holders] The `partials` placeholder indexes.
-     * @param {Array} [argPos] The argument positions of the new function.
-     * @param {number} [ary] The arity cap of `func`.
-     * @param {number} [arity] The arity of `func`.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
-      var isBindKey = bitmask & BIND_KEY_FLAG;
-      if (!isBindKey && typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      var length = partials ? partials.length : 0;
-      if (!length) {
-        bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG);
-        partials = holders = undefined;
-      }
-      length -= (holders ? holders.length : 0);
-      if (bitmask & PARTIAL_RIGHT_FLAG) {
-        var partialsRight = partials,
-            holdersRight = holders;
-
-        partials = holders = undefined;
-      }
-      var data = isBindKey ? undefined : getData(func),
-          newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity];
-
-      if (data) {
-        mergeData(newData, data);
-        bitmask = newData[1];
-        arity = newData[9];
-      }
-      newData[9] = arity == null
-        ? (isBindKey ? 0 : func.length)
-        : (nativeMax(arity - length, 0) || 0);
-
-      if (bitmask == BIND_FLAG) {
-        var result = createBindWrapper(newData[0], newData[2]);
-      } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) {
-        result = createPartialWrapper.apply(undefined, newData);
-      } else {
-        result = createHybridWrapper.apply(undefined, newData);
-      }
-      var setter = data ? baseSetData : setData;
-      return setter(result, newData);
-    }
-
-    /**
-     * A specialized version of `baseIsEqualDeep` for arrays with support for
-     * partial deep comparisons.
-     *
-     * @private
-     * @param {Array} array The array to compare.
-     * @param {Array} other The other array to compare.
-     * @param {Function} equalFunc The function to determine equivalents of values.
-     * @param {Function} [customizer] The function to customize comparing arrays.
-     * @param {boolean} [isLoose] Specify performing partial comparisons.
-     * @param {Array} [stackA] Tracks traversed `value` objects.
-     * @param {Array} [stackB] Tracks traversed `other` objects.
-     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
-     */
-    function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) {
-      var index = -1,
-          arrLength = array.length,
-          othLength = other.length;
-
-      if (arrLength != othLength && !(isLoose && othLength > arrLength)) {
-        return false;
-      }
-      // Ignore non-index properties.
-      while (++index < arrLength) {
-        var arrValue = array[index],
-            othValue = other[index],
-            result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined;
-
-        if (result !== undefined) {
-          if (result) {
-            continue;
-          }
-          return false;
-        }
-        // Recursively compare arrays (susceptible to call stack limits).
-        if (isLoose) {
-          if (!arraySome(other, function(othValue) {
-                return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB);
-              })) {
-            return false;
-          }
-        } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) {
-          return false;
-        }
-      }
-      return true;
-    }
-
-    /**
-     * A specialized version of `baseIsEqualDeep` for comparing objects of
-     * the same `toStringTag`.
-     *
-     * **Note:** This function only supports comparing values with tags of
-     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
-     *
-     * @private
-     * @param {Object} object The object to compare.
-     * @param {Object} other The other object to compare.
-     * @param {string} tag The `toStringTag` of the objects to compare.
-     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
-     */
-    function equalByTag(object, other, tag) {
-      switch (tag) {
-        case boolTag:
-        case dateTag:
-          // Coerce dates and booleans to numbers, dates to milliseconds and booleans
-          // to `1` or `0` treating invalid dates coerced to `NaN` as not equal.
-          return +object == +other;
-
-        case errorTag:
-          return object.name == other.name && object.message == other.message;
-
-        case numberTag:
-          // Treat `NaN` vs. `NaN` as equal.
-          return (object != +object)
-            ? other != +other
-            : object == +other;
-
-        case regexpTag:
-        case stringTag:
-          // Coerce regexes to strings and treat strings primitives and string
-          // objects as equal. See https://es5.github.io/#x15.10.6.4 for more details.
-          return object == (other + '');
-      }
-      return false;
-    }
-
-    /**
-     * A specialized version of `baseIsEqualDeep` for objects with support for
-     * partial deep comparisons.
-     *
-     * @private
-     * @param {Object} object The object to compare.
-     * @param {Object} other The other object to compare.
-     * @param {Function} equalFunc The function to determine equivalents of values.
-     * @param {Function} [customizer] The function to customize comparing values.
-     * @param {boolean} [isLoose] Specify performing partial comparisons.
-     * @param {Array} [stackA] Tracks traversed `value` objects.
-     * @param {Array} [stackB] Tracks traversed `other` objects.
-     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
-     */
-    function equalObjects(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
-      var objProps = keys(object),
-          objLength = objProps.length,
-          othProps = keys(other),
-          othLength = othProps.length;
-
-      if (objLength != othLength && !isLoose) {
-        return false;
-      }
-      var index = objLength;
-      while (index--) {
-        var key = objProps[index];
-        if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) {
-          return false;
-        }
-      }
-      var skipCtor = isLoose;
-      while (++index < objLength) {
-        key = objProps[index];
-        var objValue = object[key],
-            othValue = other[key],
-            result = customizer ? customizer(isLoose ? othValue : objValue, isLoose? objValue : othValue, key) : undefined;
-
-        // Recursively compare objects (susceptible to call stack limits).
-        if (!(result === undefined ? equalFunc(objValue, othValue, customizer, isLoose, stackA, stackB) : result)) {
-          return false;
-        }
-        skipCtor || (skipCtor = key == 'constructor');
-      }
-      if (!skipCtor) {
-        var objCtor = object.constructor,
-            othCtor = other.constructor;
-
-        // Non `Object` object instances with different constructors are not equal.
-        if (objCtor != othCtor &&
-            ('constructor' in object && 'constructor' in other) &&
-            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
-              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
-          return false;
-        }
-      }
-      return true;
-    }
-
-    /**
-     * Gets the appropriate "callback" function. If the `_.callback` method is
-     * customized this function returns the custom method, otherwise it returns
-     * the `baseCallback` function. If arguments are provided the chosen function
-     * is invoked with them and its result is returned.
-     *
-     * @private
-     * @returns {Function} Returns the chosen function or its result.
-     */
-    function getCallback(func, thisArg, argCount) {
-      var result = lodash.callback || callback;
-      result = result === callback ? baseCallback : result;
-      return argCount ? result(func, thisArg, argCount) : result;
-    }
-
-    /**
-     * Gets metadata for `func`.
-     *
-     * @private
-     * @param {Function} func The function to query.
-     * @returns {*} Returns the metadata for `func`.
-     */
-    var getData = !metaMap ? noop : function(func) {
-      return metaMap.get(func);
-    };
-
-    /**
-     * Gets the name of `func`.
-     *
-     * @private
-     * @param {Function} func The function to query.
-     * @returns {string} Returns the function name.
-     */
-    function getFuncName(func) {
-      var result = func.name,
-          array = realNames[result],
-          length = array ? array.length : 0;
-
-      while (length--) {
-        var data = array[length],
-            otherFunc = data.func;
-        if (otherFunc == null || otherFunc == func) {
-          return data.name;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Gets the appropriate "indexOf" function. If the `_.indexOf` method is
-     * customized this function returns the custom method, otherwise it returns
-     * the `baseIndexOf` function. If arguments are provided the chosen function
-     * is invoked with them and its result is returned.
-     *
-     * @private
-     * @returns {Function|number} Returns the chosen function or its result.
-     */
-    function getIndexOf(collection, target, fromIndex) {
-      var result = lodash.indexOf || indexOf;
-      result = result === indexOf ? baseIndexOf : result;
-      return collection ? result(collection, target, fromIndex) : result;
-    }
-
-    /**
-     * Gets the "length" property value of `object`.
-     *
-     * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
-     * that affects Safari on at least iOS 8.1-8.3 ARM64.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {*} Returns the "length" value.
-     */
-    var getLength = baseProperty('length');
-
-    /**
-     * Gets the propery names, values, and compare flags of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the match data of `object`.
-     */
-    function getMatchData(object) {
-      var result = pairs(object),
-          length = result.length;
-
-      while (length--) {
-        result[length][2] = isStrictComparable(result[length][1]);
-      }
-      return result;
-    }
-
-    /**
-     * Gets the native function at `key` of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {string} key The key of the method to get.
-     * @returns {*} Returns the function if it's native, else `undefined`.
-     */
-    function getNative(object, key) {
-      var value = object == null ? undefined : object[key];
-      return isNative(value) ? value : undefined;
-    }
-
-    /**
-     * Gets the view, applying any `transforms` to the `start` and `end` positions.
-     *
-     * @private
-     * @param {number} start The start of the view.
-     * @param {number} end The end of the view.
-     * @param {Array} transforms The transformations to apply to the view.
-     * @returns {Object} Returns an object containing the `start` and `end`
-     *  positions of the view.
-     */
-    function getView(start, end, transforms) {
-      var index = -1,
-          length = transforms.length;
-
-      while (++index < length) {
-        var data = transforms[index],
-            size = data.size;
-
-        switch (data.type) {
-          case 'drop':      start += size; break;
-          case 'dropRight': end -= size; break;
-          case 'take':      end = nativeMin(end, start + size); break;
-          case 'takeRight': start = nativeMax(start, end - size); break;
-        }
-      }
-      return { 'start': start, 'end': end };
-    }
-
-    /**
-     * Initializes an array clone.
-     *
-     * @private
-     * @param {Array} array The array to clone.
-     * @returns {Array} Returns the initialized clone.
-     */
-    function initCloneArray(array) {
-      var length = array.length,
-          result = new array.constructor(length);
-
-      // Add array properties assigned by `RegExp#exec`.
-      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
-        result.index = array.index;
-        result.input = array.input;
-      }
-      return result;
-    }
-
-    /**
-     * Initializes an object clone.
-     *
-     * @private
-     * @param {Object} object The object to clone.
-     * @returns {Object} Returns the initialized clone.
-     */
-    function initCloneObject(object) {
-      var Ctor = object.constructor;
-      if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) {
-        Ctor = Object;
-      }
-      return new Ctor;
-    }
-
-    /**
-     * Initializes an object clone based on its `toStringTag`.
-     *
-     * **Note:** This function only supports cloning values with tags of
-     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
-     *
-     * @private
-     * @param {Object} object The object to clone.
-     * @param {string} tag The `toStringTag` of the object to clone.
-     * @param {boolean} [isDeep] Specify a deep clone.
-     * @returns {Object} Returns the initialized clone.
-     */
-    function initCloneByTag(object, tag, isDeep) {
-      var Ctor = object.constructor;
-      switch (tag) {
-        case arrayBufferTag:
-          return bufferClone(object);
-
-        case boolTag:
-        case dateTag:
-          return new Ctor(+object);
-
-        case float32Tag: case float64Tag:
-        case int8Tag: case int16Tag: case int32Tag:
-        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
-          var buffer = object.buffer;
-          return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length);
-
-        case numberTag:
-        case stringTag:
-          return new Ctor(object);
-
-        case regexpTag:
-          var result = new Ctor(object.source, reFlags.exec(object));
-          result.lastIndex = object.lastIndex;
-      }
-      return result;
-    }
-
-    /**
-     * Invokes the method at `path` on `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path of the method to invoke.
-     * @param {Array} args The arguments to invoke the method with.
-     * @returns {*} Returns the result of the invoked method.
-     */
-    function invokePath(object, path, args) {
-      if (object != null && !isKey(path, object)) {
-        path = toPath(path);
-        object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
-        path = last(path);
-      }
-      var func = object == null ? object : object[path];
-      return func == null ? undefined : func.apply(object, args);
-    }
-
-    /**
-     * Checks if `value` is array-like.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
-     */
-    function isArrayLike(value) {
-      return value != null && isLength(getLength(value));
-    }
-
-    /**
-     * Checks if `value` is a valid array-like index.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
-     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
-     */
-    function isIndex(value, length) {
-      value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
-      length = length == null ? MAX_SAFE_INTEGER : length;
-      return value > -1 && value % 1 == 0 && value < length;
-    }
-
-    /**
-     * Checks if the provided arguments are from an iteratee call.
-     *
-     * @private
-     * @param {*} value The potential iteratee value argument.
-     * @param {*} index The potential iteratee index or key argument.
-     * @param {*} object The potential iteratee object argument.
-     * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
-     */
-    function isIterateeCall(value, index, object) {
-      if (!isObject(object)) {
-        return false;
-      }
-      var type = typeof index;
-      if (type == 'number'
-          ? (isArrayLike(object) && isIndex(index, object.length))
-          : (type == 'string' && index in object)) {
-        var other = object[index];
-        return value === value ? (value === other) : (other !== other);
-      }
-      return false;
-    }
-
-    /**
-     * Checks if `value` is a property name and not a property path.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @param {Object} [object] The object to query keys on.
-     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
-     */
-    function isKey(value, object) {
-      var type = typeof value;
-      if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') {
-        return true;
-      }
-      if (isArray(value)) {
-        return false;
-      }
-      var result = !reIsDeepProp.test(value);
-      return result || (object != null && value in toObject(object));
-    }
-
-    /**
-     * Checks if `func` has a lazy counterpart.
-     *
-     * @private
-     * @param {Function} func The function to check.
-     * @returns {boolean} Returns `true` if `func` has a lazy counterpart, else `false`.
-     */
-    function isLaziable(func) {
-      var funcName = getFuncName(func);
-      if (!(funcName in LazyWrapper.prototype)) {
-        return false;
-      }
-      var other = lodash[funcName];
-      if (func === other) {
-        return true;
-      }
-      var data = getData(other);
-      return !!data && func === data[0];
-    }
-
-    /**
-     * Checks if `value` is a valid array-like length.
-     *
-     * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
-     */
-    function isLength(value) {
-      return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
-    }
-
-    /**
-     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` if suitable for strict
-     *  equality comparisons, else `false`.
-     */
-    function isStrictComparable(value) {
-      return value === value && !isObject(value);
-    }
-
-    /**
-     * Merges the function metadata of `source` into `data`.
-     *
-     * Merging metadata reduces the number of wrappers required to invoke a function.
-     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
-     * may be applied regardless of execution order. Methods like `_.ary` and `_.rearg`
-     * augment function arguments, making the order in which they are executed important,
-     * preventing the merging of metadata. However, we make an exception for a safe
-     * common case where curried functions have `_.ary` and or `_.rearg` applied.
-     *
-     * @private
-     * @param {Array} data The destination metadata.
-     * @param {Array} source The source metadata.
-     * @returns {Array} Returns `data`.
-     */
-    function mergeData(data, source) {
-      var bitmask = data[1],
-          srcBitmask = source[1],
-          newBitmask = bitmask | srcBitmask,
-          isCommon = newBitmask < ARY_FLAG;
-
-      var isCombo =
-        (srcBitmask == ARY_FLAG && bitmask == CURRY_FLAG) ||
-        (srcBitmask == ARY_FLAG && bitmask == REARG_FLAG && data[7].length <= source[8]) ||
-        (srcBitmask == (ARY_FLAG | REARG_FLAG) && bitmask == CURRY_FLAG);
-
-      // Exit early if metadata can't be merged.
-      if (!(isCommon || isCombo)) {
-        return data;
-      }
-      // Use source `thisArg` if available.
-      if (srcBitmask & BIND_FLAG) {
-        data[2] = source[2];
-        // Set when currying a bound function.
-        newBitmask |= (bitmask & BIND_FLAG) ? 0 : CURRY_BOUND_FLAG;
-      }
-      // Compose partial arguments.
-      var value = source[3];
-      if (value) {
-        var partials = data[3];
-        data[3] = partials ? composeArgs(partials, value, source[4]) : arrayCopy(value);
-        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]);
-      }
-      // Compose partial right arguments.
-      value = source[5];
-      if (value) {
-        partials = data[5];
-        data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value);
-        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]);
-      }
-      // Use source `argPos` if available.
-      value = source[7];
-      if (value) {
-        data[7] = arrayCopy(value);
-      }
-      // Use source `ary` if it's smaller.
-      if (srcBitmask & ARY_FLAG) {
-        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
-      }
-      // Use source `arity` if one is not provided.
-      if (data[9] == null) {
-        data[9] = source[9];
-      }
-      // Use source `func` and merge bitmasks.
-      data[0] = source[0];
-      data[1] = newBitmask;
-
-      return data;
-    }
-
-    /**
-     * Used by `_.defaultsDeep` to customize its `_.merge` use.
-     *
-     * @private
-     * @param {*} objectValue The destination object property value.
-     * @param {*} sourceValue The source object property value.
-     * @returns {*} Returns the value to assign to the destination object.
-     */
-    function mergeDefaults(objectValue, sourceValue) {
-      return objectValue === undefined ? sourceValue : merge(objectValue, sourceValue, mergeDefaults);
-    }
-
-    /**
-     * A specialized version of `_.pick` which picks `object` properties specified
-     * by `props`.
-     *
-     * @private
-     * @param {Object} object The source object.
-     * @param {string[]} props The property names to pick.
-     * @returns {Object} Returns the new object.
-     */
-    function pickByArray(object, props) {
-      object = toObject(object);
-
-      var index = -1,
-          length = props.length,
-          result = {};
-
-      while (++index < length) {
-        var key = props[index];
-        if (key in object) {
-          result[key] = object[key];
-        }
-      }
-      return result;
-    }
-
-    /**
-     * A specialized version of `_.pick` which picks `object` properties `predicate`
-     * returns truthy for.
-     *
-     * @private
-     * @param {Object} object The source object.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {Object} Returns the new object.
-     */
-    function pickByCallback(object, predicate) {
-      var result = {};
-      baseForIn(object, function(value, key, object) {
-        if (predicate(value, key, object)) {
-          result[key] = value;
-        }
-      });
-      return result;
-    }
-
-    /**
-     * Reorder `array` according to the specified indexes where the element at
-     * the first index is assigned as the first element, the element at
-     * the second index is assigned as the second element, and so on.
-     *
-     * @private
-     * @param {Array} array The array to reorder.
-     * @param {Array} indexes The arranged array indexes.
-     * @returns {Array} Returns `array`.
-     */
-    function reorder(array, indexes) {
-      var arrLength = array.length,
-          length = nativeMin(indexes.length, arrLength),
-          oldArray = arrayCopy(array);
-
-      while (length--) {
-        var index = indexes[length];
-        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
-      }
-      return array;
-    }
-
-    /**
-     * Sets metadata for `func`.
-     *
-     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
-     * period of time, it will trip its breaker and transition to an identity function
-     * to avoid garbage collection pauses in V8. See [V8 issue 2070](https://code.google.com/p/v8/issues/detail?id=2070)
-     * for more details.
-     *
-     * @private
-     * @param {Function} func The function to associate metadata with.
-     * @param {*} data The metadata.
-     * @returns {Function} Returns `func`.
-     */
-    var setData = (function() {
-      var count = 0,
-          lastCalled = 0;
-
-      return function(key, value) {
-        var stamp = now(),
-            remaining = HOT_SPAN - (stamp - lastCalled);
-
-        lastCalled = stamp;
-        if (remaining > 0) {
-          if (++count >= HOT_COUNT) {
-            return key;
-          }
-        } else {
-          count = 0;
-        }
-        return baseSetData(key, value);
-      };
-    }());
-
-    /**
-     * A fallback implementation of `Object.keys` which creates an array of the
-     * own enumerable property names of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names.
-     */
-    function shimKeys(object) {
-      var props = keysIn(object),
-          propsLength = props.length,
-          length = propsLength && object.length;
-
-      var allowIndexes = !!length && isLength(length) &&
-        (isArray(object) || isArguments(object));
-
-      var index = -1,
-          result = [];
-
-      while (++index < propsLength) {
-        var key = props[index];
-        if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
-          result.push(key);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Converts `value` to an array-like object if it's not one.
-     *
-     * @private
-     * @param {*} value The value to process.
-     * @returns {Array|Object} Returns the array-like object.
-     */
-    function toIterable(value) {
-      if (value == null) {
-        return [];
-      }
-      if (!isArrayLike(value)) {
-        return values(value);
-      }
-      return isObject(value) ? value : Object(value);
-    }
-
-    /**
-     * Converts `value` to an object if it's not one.
-     *
-     * @private
-     * @param {*} value The value to process.
-     * @returns {Object} Returns the object.
-     */
-    function toObject(value) {
-      return isObject(value) ? value : Object(value);
-    }
-
-    /**
-     * Converts `value` to property path array if it's not one.
-     *
-     * @private
-     * @param {*} value The value to process.
-     * @returns {Array} Returns the property path array.
-     */
-    function toPath(value) {
-      if (isArray(value)) {
-        return value;
-      }
-      var result = [];
-      baseToString(value).replace(rePropName, function(match, number, quote, string) {
-        result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
-      });
-      return result;
-    }
-
-    /**
-     * Creates a clone of `wrapper`.
-     *
-     * @private
-     * @param {Object} wrapper The wrapper to clone.
-     * @returns {Object} Returns the cloned wrapper.
-     */
-    function wrapperClone(wrapper) {
-      return wrapper instanceof LazyWrapper
-        ? wrapper.clone()
-        : new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__));
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates an array of elements split into groups the length of `size`.
-     * If `collection` can't be split evenly, the final chunk will be the remaining
-     * elements.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to process.
-     * @param {number} [size=1] The length of each chunk.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Array} Returns the new array containing chunks.
-     * @example
-     *
-     * _.chunk(['a', 'b', 'c', 'd'], 2);
-     * // => [['a', 'b'], ['c', 'd']]
-     *
-     * _.chunk(['a', 'b', 'c', 'd'], 3);
-     * // => [['a', 'b', 'c'], ['d']]
-     */
-    function chunk(array, size, guard) {
-      if (guard ? isIterateeCall(array, size, guard) : size == null) {
-        size = 1;
-      } else {
-        size = nativeMax(nativeFloor(size) || 1, 1);
-      }
-      var index = 0,
-          length = array ? array.length : 0,
-          resIndex = -1,
-          result = Array(nativeCeil(length / size));
-
-      while (index < length) {
-        result[++resIndex] = baseSlice(array, index, (index += size));
-      }
-      return result;
-    }
-
-    /**
-     * Creates an array with all falsey values removed. The values `false`, `null`,
-     * `0`, `""`, `undefined`, and `NaN` are falsey.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to compact.
-     * @returns {Array} Returns the new array of filtered values.
-     * @example
-     *
-     * _.compact([0, 1, false, 2, '', 3]);
-     * // => [1, 2, 3]
-     */
-    function compact(array) {
-      var index = -1,
-          length = array ? array.length : 0,
-          resIndex = -1,
-          result = [];
-
-      while (++index < length) {
-        var value = array[index];
-        if (value) {
-          result[++resIndex] = value;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Creates an array of unique `array` values not included in the other
-     * provided arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {...Array} [values] The arrays of values to exclude.
-     * @returns {Array} Returns the new array of filtered values.
-     * @example
-     *
-     * _.difference([1, 2, 3], [4, 2]);
-     * // => [1, 3]
-     */
-    var difference = restParam(function(array, values) {
-      return (isObjectLike(array) && isArrayLike(array))
-        ? baseDifference(array, baseFlatten(values, false, true))
-        : [];
-    });
-
-    /**
-     * Creates a slice of `array` with `n` elements dropped from the beginning.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=1] The number of elements to drop.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.drop([1, 2, 3]);
-     * // => [2, 3]
-     *
-     * _.drop([1, 2, 3], 2);
-     * // => [3]
-     *
-     * _.drop([1, 2, 3], 5);
-     * // => []
-     *
-     * _.drop([1, 2, 3], 0);
-     * // => [1, 2, 3]
-     */
-    function drop(array, n, guard) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return [];
-      }
-      if (guard ? isIterateeCall(array, n, guard) : n == null) {
-        n = 1;
-      }
-      return baseSlice(array, n < 0 ? 0 : n);
-    }
-
-    /**
-     * Creates a slice of `array` with `n` elements dropped from the end.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=1] The number of elements to drop.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.dropRight([1, 2, 3]);
-     * // => [1, 2]
-     *
-     * _.dropRight([1, 2, 3], 2);
-     * // => [1]
-     *
-     * _.dropRight([1, 2, 3], 5);
-     * // => []
-     *
-     * _.dropRight([1, 2, 3], 0);
-     * // => [1, 2, 3]
-     */
-    function dropRight(array, n, guard) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return [];
-      }
-      if (guard ? isIterateeCall(array, n, guard) : n == null) {
-        n = 1;
-      }
-      n = length - (+n || 0);
-      return baseSlice(array, 0, n < 0 ? 0 : n);
-    }
-
-    /**
-     * Creates a slice of `array` excluding elements dropped from the end.
-     * Elements are dropped until `predicate` returns falsey. The predicate is
-     * bound to `thisArg` and invoked with three arguments: (value, index, array).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that match the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.dropRightWhile([1, 2, 3], function(n) {
-     *   return n > 1;
-     * });
-     * // => [1]
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': true },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': false }
-     * ];
-     *
-     * // using the `_.matches` callback shorthand
-     * _.pluck(_.dropRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
-     * // => ['barney', 'fred']
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.pluck(_.dropRightWhile(users, 'active', false), 'user');
-     * // => ['barney']
-     *
-     * // using the `_.property` callback shorthand
-     * _.pluck(_.dropRightWhile(users, 'active'), 'user');
-     * // => ['barney', 'fred', 'pebbles']
-     */
-    function dropRightWhile(array, predicate, thisArg) {
-      return (array && array.length)
-        ? baseWhile(array, getCallback(predicate, thisArg, 3), true, true)
-        : [];
-    }
-
-    /**
-     * Creates a slice of `array` excluding elements dropped from the beginning.
-     * Elements are dropped until `predicate` returns falsey. The predicate is
-     * bound to `thisArg` and invoked with three arguments: (value, index, array).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.dropWhile([1, 2, 3], function(n) {
-     *   return n < 3;
-     * });
-     * // => [3]
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': false },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': true }
-     * ];
-     *
-     * // using the `_.matches` callback shorthand
-     * _.pluck(_.dropWhile(users, { 'user': 'barney', 'active': false }), 'user');
-     * // => ['fred', 'pebbles']
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.pluck(_.dropWhile(users, 'active', false), 'user');
-     * // => ['pebbles']
-     *
-     * // using the `_.property` callback shorthand
-     * _.pluck(_.dropWhile(users, 'active'), 'user');
-     * // => ['barney', 'fred', 'pebbles']
-     */
-    function dropWhile(array, predicate, thisArg) {
-      return (array && array.length)
-        ? baseWhile(array, getCallback(predicate, thisArg, 3), true)
-        : [];
-    }
-
-    /**
-     * Fills elements of `array` with `value` from `start` up to, but not
-     * including, `end`.
-     *
-     * **Note:** This method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to fill.
-     * @param {*} value The value to fill `array` with.
-     * @param {number} [start=0] The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns `array`.
-     * @example
-     *
-     * var array = [1, 2, 3];
-     *
-     * _.fill(array, 'a');
-     * console.log(array);
-     * // => ['a', 'a', 'a']
-     *
-     * _.fill(Array(3), 2);
-     * // => [2, 2, 2]
-     *
-     * _.fill([4, 6, 8], '*', 1, 2);
-     * // => [4, '*', 8]
-     */
-    function fill(array, value, start, end) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return [];
-      }
-      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
-        start = 0;
-        end = length;
-      }
-      return baseFill(array, value, start, end);
-    }
-
-    /**
-     * This method is like `_.find` except that it returns the index of the first
-     * element `predicate` returns truthy for instead of the element itself.
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to search.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {number} Returns the index of the found element, else `-1`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': false },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': true }
-     * ];
-     *
-     * _.findIndex(users, function(chr) {
-     *   return chr.user == 'barney';
-     * });
-     * // => 0
-     *
-     * // using the `_.matches` callback shorthand
-     * _.findIndex(users, { 'user': 'fred', 'active': false });
-     * // => 1
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.findIndex(users, 'active', false);
-     * // => 0
-     *
-     * // using the `_.property` callback shorthand
-     * _.findIndex(users, 'active');
-     * // => 2
-     */
-    var findIndex = createFindIndex();
-
-    /**
-     * This method is like `_.findIndex` except that it iterates over elements
-     * of `collection` from right to left.
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to search.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {number} Returns the index of the found element, else `-1`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': true },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': false }
-     * ];
-     *
-     * _.findLastIndex(users, function(chr) {
-     *   return chr.user == 'pebbles';
-     * });
-     * // => 2
-     *
-     * // using the `_.matches` callback shorthand
-     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
-     * // => 0
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.findLastIndex(users, 'active', false);
-     * // => 2
-     *
-     * // using the `_.property` callback shorthand
-     * _.findLastIndex(users, 'active');
-     * // => 0
-     */
-    var findLastIndex = createFindIndex(true);
-
-    /**
-     * Gets the first element of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @alias head
-     * @category Array
-     * @param {Array} array The array to query.
-     * @returns {*} Returns the first element of `array`.
-     * @example
-     *
-     * _.first([1, 2, 3]);
-     * // => 1
-     *
-     * _.first([]);
-     * // => undefined
-     */
-    function first(array) {
-      return array ? array[0] : undefined;
-    }
-
-    /**
-     * Flattens a nested array. If `isDeep` is `true` the array is recursively
-     * flattened, otherwise it is only flattened a single level.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to flatten.
-     * @param {boolean} [isDeep] Specify a deep flatten.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Array} Returns the new flattened array.
-     * @example
-     *
-     * _.flatten([1, [2, 3, [4]]]);
-     * // => [1, 2, 3, [4]]
-     *
-     * // using `isDeep`
-     * _.flatten([1, [2, 3, [4]]], true);
-     * // => [1, 2, 3, 4]
-     */
-    function flatten(array, isDeep, guard) {
-      var length = array ? array.length : 0;
-      if (guard && isIterateeCall(array, isDeep, guard)) {
-        isDeep = false;
-      }
-      return length ? baseFlatten(array, isDeep) : [];
-    }
-
-    /**
-     * Recursively flattens a nested array.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to recursively flatten.
-     * @returns {Array} Returns the new flattened array.
-     * @example
-     *
-     * _.flattenDeep([1, [2, 3, [4]]]);
-     * // => [1, 2, 3, 4]
-     */
-    function flattenDeep(array) {
-      var length = array ? array.length : 0;
-      return length ? baseFlatten(array, true) : [];
-    }
-
-    /**
-     * Gets the index at which the first occurrence of `value` is found in `array`
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-     * for equality comparisons. If `fromIndex` is negative, it is used as the offset
-     * from the end of `array`. If `array` is sorted providing `true` for `fromIndex`
-     * performs a faster binary search.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to search.
-     * @param {*} value The value to search for.
-     * @param {boolean|number} [fromIndex=0] The index to search from or `true`
-     *  to perform a binary search on a sorted array.
-     * @returns {number} Returns the index of the matched value, else `-1`.
-     * @example
-     *
-     * _.indexOf([1, 2, 1, 2], 2);
-     * // => 1
-     *
-     * // using `fromIndex`
-     * _.indexOf([1, 2, 1, 2], 2, 2);
-     * // => 3
-     *
-     * // performing a binary search
-     * _.indexOf([1, 1, 2, 2], 2, true);
-     * // => 2
-     */
-    function indexOf(array, value, fromIndex) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return -1;
-      }
-      if (typeof fromIndex == 'number') {
-        fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex;
-      } else if (fromIndex) {
-        var index = binaryIndex(array, value);
-        if (index < length &&
-            (value === value ? (value === array[index]) : (array[index] !== array[index]))) {
-          return index;
-        }
-        return -1;
-      }
-      return baseIndexOf(array, value, fromIndex || 0);
-    }
-
-    /**
-     * Gets all but the last element of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.initial([1, 2, 3]);
-     * // => [1, 2]
-     */
-    function initial(array) {
-      return dropRight(array, 1);
-    }
-
-    /**
-     * Creates an array of unique values that are included in all of the provided
-     * arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @returns {Array} Returns the new array of shared values.
-     * @example
-     * _.intersection([1, 2], [4, 2], [2, 1]);
-     * // => [2]
-     */
-    var intersection = restParam(function(arrays) {
-      var othLength = arrays.length,
-          othIndex = othLength,
-          caches = Array(length),
-          indexOf = getIndexOf(),
-          isCommon = indexOf == baseIndexOf,
-          result = [];
-
-      while (othIndex--) {
-        var value = arrays[othIndex] = isArrayLike(value = arrays[othIndex]) ? value : [];
-        caches[othIndex] = (isCommon && value.length >= 120) ? createCache(othIndex && value) : null;
-      }
-      var array = arrays[0],
-          index = -1,
-          length = array ? array.length : 0,
-          seen = caches[0];
-
-      outer:
-      while (++index < length) {
-        value = array[index];
-        if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value, 0)) < 0) {
-          var othIndex = othLength;
-          while (--othIndex) {
-            var cache = caches[othIndex];
-            if ((cache ? cacheIndexOf(cache, value) : indexOf(arrays[othIndex], value, 0)) < 0) {
-              continue outer;
-            }
-          }
-          if (seen) {
-            seen.push(value);
-          }
-          result.push(value);
-        }
-      }
-      return result;
-    });
-
-    /**
-     * Gets the last element of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @returns {*} Returns the last element of `array`.
-     * @example
-     *
-     * _.last([1, 2, 3]);
-     * // => 3
-     */
-    function last(array) {
-      var length = array ? array.length : 0;
-      return length ? array[length - 1] : undefined;
-    }
-
-    /**
-     * This method is like `_.indexOf` except that it iterates over elements of
-     * `array` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to search.
-     * @param {*} value The value to search for.
-     * @param {boolean|number} [fromIndex=array.length-1] The index to search from
-     *  or `true` to perform a binary search on a sorted array.
-     * @returns {number} Returns the index of the matched value, else `-1`.
-     * @example
-     *
-     * _.lastIndexOf([1, 2, 1, 2], 2);
-     * // => 3
-     *
-     * // using `fromIndex`
-     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
-     * // => 1
-     *
-     * // performing a binary search
-     * _.lastIndexOf([1, 1, 2, 2], 2, true);
-     * // => 3
-     */
-    function lastIndexOf(array, value, fromIndex) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return -1;
-      }
-      var index = length;
-      if (typeof fromIndex == 'number') {
-        index = (fromIndex < 0 ? nativeMax(length + fromIndex, 0) : nativeMin(fromIndex || 0, length - 1)) + 1;
-      } else if (fromIndex) {
-        index = binaryIndex(array, value, true) - 1;
-        var other = array[index];
-        if (value === value ? (value === other) : (other !== other)) {
-          return index;
-        }
-        return -1;
-      }
-      if (value !== value) {
-        return indexOfNaN(array, index, true);
-      }
-      while (index--) {
-        if (array[index] === value) {
-          return index;
-        }
-      }
-      return -1;
-    }
-
-    /**
-     * Removes all provided values from `array` using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * **Note:** Unlike `_.without`, this method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {...*} [values] The values to remove.
-     * @returns {Array} Returns `array`.
-     * @example
-     *
-     * var array = [1, 2, 3, 1, 2, 3];
-     *
-     * _.pull(array, 2, 3);
-     * console.log(array);
-     * // => [1, 1]
-     */
-    function pull() {
-      var args = arguments,
-          array = args[0];
-
-      if (!(array && array.length)) {
-        return array;
-      }
-      var index = 0,
-          indexOf = getIndexOf(),
-          length = args.length;
-
-      while (++index < length) {
-        var fromIndex = 0,
-            value = args[index];
-
-        while ((fromIndex = indexOf(array, value, fromIndex)) > -1) {
-          splice.call(array, fromIndex, 1);
-        }
-      }
-      return array;
-    }
-
-    /**
-     * Removes elements from `array` corresponding to the given indexes and returns
-     * an array of the removed elements. Indexes may be specified as an array of
-     * indexes or as individual arguments.
-     *
-     * **Note:** Unlike `_.at`, this method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {...(number|number[])} [indexes] The indexes of elements to remove,
-     *  specified as individual indexes or arrays of indexes.
-     * @returns {Array} Returns the new array of removed elements.
-     * @example
-     *
-     * var array = [5, 10, 15, 20];
-     * var evens = _.pullAt(array, 1, 3);
-     *
-     * console.log(array);
-     * // => [5, 15]
-     *
-     * console.log(evens);
-     * // => [10, 20]
-     */
-    var pullAt = restParam(function(array, indexes) {
-      indexes = baseFlatten(indexes);
-
-      var result = baseAt(array, indexes);
-      basePullAt(array, indexes.sort(baseCompareAscending));
-      return result;
-    });
-
-    /**
-     * Removes all elements from `array` that `predicate` returns truthy for
-     * and returns an array of the removed elements. The predicate is bound to
-     * `thisArg` and invoked with three arguments: (value, index, array).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * **Note:** Unlike `_.filter`, this method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Array} Returns the new array of removed elements.
-     * @example
-     *
-     * var array = [1, 2, 3, 4];
-     * var evens = _.remove(array, function(n) {
-     *   return n % 2 == 0;
-     * });
-     *
-     * console.log(array);
-     * // => [1, 3]
-     *
-     * console.log(evens);
-     * // => [2, 4]
-     */
-    function remove(array, predicate, thisArg) {
-      var result = [];
-      if (!(array && array.length)) {
-        return result;
-      }
-      var index = -1,
-          indexes = [],
-          length = array.length;
-
-      predicate = getCallback(predicate, thisArg, 3);
-      while (++index < length) {
-        var value = array[index];
-        if (predicate(value, index, array)) {
-          result.push(value);
-          indexes.push(index);
-        }
-      }
-      basePullAt(array, indexes);
-      return result;
-    }
-
-    /**
-     * Gets all but the first element of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @alias tail
-     * @category Array
-     * @param {Array} array The array to query.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.rest([1, 2, 3]);
-     * // => [2, 3]
-     */
-    function rest(array) {
-      return drop(array, 1);
-    }
-
-    /**
-     * Creates a slice of `array` from `start` up to, but not including, `end`.
-     *
-     * **Note:** This method is used instead of `Array#slice` to support node
-     * lists in IE < 9 and to ensure dense arrays are returned.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to slice.
-     * @param {number} [start=0] The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns the slice of `array`.
-     */
-    function slice(array, start, end) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return [];
-      }
-      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
-        start = 0;
-        end = length;
-      }
-      return baseSlice(array, start, end);
-    }
-
-    /**
-     * Uses a binary search to determine the lowest index at which `value` should
-     * be inserted into `array` in order to maintain its sort order. If an iteratee
-     * function is provided it is invoked for `value` and each element of `array`
-     * to compute their sort ranking. The iteratee is bound to `thisArg` and
-     * invoked with one argument; (value).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     * @example
-     *
-     * _.sortedIndex([30, 50], 40);
-     * // => 1
-     *
-     * _.sortedIndex([4, 4, 5, 5], 5);
-     * // => 2
-     *
-     * var dict = { 'data': { 'thirty': 30, 'forty': 40, 'fifty': 50 } };
-     *
-     * // using an iteratee function
-     * _.sortedIndex(['thirty', 'fifty'], 'forty', function(word) {
-     *   return this.data[word];
-     * }, dict);
-     * // => 1
-     *
-     * // using the `_.property` callback shorthand
-     * _.sortedIndex([{ 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
-     * // => 1
-     */
-    var sortedIndex = createSortedIndex();
-
-    /**
-     * This method is like `_.sortedIndex` except that it returns the highest
-     * index at which `value` should be inserted into `array` in order to
-     * maintain its sort order.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     * @example
-     *
-     * _.sortedLastIndex([4, 4, 5, 5], 5);
-     * // => 4
-     */
-    var sortedLastIndex = createSortedIndex(true);
-
-    /**
-     * Creates a slice of `array` with `n` elements taken from the beginning.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=1] The number of elements to take.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.take([1, 2, 3]);
-     * // => [1]
-     *
-     * _.take([1, 2, 3], 2);
-     * // => [1, 2]
-     *
-     * _.take([1, 2, 3], 5);
-     * // => [1, 2, 3]
-     *
-     * _.take([1, 2, 3], 0);
-     * // => []
-     */
-    function take(array, n, guard) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return [];
-      }
-      if (guard ? isIterateeCall(array, n, guard) : n == null) {
-        n = 1;
-      }
-      return baseSlice(array, 0, n < 0 ? 0 : n);
-    }
-
-    /**
-     * Creates a slice of `array` with `n` elements taken from the end.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=1] The number of elements to take.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.takeRight([1, 2, 3]);
-     * // => [3]
-     *
-     * _.takeRight([1, 2, 3], 2);
-     * // => [2, 3]
-     *
-     * _.takeRight([1, 2, 3], 5);
-     * // => [1, 2, 3]
-     *
-     * _.takeRight([1, 2, 3], 0);
-     * // => []
-     */
-    function takeRight(array, n, guard) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return [];
-      }
-      if (guard ? isIterateeCall(array, n, guard) : n == null) {
-        n = 1;
-      }
-      n = length - (+n || 0);
-      return baseSlice(array, n < 0 ? 0 : n);
-    }
-
-    /**
-     * Creates a slice of `array` with elements taken from the end. Elements are
-     * taken until `predicate` returns falsey. The predicate is bound to `thisArg`
-     * and invoked with three arguments: (value, index, array).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.takeRightWhile([1, 2, 3], function(n) {
-     *   return n > 1;
-     * });
-     * // => [2, 3]
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': true },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': false }
-     * ];
-     *
-     * // using the `_.matches` callback shorthand
-     * _.pluck(_.takeRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
-     * // => ['pebbles']
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.pluck(_.takeRightWhile(users, 'active', false), 'user');
-     * // => ['fred', 'pebbles']
-     *
-     * // using the `_.property` callback shorthand
-     * _.pluck(_.takeRightWhile(users, 'active'), 'user');
-     * // => []
-     */
-    function takeRightWhile(array, predicate, thisArg) {
-      return (array && array.length)
-        ? baseWhile(array, getCallback(predicate, thisArg, 3), false, true)
-        : [];
-    }
-
-    /**
-     * Creates a slice of `array` with elements taken from the beginning. Elements
-     * are taken until `predicate` returns falsey. The predicate is bound to
-     * `thisArg` and invoked with three arguments: (value, index, array).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.takeWhile([1, 2, 3], function(n) {
-     *   return n < 3;
-     * });
-     * // => [1, 2]
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': false },
-     *   { 'user': 'fred',    'active': false},
-     *   { 'user': 'pebbles', 'active': true }
-     * ];
-     *
-     * // using the `_.matches` callback shorthand
-     * _.pluck(_.takeWhile(users, { 'user': 'barney', 'active': false }), 'user');
-     * // => ['barney']
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.pluck(_.takeWhile(users, 'active', false), 'user');
-     * // => ['barney', 'fred']
-     *
-     * // using the `_.property` callback shorthand
-     * _.pluck(_.takeWhile(users, 'active'), 'user');
-     * // => []
-     */
-    function takeWhile(array, predicate, thisArg) {
-      return (array && array.length)
-        ? baseWhile(array, getCallback(predicate, thisArg, 3))
-        : [];
-    }
-
-    /**
-     * Creates an array of unique values, in order, from all of the provided arrays
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @returns {Array} Returns the new array of combined values.
-     * @example
-     *
-     * _.union([1, 2], [4, 2], [2, 1]);
-     * // => [1, 2, 4]
-     */
-    var union = restParam(function(arrays) {
-      return baseUniq(baseFlatten(arrays, false, true));
-    });
-
-    /**
-     * Creates a duplicate-free version of an array, using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-     * for equality comparisons, in which only the first occurence of each element
-     * is kept. Providing `true` for `isSorted` performs a faster search algorithm
-     * for sorted arrays. If an iteratee function is provided it is invoked for
-     * each element in the array to generate the criterion by which uniqueness
-     * is computed. The `iteratee` is bound to `thisArg` and invoked with three
-     * arguments: (value, index, array).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @alias unique
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {boolean} [isSorted] Specify the array is sorted.
-     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Array} Returns the new duplicate-value-free array.
-     * @example
-     *
-     * _.uniq([2, 1, 2]);
-     * // => [2, 1]
-     *
-     * // using `isSorted`
-     * _.uniq([1, 1, 2], true);
-     * // => [1, 2]
-     *
-     * // using an iteratee function
-     * _.uniq([1, 2.5, 1.5, 2], function(n) {
-     *   return this.floor(n);
-     * }, Math);
-     * // => [1, 2.5]
-     *
-     * // using the `_.property` callback shorthand
-     * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
-     * // => [{ 'x': 1 }, { 'x': 2 }]
-     */
-    function uniq(array, isSorted, iteratee, thisArg) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return [];
-      }
-      if (isSorted != null && typeof isSorted != 'boolean') {
-        thisArg = iteratee;
-        iteratee = isIterateeCall(array, isSorted, thisArg) ? undefined : isSorted;
-        isSorted = false;
-      }
-      var callback = getCallback();
-      if (!(iteratee == null && callback === baseCallback)) {
-        iteratee = callback(iteratee, thisArg, 3);
-      }
-      return (isSorted && getIndexOf() == baseIndexOf)
-        ? sortedUniq(array, iteratee)
-        : baseUniq(array, iteratee);
-    }
-
-    /**
-     * This method is like `_.zip` except that it accepts an array of grouped
-     * elements and creates an array regrouping the elements to their pre-zip
-     * configuration.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array of grouped elements to process.
-     * @returns {Array} Returns the new array of regrouped elements.
-     * @example
-     *
-     * var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]);
-     * // => [['fred', 30, true], ['barney', 40, false]]
-     *
-     * _.unzip(zipped);
-     * // => [['fred', 'barney'], [30, 40], [true, false]]
-     */
-    function unzip(array) {
-      if (!(array && array.length)) {
-        return [];
-      }
-      var index = -1,
-          length = 0;
-
-      array = arrayFilter(array, function(group) {
-        if (isArrayLike(group)) {
-          length = nativeMax(group.length, length);
-          return true;
-        }
-      });
-      var result = Array(length);
-      while (++index < length) {
-        result[index] = arrayMap(array, baseProperty(index));
-      }
-      return result;
-    }
-
-    /**
-     * This method is like `_.unzip` except that it accepts an iteratee to specify
-     * how regrouped values should be combined. The `iteratee` is bound to `thisArg`
-     * and invoked with four arguments: (accumulator, value, index, group).
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array of grouped elements to process.
-     * @param {Function} [iteratee] The function to combine regrouped values.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Array} Returns the new array of regrouped elements.
-     * @example
-     *
-     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
-     * // => [[1, 10, 100], [2, 20, 200]]
-     *
-     * _.unzipWith(zipped, _.add);
-     * // => [3, 30, 300]
-     */
-    function unzipWith(array, iteratee, thisArg) {
-      var length = array ? array.length : 0;
-      if (!length) {
-        return [];
-      }
-      var result = unzip(array);
-      if (iteratee == null) {
-        return result;
-      }
-      iteratee = bindCallback(iteratee, thisArg, 4);
-      return arrayMap(result, function(group) {
-        return arrayReduce(group, iteratee, undefined, true);
-      });
-    }
-
-    /**
-     * Creates an array excluding all provided values using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {Array} array The array to filter.
-     * @param {...*} [values] The values to exclude.
-     * @returns {Array} Returns the new array of filtered values.
-     * @example
-     *
-     * _.without([1, 2, 1, 3], 1, 2);
-     * // => [3]
-     */
-    var without = restParam(function(array, values) {
-      return isArrayLike(array)
-        ? baseDifference(array, values)
-        : [];
-    });
-
-    /**
-     * Creates an array of unique values that is the [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
-     * of the provided arrays.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @returns {Array} Returns the new array of values.
-     * @example
-     *
-     * _.xor([1, 2], [4, 2]);
-     * // => [1, 4]
-     */
-    function xor() {
-      var index = -1,
-          length = arguments.length;
-
-      while (++index < length) {
-        var array = arguments[index];
-        if (isArrayLike(array)) {
-          var result = result
-            ? arrayPush(baseDifference(result, array), baseDifference(array, result))
-            : array;
-        }
-      }
-      return result ? baseUniq(result) : [];
-    }
-
-    /**
-     * Creates an array of grouped elements, the first of which contains the first
-     * elements of the given arrays, the second of which contains the second elements
-     * of the given arrays, and so on.
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {...Array} [arrays] The arrays to process.
-     * @returns {Array} Returns the new array of grouped elements.
-     * @example
-     *
-     * _.zip(['fred', 'barney'], [30, 40], [true, false]);
-     * // => [['fred', 30, true], ['barney', 40, false]]
-     */
-    var zip = restParam(unzip);
-
-    /**
-     * The inverse of `_.pairs`; this method returns an object composed from arrays
-     * of property names and values. Provide either a single two dimensional array,
-     * e.g. `[[key1, value1], [key2, value2]]` or two arrays, one of property names
-     * and one of corresponding values.
-     *
-     * @static
-     * @memberOf _
-     * @alias object
-     * @category Array
-     * @param {Array} props The property names.
-     * @param {Array} [values=[]] The property values.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * _.zipObject([['fred', 30], ['barney', 40]]);
-     * // => { 'fred': 30, 'barney': 40 }
-     *
-     * _.zipObject(['fred', 'barney'], [30, 40]);
-     * // => { 'fred': 30, 'barney': 40 }
-     */
-    function zipObject(props, values) {
-      var index = -1,
-          length = props ? props.length : 0,
-          result = {};
-
-      if (length && !values && !isArray(props[0])) {
-        values = [];
-      }
-      while (++index < length) {
-        var key = props[index];
-        if (values) {
-          result[key] = values[index];
-        } else if (key) {
-          result[key[0]] = key[1];
-        }
-      }
-      return result;
-    }
-
-    /**
-     * This method is like `_.zip` except that it accepts an iteratee to specify
-     * how grouped values should be combined. The `iteratee` is bound to `thisArg`
-     * and invoked with four arguments: (accumulator, value, index, group).
-     *
-     * @static
-     * @memberOf _
-     * @category Array
-     * @param {...Array} [arrays] The arrays to process.
-     * @param {Function} [iteratee] The function to combine grouped values.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Array} Returns the new array of grouped elements.
-     * @example
-     *
-     * _.zipWith([1, 2], [10, 20], [100, 200], _.add);
-     * // => [111, 222]
-     */
-    var zipWith = restParam(function(arrays) {
-      var length = arrays.length,
-          iteratee = length > 2 ? arrays[length - 2] : undefined,
-          thisArg = length > 1 ? arrays[length - 1] : undefined;
-
-      if (length > 2 && typeof iteratee == 'function') {
-        length -= 2;
-      } else {
-        iteratee = (length > 1 && typeof thisArg == 'function') ? (--length, thisArg) : undefined;
-        thisArg = undefined;
-      }
-      arrays.length = length;
-      return unzipWith(arrays, iteratee, thisArg);
-    });
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a `lodash` object that wraps `value` with explicit method
-     * chaining enabled.
-     *
-     * @static
-     * @memberOf _
-     * @category Chain
-     * @param {*} value The value to wrap.
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'age': 36 },
-     *   { 'user': 'fred',    'age': 40 },
-     *   { 'user': 'pebbles', 'age': 1 }
-     * ];
-     *
-     * var youngest = _.chain(users)
-     *   .sortBy('age')
-     *   .map(function(chr) {
-     *     return chr.user + ' is ' + chr.age;
-     *   })
-     *   .first()
-     *   .value();
-     * // => 'pebbles is 1'
-     */
-    function chain(value) {
-      var result = lodash(value);
-      result.__chain__ = true;
-      return result;
-    }
-
-    /**
-     * This method invokes `interceptor` and returns `value`. The interceptor is
-     * bound to `thisArg` and invoked with one argument; (value). The purpose of
-     * this method is to "tap into" a method chain in order to perform operations
-     * on intermediate results within the chain.
-     *
-     * @static
-     * @memberOf _
-     * @category Chain
-     * @param {*} value The value to provide to `interceptor`.
-     * @param {Function} interceptor The function to invoke.
-     * @param {*} [thisArg] The `this` binding of `interceptor`.
-     * @returns {*} Returns `value`.
-     * @example
-     *
-     * _([1, 2, 3])
-     *  .tap(function(array) {
-     *    array.pop();
-     *  })
-     *  .reverse()
-     *  .value();
-     * // => [2, 1]
-     */
-    function tap(value, interceptor, thisArg) {
-      interceptor.call(thisArg, value);
-      return value;
-    }
-
-    /**
-     * This method is like `_.tap` except that it returns the result of `interceptor`.
-     *
-     * @static
-     * @memberOf _
-     * @category Chain
-     * @param {*} value The value to provide to `interceptor`.
-     * @param {Function} interceptor The function to invoke.
-     * @param {*} [thisArg] The `this` binding of `interceptor`.
-     * @returns {*} Returns the result of `interceptor`.
-     * @example
-     *
-     * _('  abc  ')
-     *  .chain()
-     *  .trim()
-     *  .thru(function(value) {
-     *    return [value];
-     *  })
-     *  .value();
-     * // => ['abc']
-     */
-    function thru(value, interceptor, thisArg) {
-      return interceptor.call(thisArg, value);
-    }
-
-    /**
-     * Enables explicit method chaining on the wrapper object.
-     *
-     * @name chain
-     * @memberOf _
-     * @category Chain
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36 },
-     *   { 'user': 'fred',   'age': 40 }
-     * ];
-     *
-     * // without explicit chaining
-     * _(users).first();
-     * // => { 'user': 'barney', 'age': 36 }
-     *
-     * // with explicit chaining
-     * _(users).chain()
-     *   .first()
-     *   .pick('user')
-     *   .value();
-     * // => { 'user': 'barney' }
-     */
-    function wrapperChain() {
-      return chain(this);
-    }
-
-    /**
-     * Executes the chained sequence and returns the wrapped result.
-     *
-     * @name commit
-     * @memberOf _
-     * @category Chain
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var array = [1, 2];
-     * var wrapped = _(array).push(3);
-     *
-     * console.log(array);
-     * // => [1, 2]
-     *
-     * wrapped = wrapped.commit();
-     * console.log(array);
-     * // => [1, 2, 3]
-     *
-     * wrapped.last();
-     * // => 3
-     *
-     * console.log(array);
-     * // => [1, 2, 3]
-     */
-    function wrapperCommit() {
-      return new LodashWrapper(this.value(), this.__chain__);
-    }
-
-    /**
-     * Creates a new array joining a wrapped array with any additional arrays
-     * and/or values.
-     *
-     * @name concat
-     * @memberOf _
-     * @category Chain
-     * @param {...*} [values] The values to concatenate.
-     * @returns {Array} Returns the new concatenated array.
-     * @example
-     *
-     * var array = [1];
-     * var wrapped = _(array).concat(2, [3], [[4]]);
-     *
-     * console.log(wrapped.value());
-     * // => [1, 2, 3, [4]]
-     *
-     * console.log(array);
-     * // => [1]
-     */
-    var wrapperConcat = restParam(function(values) {
-      values = baseFlatten(values);
-      return this.thru(function(array) {
-        return arrayConcat(isArray(array) ? array : [toObject(array)], values);
-      });
-    });
-
-    /**
-     * Creates a clone of the chained sequence planting `value` as the wrapped value.
-     *
-     * @name plant
-     * @memberOf _
-     * @category Chain
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var array = [1, 2];
-     * var wrapped = _(array).map(function(value) {
-     *   return Math.pow(value, 2);
-     * });
-     *
-     * var other = [3, 4];
-     * var otherWrapped = wrapped.plant(other);
-     *
-     * otherWrapped.value();
-     * // => [9, 16]
-     *
-     * wrapped.value();
-     * // => [1, 4]
-     */
-    function wrapperPlant(value) {
-      var result,
-          parent = this;
-
-      while (parent instanceof baseLodash) {
-        var clone = wrapperClone(parent);
-        if (result) {
-          previous.__wrapped__ = clone;
-        } else {
-          result = clone;
-        }
-        var previous = clone;
-        parent = parent.__wrapped__;
-      }
-      previous.__wrapped__ = value;
-      return result;
-    }
-
-    /**
-     * Reverses the wrapped array so the first element becomes the last, the
-     * second element becomes the second to last, and so on.
-     *
-     * **Note:** This method mutates the wrapped array.
-     *
-     * @name reverse
-     * @memberOf _
-     * @category Chain
-     * @returns {Object} Returns the new reversed `lodash` wrapper instance.
-     * @example
-     *
-     * var array = [1, 2, 3];
-     *
-     * _(array).reverse().value()
-     * // => [3, 2, 1]
-     *
-     * console.log(array);
-     * // => [3, 2, 1]
-     */
-    function wrapperReverse() {
-      var value = this.__wrapped__;
-
-      var interceptor = function(value) {
-        return (wrapped && wrapped.__dir__ < 0) ? value : value.reverse();
-      };
-      if (value instanceof LazyWrapper) {
-        var wrapped = value;
-        if (this.__actions__.length) {
-          wrapped = new LazyWrapper(this);
-        }
-        wrapped = wrapped.reverse();
-        wrapped.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
-        return new LodashWrapper(wrapped, this.__chain__);
-      }
-      return this.thru(interceptor);
-    }
-
-    /**
-     * Produces the result of coercing the unwrapped value to a string.
-     *
-     * @name toString
-     * @memberOf _
-     * @category Chain
-     * @returns {string} Returns the coerced string value.
-     * @example
-     *
-     * _([1, 2, 3]).toString();
-     * // => '1,2,3'
-     */
-    function wrapperToString() {
-      return (this.value() + '');
-    }
-
-    /**
-     * Executes the chained sequence to extract the unwrapped value.
-     *
-     * @name value
-     * @memberOf _
-     * @alias run, toJSON, valueOf
-     * @category Chain
-     * @returns {*} Returns the resolved unwrapped value.
-     * @example
-     *
-     * _([1, 2, 3]).value();
-     * // => [1, 2, 3]
-     */
-    function wrapperValue() {
-      return baseWrapperValue(this.__wrapped__, this.__actions__);
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates an array of elements corresponding to the given keys, or indexes,
-     * of `collection`. Keys may be specified as individual arguments or as arrays
-     * of keys.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {...(number|number[]|string|string[])} [props] The property names
-     *  or indexes of elements to pick, specified individually or in arrays.
-     * @returns {Array} Returns the new array of picked elements.
-     * @example
-     *
-     * _.at(['a', 'b', 'c'], [0, 2]);
-     * // => ['a', 'c']
-     *
-     * _.at(['barney', 'fred', 'pebbles'], 0, 2);
-     * // => ['barney', 'pebbles']
-     */
-    var at = restParam(function(collection, props) {
-      return baseAt(collection, baseFlatten(props));
-    });
-
-    /**
-     * Creates an object composed of keys generated from the results of running
-     * each element of `collection` through `iteratee`. The corresponding value
-     * of each key is the number of times the key was returned by `iteratee`.
-     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
-     * (value, index|key, collection).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns the composed aggregate object.
-     * @example
-     *
-     * _.countBy([4.3, 6.1, 6.4], function(n) {
-     *   return Math.floor(n);
-     * });
-     * // => { '4': 1, '6': 2 }
-     *
-     * _.countBy([4.3, 6.1, 6.4], function(n) {
-     *   return this.floor(n);
-     * }, Math);
-     * // => { '4': 1, '6': 2 }
-     *
-     * _.countBy(['one', 'two', 'three'], 'length');
-     * // => { '3': 2, '5': 1 }
-     */
-    var countBy = createAggregator(function(result, value, key) {
-      hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1);
-    });
-
-    /**
-     * Checks if `predicate` returns truthy for **all** elements of `collection`.
-     * The predicate is bound to `thisArg` and invoked with three arguments:
-     * (value, index|key, collection).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @alias all
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {boolean} Returns `true` if all elements pass the predicate check,
-     *  else `false`.
-     * @example
-     *
-     * _.every([true, 1, null, 'yes'], Boolean);
-     * // => false
-     *
-     * var users = [
-     *   { 'user': 'barney', 'active': false },
-     *   { 'user': 'fred',   'active': false }
-     * ];
-     *
-     * // using the `_.matches` callback shorthand
-     * _.every(users, { 'user': 'barney', 'active': false });
-     * // => false
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.every(users, 'active', false);
-     * // => true
-     *
-     * // using the `_.property` callback shorthand
-     * _.every(users, 'active');
-     * // => false
-     */
-    function every(collection, predicate, thisArg) {
-      var func = isArray(collection) ? arrayEvery : baseEvery;
-      if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
-        predicate = undefined;
-      }
-      if (typeof predicate != 'function' || thisArg !== undefined) {
-        predicate = getCallback(predicate, thisArg, 3);
-      }
-      return func(collection, predicate);
-    }
-
-    /**
-     * Iterates over elements of `collection`, returning an array of all elements
-     * `predicate` returns truthy for. The predicate is bound to `thisArg` and
-     * invoked with three arguments: (value, index|key, collection).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @alias select
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Array} Returns the new filtered array.
-     * @example
-     *
-     * _.filter([4, 5, 6], function(n) {
-     *   return n % 2 == 0;
-     * });
-     * // => [4, 6]
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': true },
-     *   { 'user': 'fred',   'age': 40, 'active': false }
-     * ];
-     *
-     * // using the `_.matches` callback shorthand
-     * _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user');
-     * // => ['barney']
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.pluck(_.filter(users, 'active', false), 'user');
-     * // => ['fred']
-     *
-     * // using the `_.property` callback shorthand
-     * _.pluck(_.filter(users, 'active'), 'user');
-     * // => ['barney']
-     */
-    function filter(collection, predicate, thisArg) {
-      var func = isArray(collection) ? arrayFilter : baseFilter;
-      predicate = getCallback(predicate, thisArg, 3);
-      return func(collection, predicate);
-    }
-
-    /**
-     * Iterates over elements of `collection`, returning the first element
-     * `predicate` returns truthy for. The predicate is bound to `thisArg` and
-     * invoked with three arguments: (value, index|key, collection).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @alias detect
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to search.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {*} Returns the matched element, else `undefined`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'age': 36, 'active': true },
-     *   { 'user': 'fred',    'age': 40, 'active': false },
-     *   { 'user': 'pebbles', 'age': 1,  'active': true }
-     * ];
-     *
-     * _.result(_.find(users, function(chr) {
-     *   return chr.age < 40;
-     * }), 'user');
-     * // => 'barney'
-     *
-     * // using the `_.matches` callback shorthand
-     * _.result(_.find(users, { 'age': 1, 'active': true }), 'user');
-     * // => 'pebbles'
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.result(_.find(users, 'active', false), 'user');
-     * // => 'fred'
-     *
-     * // using the `_.property` callback shorthand
-     * _.result(_.find(users, 'active'), 'user');
-     * // => 'barney'
-     */
-    var find = createFind(baseEach);
-
-    /**
-     * This method is like `_.find` except that it iterates over elements of
-     * `collection` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to search.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {*} Returns the matched element, else `undefined`.
-     * @example
-     *
-     * _.findLast([1, 2, 3, 4], function(n) {
-     *   return n % 2 == 1;
-     * });
-     * // => 3
-     */
-    var findLast = createFind(baseEachRight, true);
-
-    /**
-     * Performs a deep comparison between each element in `collection` and the
-     * source object, returning the first element that has equivalent property
-     * values.
-     *
-     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
-     * numbers, `Object` objects, regexes, and strings. Objects are compared by
-     * their own, not inherited, enumerable properties. For comparing a single
-     * own or inherited property value see `_.matchesProperty`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to search.
-     * @param {Object} source The object of property values to match.
-     * @returns {*} Returns the matched element, else `undefined`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': true },
-     *   { 'user': 'fred',   'age': 40, 'active': false }
-     * ];
-     *
-     * _.result(_.findWhere(users, { 'age': 36, 'active': true }), 'user');
-     * // => 'barney'
-     *
-     * _.result(_.findWhere(users, { 'age': 40, 'active': false }), 'user');
-     * // => 'fred'
-     */
-    function findWhere(collection, source) {
-      return find(collection, baseMatches(source));
-    }
-
-    /**
-     * Iterates over elements of `collection` invoking `iteratee` for each element.
-     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
-     * (value, index|key, collection). Iteratee functions may exit iteration early
-     * by explicitly returning `false`.
-     *
-     * **Note:** As with other "Collections" methods, objects with a "length" property
-     * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
-     * may be used for object iteration.
-     *
-     * @static
-     * @memberOf _
-     * @alias each
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Array|Object|string} Returns `collection`.
-     * @example
-     *
-     * _([1, 2]).forEach(function(n) {
-     *   console.log(n);
-     * }).value();
-     * // => logs each value from left to right and returns the array
-     *
-     * _.forEach({ 'a': 1, 'b': 2 }, function(n, key) {
-     *   console.log(n, key);
-     * });
-     * // => logs each value-key pair and returns the object (iteration order is not guaranteed)
-     */
-    var forEach = createForEach(arrayEach, baseEach);
-
-    /**
-     * This method is like `_.forEach` except that it iterates over elements of
-     * `collection` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @alias eachRight
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Array|Object|string} Returns `collection`.
-     * @example
-     *
-     * _([1, 2]).forEachRight(function(n) {
-     *   console.log(n);
-     * }).value();
-     * // => logs each value from right to left and returns the array
-     */
-    var forEachRight = createForEach(arrayEachRight, baseEachRight);
-
-    /**
-     * Creates an object composed of keys generated from the results of running
-     * each element of `collection` through `iteratee`. The corresponding value
-     * of each key is an array of the elements responsible for generating the key.
-     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
-     * (value, index|key, collection).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns the composed aggregate object.
-     * @example
-     *
-     * _.groupBy([4.2, 6.1, 6.4], function(n) {
-     *   return Math.floor(n);
-     * });
-     * // => { '4': [4.2], '6': [6.1, 6.4] }
-     *
-     * _.groupBy([4.2, 6.1, 6.4], function(n) {
-     *   return this.floor(n);
-     * }, Math);
-     * // => { '4': [4.2], '6': [6.1, 6.4] }
-     *
-     * // using the `_.property` callback shorthand
-     * _.groupBy(['one', 'two', 'three'], 'length');
-     * // => { '3': ['one', 'two'], '5': ['three'] }
-     */
-    var groupBy = createAggregator(function(result, value, key) {
-      if (hasOwnProperty.call(result, key)) {
-        result[key].push(value);
-      } else {
-        result[key] = [value];
-      }
-    });
-
-    /**
-     * Checks if `value` is in `collection` using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
-     * for equality comparisons. If `fromIndex` is negative, it is used as the offset
-     * from the end of `collection`.
-     *
-     * @static
-     * @memberOf _
-     * @alias contains, include
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to search.
-     * @param {*} target The value to search for.
-     * @param {number} [fromIndex=0] The index to search from.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
-     * @returns {boolean} Returns `true` if a matching element is found, else `false`.
-     * @example
-     *
-     * _.includes([1, 2, 3], 1);
-     * // => true
-     *
-     * _.includes([1, 2, 3], 1, 2);
-     * // => false
-     *
-     * _.includes({ 'user': 'fred', 'age': 40 }, 'fred');
-     * // => true
-     *
-     * _.includes('pebbles', 'eb');
-     * // => true
-     */
-    function includes(collection, target, fromIndex, guard) {
-      var length = collection ? getLength(collection) : 0;
-      if (!isLength(length)) {
-        collection = values(collection);
-        length = collection.length;
-      }
-      if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) {
-        fromIndex = 0;
-      } else {
-        fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
-      }
-      return (typeof collection == 'string' || !isArray(collection) && isString(collection))
-        ? (fromIndex <= length && collection.indexOf(target, fromIndex) > -1)
-        : (!!length && getIndexOf(collection, target, fromIndex) > -1);
-    }
-
-    /**
-     * Creates an object composed of keys generated from the results of running
-     * each element of `collection` through `iteratee`. The corresponding value
-     * of each key is the last element responsible for generating the key. The
-     * iteratee function is bound to `thisArg` and invoked with three arguments:
-     * (value, index|key, collection).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns the composed aggregate object.
-     * @example
-     *
-     * var keyData = [
-     *   { 'dir': 'left', 'code': 97 },
-     *   { 'dir': 'right', 'code': 100 }
-     * ];
-     *
-     * _.indexBy(keyData, 'dir');
-     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
-     *
-     * _.indexBy(keyData, function(object) {
-     *   return String.fromCharCode(object.code);
-     * });
-     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
-     *
-     * _.indexBy(keyData, function(object) {
-     *   return this.fromCharCode(object.code);
-     * }, String);
-     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
-     */
-    var indexBy = createAggregator(function(result, value, key) {
-      result[key] = value;
-    });
-
-    /**
-     * Invokes the method at `path` of each element in `collection`, returning
-     * an array of the results of each invoked method. Any additional arguments
-     * are provided to each invoked method. If `methodName` is a function it is
-     * invoked for, and `this` bound to, each element in `collection`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Array|Function|string} path The path of the method to invoke or
-     *  the function invoked per iteration.
-     * @param {...*} [args] The arguments to invoke the method with.
-     * @returns {Array} Returns the array of results.
-     * @example
-     *
-     * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
-     * // => [[1, 5, 7], [1, 2, 3]]
-     *
-     * _.invoke([123, 456], String.prototype.split, '');
-     * // => [['1', '2', '3'], ['4', '5', '6']]
-     */
-    var invoke = restParam(function(collection, path, args) {
-      var index = -1,
-          isFunc = typeof path == 'function',
-          isProp = isKey(path),
-          result = isArrayLike(collection) ? Array(collection.length) : [];
-
-      baseEach(collection, function(value) {
-        var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined);
-        result[++index] = func ? func.apply(value, args) : invokePath(value, path, args);
-      });
-      return result;
-    });
-
-    /**
-     * Creates an array of values by running each element in `collection` through
-     * `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three
-     * arguments: (value, index|key, collection).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * Many lodash methods are guarded to work as iteratees for methods like
-     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
-     *
-     * The guarded methods are:
-     * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`,
-     * `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`,
-     * `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`,
-     * `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`,
-     * `sum`, `uniq`, and `words`
-     *
-     * @static
-     * @memberOf _
-     * @alias collect
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Array} Returns the new mapped array.
-     * @example
-     *
-     * function timesThree(n) {
-     *   return n * 3;
-     * }
-     *
-     * _.map([1, 2], timesThree);
-     * // => [3, 6]
-     *
-     * _.map({ 'a': 1, 'b': 2 }, timesThree);
-     * // => [3, 6] (iteration order is not guaranteed)
-     *
-     * var users = [
-     *   { 'user': 'barney' },
-     *   { 'user': 'fred' }
-     * ];
-     *
-     * // using the `_.property` callback shorthand
-     * _.map(users, 'user');
-     * // => ['barney', 'fred']
-     */
-    function map(collection, iteratee, thisArg) {
-      var func = isArray(collection) ? arrayMap : baseMap;
-      iteratee = getCallback(iteratee, thisArg, 3);
-      return func(collection, iteratee);
-    }
-
-    /**
-     * Creates an array of elements split into two groups, the first of which
-     * contains elements `predicate` returns truthy for, while the second of which
-     * contains elements `predicate` returns falsey for. The predicate is bound
-     * to `thisArg` and invoked with three arguments: (value, index|key, collection).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Array} Returns the array of grouped elements.
-     * @example
-     *
-     * _.partition([1, 2, 3], function(n) {
-     *   return n % 2;
-     * });
-     * // => [[1, 3], [2]]
-     *
-     * _.partition([1.2, 2.3, 3.4], function(n) {
-     *   return this.floor(n) % 2;
-     * }, Math);
-     * // => [[1.2, 3.4], [2.3]]
-     *
-     * var users = [
-     *   { 'user': 'barney',  'age': 36, 'active': false },
-     *   { 'user': 'fred',    'age': 40, 'active': true },
-     *   { 'user': 'pebbles', 'age': 1,  'active': false }
-     * ];
-     *
-     * var mapper = function(array) {
-     *   return _.pluck(array, 'user');
-     * };
-     *
-     * // using the `_.matches` callback shorthand
-     * _.map(_.partition(users, { 'age': 1, 'active': false }), mapper);
-     * // => [['pebbles'], ['barney', 'fred']]
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.map(_.partition(users, 'active', false), mapper);
-     * // => [['barney', 'pebbles'], ['fred']]
-     *
-     * // using the `_.property` callback shorthand
-     * _.map(_.partition(users, 'active'), mapper);
-     * // => [['fred'], ['barney', 'pebbles']]
-     */
-    var partition = createAggregator(function(result, value, key) {
-      result[key ? 0 : 1].push(value);
-    }, function() { return [[], []]; });
-
-    /**
-     * Gets the property value of `path` from all elements in `collection`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Array|string} path The path of the property to pluck.
-     * @returns {Array} Returns the property values.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36 },
-     *   { 'user': 'fred',   'age': 40 }
-     * ];
-     *
-     * _.pluck(users, 'user');
-     * // => ['barney', 'fred']
-     *
-     * var userIndex = _.indexBy(users, 'user');
-     * _.pluck(userIndex, 'age');
-     * // => [36, 40] (iteration order is not guaranteed)
-     */
-    function pluck(collection, path) {
-      return map(collection, property(path));
-    }
-
-    /**
-     * Reduces `collection` to a value which is the accumulated result of running
-     * each element in `collection` through `iteratee`, where each successive
-     * invocation is supplied the return value of the previous. If `accumulator`
-     * is not provided the first element of `collection` is used as the initial
-     * value. The `iteratee` is bound to `thisArg` and invoked with four arguments:
-     * (accumulator, value, index|key, collection).
-     *
-     * Many lodash methods are guarded to work as iteratees for methods like
-     * `_.reduce`, `_.reduceRight`, and `_.transform`.
-     *
-     * The guarded methods are:
-     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `sortByAll`,
-     * and `sortByOrder`
-     *
-     * @static
-     * @memberOf _
-     * @alias foldl, inject
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [accumulator] The initial value.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {*} Returns the accumulated value.
-     * @example
-     *
-     * _.reduce([1, 2], function(total, n) {
-     *   return total + n;
-     * });
-     * // => 3
-     *
-     * _.reduce({ 'a': 1, 'b': 2 }, function(result, n, key) {
-     *   result[key] = n * 3;
-     *   return result;
-     * }, {});
-     * // => { 'a': 3, 'b': 6 } (iteration order is not guaranteed)
-     */
-    var reduce = createReduce(arrayReduce, baseEach);
-
-    /**
-     * This method is like `_.reduce` except that it iterates over elements of
-     * `collection` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @alias foldr
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [accumulator] The initial value.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {*} Returns the accumulated value.
-     * @example
-     *
-     * var array = [[0, 1], [2, 3], [4, 5]];
-     *
-     * _.reduceRight(array, function(flattened, other) {
-     *   return flattened.concat(other);
-     * }, []);
-     * // => [4, 5, 2, 3, 0, 1]
-     */
-    var reduceRight = createReduce(arrayReduceRight, baseEachRight);
-
-    /**
-     * The opposite of `_.filter`; this method returns the elements of `collection`
-     * that `predicate` does **not** return truthy for.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Array} Returns the new filtered array.
-     * @example
-     *
-     * _.reject([1, 2, 3, 4], function(n) {
-     *   return n % 2 == 0;
-     * });
-     * // => [1, 3]
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': false },
-     *   { 'user': 'fred',   'age': 40, 'active': true }
-     * ];
-     *
-     * // using the `_.matches` callback shorthand
-     * _.pluck(_.reject(users, { 'age': 40, 'active': true }), 'user');
-     * // => ['barney']
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.pluck(_.reject(users, 'active', false), 'user');
-     * // => ['fred']
-     *
-     * // using the `_.property` callback shorthand
-     * _.pluck(_.reject(users, 'active'), 'user');
-     * // => ['barney']
-     */
-    function reject(collection, predicate, thisArg) {
-      var func = isArray(collection) ? arrayFilter : baseFilter;
-      predicate = getCallback(predicate, thisArg, 3);
-      return func(collection, function(value, index, collection) {
-        return !predicate(value, index, collection);
-      });
-    }
-
-    /**
-     * Gets a random element or `n` random elements from a collection.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to sample.
-     * @param {number} [n] The number of elements to sample.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {*} Returns the random sample(s).
-     * @example
-     *
-     * _.sample([1, 2, 3, 4]);
-     * // => 2
-     *
-     * _.sample([1, 2, 3, 4], 2);
-     * // => [3, 1]
-     */
-    function sample(collection, n, guard) {
-      if (guard ? isIterateeCall(collection, n, guard) : n == null) {
-        collection = toIterable(collection);
-        var length = collection.length;
-        return length > 0 ? collection[baseRandom(0, length - 1)] : undefined;
-      }
-      var index = -1,
-          result = toArray(collection),
-          length = result.length,
-          lastIndex = length - 1;
-
-      n = nativeMin(n < 0 ? 0 : (+n || 0), length);
-      while (++index < n) {
-        var rand = baseRandom(index, lastIndex),
-            value = result[rand];
-
-        result[rand] = result[index];
-        result[index] = value;
-      }
-      result.length = n;
-      return result;
-    }
-
-    /**
-     * Creates an array of shuffled values, using a version of the
-     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to shuffle.
-     * @returns {Array} Returns the new shuffled array.
-     * @example
-     *
-     * _.shuffle([1, 2, 3, 4]);
-     * // => [4, 1, 3, 2]
-     */
-    function shuffle(collection) {
-      return sample(collection, POSITIVE_INFINITY);
-    }
-
-    /**
-     * Gets the size of `collection` by returning its length for array-like
-     * values or the number of own enumerable properties for objects.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to inspect.
-     * @returns {number} Returns the size of `collection`.
-     * @example
-     *
-     * _.size([1, 2, 3]);
-     * // => 3
-     *
-     * _.size({ 'a': 1, 'b': 2 });
-     * // => 2
-     *
-     * _.size('pebbles');
-     * // => 7
-     */
-    function size(collection) {
-      var length = collection ? getLength(collection) : 0;
-      return isLength(length) ? length : keys(collection).length;
-    }
-
-    /**
-     * Checks if `predicate` returns truthy for **any** element of `collection`.
-     * The function returns as soon as it finds a passing value and does not iterate
-     * over the entire collection. The predicate is bound to `thisArg` and invoked
-     * with three arguments: (value, index|key, collection).
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @alias any
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {boolean} Returns `true` if any element passes the predicate check,
-     *  else `false`.
-     * @example
-     *
-     * _.some([null, 0, 'yes', false], Boolean);
-     * // => true
-     *
-     * var users = [
-     *   { 'user': 'barney', 'active': true },
-     *   { 'user': 'fred',   'active': false }
-     * ];
-     *
-     * // using the `_.matches` callback shorthand
-     * _.some(users, { 'user': 'barney', 'active': false });
-     * // => false
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.some(users, 'active', false);
-     * // => true
-     *
-     * // using the `_.property` callback shorthand
-     * _.some(users, 'active');
-     * // => true
-     */
-    function some(collection, predicate, thisArg) {
-      var func = isArray(collection) ? arraySome : baseSome;
-      if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
-        predicate = undefined;
-      }
-      if (typeof predicate != 'function' || thisArg !== undefined) {
-        predicate = getCallback(predicate, thisArg, 3);
-      }
-      return func(collection, predicate);
-    }
-
-    /**
-     * Creates an array of elements, sorted in ascending order by the results of
-     * running each element in a collection through `iteratee`. This method performs
-     * a stable sort, that is, it preserves the original sort order of equal elements.
-     * The `iteratee` is bound to `thisArg` and invoked with three arguments:
-     * (value, index|key, collection).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Array} Returns the new sorted array.
-     * @example
-     *
-     * _.sortBy([1, 2, 3], function(n) {
-     *   return Math.sin(n);
-     * });
-     * // => [3, 1, 2]
-     *
-     * _.sortBy([1, 2, 3], function(n) {
-     *   return this.sin(n);
-     * }, Math);
-     * // => [3, 1, 2]
-     *
-     * var users = [
-     *   { 'user': 'fred' },
-     *   { 'user': 'pebbles' },
-     *   { 'user': 'barney' }
-     * ];
-     *
-     * // using the `_.property` callback shorthand
-     * _.pluck(_.sortBy(users, 'user'), 'user');
-     * // => ['barney', 'fred', 'pebbles']
-     */
-    function sortBy(collection, iteratee, thisArg) {
-      if (collection == null) {
-        return [];
-      }
-      if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
-        iteratee = undefined;
-      }
-      var index = -1;
-      iteratee = getCallback(iteratee, thisArg, 3);
-
-      var result = baseMap(collection, function(value, key, collection) {
-        return { 'criteria': iteratee(value, key, collection), 'index': ++index, 'value': value };
-      });
-      return baseSortBy(result, compareAscending);
-    }
-
-    /**
-     * This method is like `_.sortBy` except that it can sort by multiple iteratees
-     * or property names.
-     *
-     * If a property name is provided for an iteratee the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If an object is provided for an iteratee the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {...(Function|Function[]|Object|Object[]|string|string[])} iteratees
-     *  The iteratees to sort by, specified as individual values or arrays of values.
-     * @returns {Array} Returns the new sorted array.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'fred',   'age': 48 },
-     *   { 'user': 'barney', 'age': 36 },
-     *   { 'user': 'fred',   'age': 42 },
-     *   { 'user': 'barney', 'age': 34 }
-     * ];
-     *
-     * _.map(_.sortByAll(users, ['user', 'age']), _.values);
-     * // => [['barney', 34], ['barney', 36], ['fred', 42], ['fred', 48]]
-     *
-     * _.map(_.sortByAll(users, 'user', function(chr) {
-     *   return Math.floor(chr.age / 10);
-     * }), _.values);
-     * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
-     */
-    var sortByAll = restParam(function(collection, iteratees) {
-      if (collection == null) {
-        return [];
-      }
-      var guard = iteratees[2];
-      if (guard && isIterateeCall(iteratees[0], iteratees[1], guard)) {
-        iteratees.length = 1;
-      }
-      return baseSortByOrder(collection, baseFlatten(iteratees), []);
-    });
-
-    /**
-     * This method is like `_.sortByAll` except that it allows specifying the
-     * sort orders of the iteratees to sort by. If `orders` is unspecified, all
-     * values are sorted in ascending order. Otherwise, a value is sorted in
-     * ascending order if its corresponding order is "asc", and descending if "desc".
-     *
-     * If a property name is provided for an iteratee the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If an object is provided for an iteratee the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
-     * @param {boolean[]} [orders] The sort orders of `iteratees`.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
-     * @returns {Array} Returns the new sorted array.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'fred',   'age': 48 },
-     *   { 'user': 'barney', 'age': 34 },
-     *   { 'user': 'fred',   'age': 42 },
-     *   { 'user': 'barney', 'age': 36 }
-     * ];
-     *
-     * // sort by `user` in ascending order and by `age` in descending order
-     * _.map(_.sortByOrder(users, ['user', 'age'], ['asc', 'desc']), _.values);
-     * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
-     */
-    function sortByOrder(collection, iteratees, orders, guard) {
-      if (collection == null) {
-        return [];
-      }
-      if (guard && isIterateeCall(iteratees, orders, guard)) {
-        orders = undefined;
-      }
-      if (!isArray(iteratees)) {
-        iteratees = iteratees == null ? [] : [iteratees];
-      }
-      if (!isArray(orders)) {
-        orders = orders == null ? [] : [orders];
-      }
-      return baseSortByOrder(collection, iteratees, orders);
-    }
-
-    /**
-     * Performs a deep comparison between each element in `collection` and the
-     * source object, returning an array of all elements that have equivalent
-     * property values.
-     *
-     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
-     * numbers, `Object` objects, regexes, and strings. Objects are compared by
-     * their own, not inherited, enumerable properties. For comparing a single
-     * own or inherited property value see `_.matchesProperty`.
-     *
-     * @static
-     * @memberOf _
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to search.
-     * @param {Object} source The object of property values to match.
-     * @returns {Array} Returns the new filtered array.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': false, 'pets': ['hoppy'] },
-     *   { 'user': 'fred',   'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] }
-     * ];
-     *
-     * _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user');
-     * // => ['barney']
-     *
-     * _.pluck(_.where(users, { 'pets': ['dino'] }), 'user');
-     * // => ['fred']
-     */
-    function where(collection, source) {
-      return filter(collection, baseMatches(source));
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Gets the number of milliseconds that have elapsed since the Unix epoch
-     * (1 January 1970 00:00:00 UTC).
-     *
-     * @static
-     * @memberOf _
-     * @category Date
-     * @example
-     *
-     * _.defer(function(stamp) {
-     *   console.log(_.now() - stamp);
-     * }, _.now());
-     * // => logs the number of milliseconds it took for the deferred function to be invoked
-     */
-    var now = nativeNow || function() {
-      return new Date().getTime();
-    };
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * The opposite of `_.before`; this method creates a function that invokes
-     * `func` once it is called `n` or more times.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {number} n The number of calls before `func` is invoked.
-     * @param {Function} func The function to restrict.
-     * @returns {Function} Returns the new restricted function.
-     * @example
-     *
-     * var saves = ['profile', 'settings'];
-     *
-     * var done = _.after(saves.length, function() {
-     *   console.log('done saving!');
-     * });
-     *
-     * _.forEach(saves, function(type) {
-     *   asyncSave({ 'type': type, 'complete': done });
-     * });
-     * // => logs 'done saving!' after the two async saves have completed
-     */
-    function after(n, func) {
-      if (typeof func != 'function') {
-        if (typeof n == 'function') {
-          var temp = n;
-          n = func;
-          func = temp;
-        } else {
-          throw new TypeError(FUNC_ERROR_TEXT);
-        }
-      }
-      n = nativeIsFinite(n = +n) ? n : 0;
-      return function() {
-        if (--n < 1) {
-          return func.apply(this, arguments);
-        }
-      };
-    }
-
-    /**
-     * Creates a function that accepts up to `n` arguments ignoring any
-     * additional arguments.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to cap arguments for.
-     * @param {number} [n=func.length] The arity cap.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
-     * // => [6, 8, 10]
-     */
-    function ary(func, n, guard) {
-      if (guard && isIterateeCall(func, n, guard)) {
-        n = undefined;
-      }
-      n = (func && n == null) ? func.length : nativeMax(+n || 0, 0);
-      return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n);
-    }
-
-    /**
-     * Creates a function that invokes `func`, with the `this` binding and arguments
-     * of the created function, while it is called less than `n` times. Subsequent
-     * calls to the created function return the result of the last `func` invocation.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {number} n The number of calls at which `func` is no longer invoked.
-     * @param {Function} func The function to restrict.
-     * @returns {Function} Returns the new restricted function.
-     * @example
-     *
-     * jQuery('#add').on('click', _.before(5, addContactToList));
-     * // => allows adding up to 4 contacts to the list
-     */
-    function before(n, func) {
-      var result;
-      if (typeof func != 'function') {
-        if (typeof n == 'function') {
-          var temp = n;
-          n = func;
-          func = temp;
-        } else {
-          throw new TypeError(FUNC_ERROR_TEXT);
-        }
-      }
-      return function() {
-        if (--n > 0) {
-          result = func.apply(this, arguments);
-        }
-        if (n <= 1) {
-          func = undefined;
-        }
-        return result;
-      };
-    }
-
-    /**
-     * Creates a function that invokes `func` with the `this` binding of `thisArg`
-     * and prepends any additional `_.bind` arguments to those provided to the
-     * bound function.
-     *
-     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
-     * may be used as a placeholder for partially applied arguments.
-     *
-     * **Note:** Unlike native `Function#bind` this method does not set the "length"
-     * property of bound functions.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to bind.
-     * @param {*} thisArg The `this` binding of `func`.
-     * @param {...*} [partials] The arguments to be partially applied.
-     * @returns {Function} Returns the new bound function.
-     * @example
-     *
-     * var greet = function(greeting, punctuation) {
-     *   return greeting + ' ' + this.user + punctuation;
-     * };
-     *
-     * var object = { 'user': 'fred' };
-     *
-     * var bound = _.bind(greet, object, 'hi');
-     * bound('!');
-     * // => 'hi fred!'
-     *
-     * // using placeholders
-     * var bound = _.bind(greet, object, _, '!');
-     * bound('hi');
-     * // => 'hi fred!'
-     */
-    var bind = restParam(function(func, thisArg, partials) {
-      var bitmask = BIND_FLAG;
-      if (partials.length) {
-        var holders = replaceHolders(partials, bind.placeholder);
-        bitmask |= PARTIAL_FLAG;
-      }
-      return createWrapper(func, bitmask, thisArg, partials, holders);
-    });
-
-    /**
-     * Binds methods of an object to the object itself, overwriting the existing
-     * method. Method names may be specified as individual arguments or as arrays
-     * of method names. If no method names are provided all enumerable function
-     * properties, own and inherited, of `object` are bound.
-     *
-     * **Note:** This method does not set the "length" property of bound functions.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Object} object The object to bind and assign the bound methods to.
-     * @param {...(string|string[])} [methodNames] The object method names to bind,
-     *  specified as individual method names or arrays of method names.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var view = {
-     *   'label': 'docs',
-     *   'onClick': function() {
-     *     console.log('clicked ' + this.label);
-     *   }
-     * };
-     *
-     * _.bindAll(view);
-     * jQuery('#docs').on('click', view.onClick);
-     * // => logs 'clicked docs' when the element is clicked
-     */
-    var bindAll = restParam(function(object, methodNames) {
-      methodNames = methodNames.length ? baseFlatten(methodNames) : functions(object);
-
-      var index = -1,
-          length = methodNames.length;
-
-      while (++index < length) {
-        var key = methodNames[index];
-        object[key] = createWrapper(object[key], BIND_FLAG, object);
-      }
-      return object;
-    });
-
-    /**
-     * Creates a function that invokes the method at `object[key]` and prepends
-     * any additional `_.bindKey` arguments to those provided to the bound function.
-     *
-     * This method differs from `_.bind` by allowing bound functions to reference
-     * methods that may be redefined or don't yet exist.
-     * See [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
-     * for more details.
-     *
-     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
-     * builds, may be used as a placeholder for partially applied arguments.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Object} object The object the method belongs to.
-     * @param {string} key The key of the method.
-     * @param {...*} [partials] The arguments to be partially applied.
-     * @returns {Function} Returns the new bound function.
-     * @example
-     *
-     * var object = {
-     *   'user': 'fred',
-     *   'greet': function(greeting, punctuation) {
-     *     return greeting + ' ' + this.user + punctuation;
-     *   }
-     * };
-     *
-     * var bound = _.bindKey(object, 'greet', 'hi');
-     * bound('!');
-     * // => 'hi fred!'
-     *
-     * object.greet = function(greeting, punctuation) {
-     *   return greeting + 'ya ' + this.user + punctuation;
-     * };
-     *
-     * bound('!');
-     * // => 'hiya fred!'
-     *
-     * // using placeholders
-     * var bound = _.bindKey(object, 'greet', _, '!');
-     * bound('hi');
-     * // => 'hiya fred!'
-     */
-    var bindKey = restParam(function(object, key, partials) {
-      var bitmask = BIND_FLAG | BIND_KEY_FLAG;
-      if (partials.length) {
-        var holders = replaceHolders(partials, bindKey.placeholder);
-        bitmask |= PARTIAL_FLAG;
-      }
-      return createWrapper(key, bitmask, object, partials, holders);
-    });
-
-    /**
-     * Creates a function that accepts one or more arguments of `func` that when
-     * called either invokes `func` returning its result, if all `func` arguments
-     * have been provided, or returns a function that accepts one or more of the
-     * remaining `func` arguments, and so on. The arity of `func` may be specified
-     * if `func.length` is not sufficient.
-     *
-     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
-     * may be used as a placeholder for provided arguments.
-     *
-     * **Note:** This method does not set the "length" property of curried functions.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to curry.
-     * @param {number} [arity=func.length] The arity of `func`.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Function} Returns the new curried function.
-     * @example
-     *
-     * var abc = function(a, b, c) {
-     *   return [a, b, c];
-     * };
-     *
-     * var curried = _.curry(abc);
-     *
-     * curried(1)(2)(3);
-     * // => [1, 2, 3]
-     *
-     * curried(1, 2)(3);
-     * // => [1, 2, 3]
-     *
-     * curried(1, 2, 3);
-     * // => [1, 2, 3]
-     *
-     * // using placeholders
-     * curried(1)(_, 3)(2);
-     * // => [1, 2, 3]
-     */
-    var curry = createCurry(CURRY_FLAG);
-
-    /**
-     * This method is like `_.curry` except that arguments are applied to `func`
-     * in the manner of `_.partialRight` instead of `_.partial`.
-     *
-     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
-     * builds, may be used as a placeholder for provided arguments.
-     *
-     * **Note:** This method does not set the "length" property of curried functions.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to curry.
-     * @param {number} [arity=func.length] The arity of `func`.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Function} Returns the new curried function.
-     * @example
-     *
-     * var abc = function(a, b, c) {
-     *   return [a, b, c];
-     * };
-     *
-     * var curried = _.curryRight(abc);
-     *
-     * curried(3)(2)(1);
-     * // => [1, 2, 3]
-     *
-     * curried(2, 3)(1);
-     * // => [1, 2, 3]
-     *
-     * curried(1, 2, 3);
-     * // => [1, 2, 3]
-     *
-     * // using placeholders
-     * curried(3)(1, _)(2);
-     * // => [1, 2, 3]
-     */
-    var curryRight = createCurry(CURRY_RIGHT_FLAG);
-
-    /**
-     * Creates a debounced function that delays invoking `func` until after `wait`
-     * milliseconds have elapsed since the last time the debounced function was
-     * invoked. The debounced function comes with a `cancel` method to cancel
-     * delayed invocations. Provide an options object to indicate that `func`
-     * should be invoked on the leading and/or trailing edge of the `wait` timeout.
-     * Subsequent calls to the debounced function return the result of the last
-     * `func` invocation.
-     *
-     * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
-     * on the trailing edge of the timeout only if the the debounced function is
-     * invoked more than once during the `wait` timeout.
-     *
-     * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
-     * for details over the differences between `_.debounce` and `_.throttle`.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to debounce.
-     * @param {number} [wait=0] The number of milliseconds to delay.
-     * @param {Object} [options] The options object.
-     * @param {boolean} [options.leading=false] Specify invoking on the leading
-     *  edge of the timeout.
-     * @param {number} [options.maxWait] The maximum time `func` is allowed to be
-     *  delayed before it is invoked.
-     * @param {boolean} [options.trailing=true] Specify invoking on the trailing
-     *  edge of the timeout.
-     * @returns {Function} Returns the new debounced function.
-     * @example
-     *
-     * // avoid costly calculations while the window size is in flux
-     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
-     *
-     * // invoke `sendMail` when the click event is fired, debouncing subsequent calls
-     * jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
-     *   'leading': true,
-     *   'trailing': false
-     * }));
-     *
-     * // ensure `batchLog` is invoked once after 1 second of debounced calls
-     * var source = new EventSource('/stream');
-     * jQuery(source).on('message', _.debounce(batchLog, 250, {
-     *   'maxWait': 1000
-     * }));
-     *
-     * // cancel a debounced call
-     * var todoChanges = _.debounce(batchLog, 1000);
-     * Object.observe(models.todo, todoChanges);
-     *
-     * Object.observe(models, function(changes) {
-     *   if (_.find(changes, { 'user': 'todo', 'type': 'delete'})) {
-     *     todoChanges.cancel();
-     *   }
-     * }, ['delete']);
-     *
-     * // ...at some point `models.todo` is changed
-     * models.todo.completed = true;
-     *
-     * // ...before 1 second has passed `models.todo` is deleted
-     * // which cancels the debounced `todoChanges` call
-     * delete models.todo;
-     */
-    function debounce(func, wait, options) {
-      var args,
-          maxTimeoutId,
-          result,
-          stamp,
-          thisArg,
-          timeoutId,
-          trailingCall,
-          lastCalled = 0,
-          maxWait = false,
-          trailing = true;
-
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      wait = wait < 0 ? 0 : (+wait || 0);
-      if (options === true) {
-        var leading = true;
-        trailing = false;
-      } else if (isObject(options)) {
-        leading = !!options.leading;
-        maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait);
-        trailing = 'trailing' in options ? !!options.trailing : trailing;
-      }
-
-      function cancel() {
-        if (timeoutId) {
-          clearTimeout(timeoutId);
-        }
-        if (maxTimeoutId) {
-          clearTimeout(maxTimeoutId);
-        }
-        lastCalled = 0;
-        maxTimeoutId = timeoutId = trailingCall = undefined;
-      }
-
-      function complete(isCalled, id) {
-        if (id) {
-          clearTimeout(id);
-        }
-        maxTimeoutId = timeoutId = trailingCall = undefined;
-        if (isCalled) {
-          lastCalled = now();
-          result = func.apply(thisArg, args);
-          if (!timeoutId && !maxTimeoutId) {
-            args = thisArg = undefined;
-          }
-        }
-      }
-
-      function delayed() {
-        var remaining = wait - (now() - stamp);
-        if (remaining <= 0 || remaining > wait) {
-          complete(trailingCall, maxTimeoutId);
-        } else {
-          timeoutId = setTimeout(delayed, remaining);
-        }
-      }
-
-      function maxDelayed() {
-        complete(trailing, timeoutId);
-      }
-
-      function debounced() {
-        args = arguments;
-        stamp = now();
-        thisArg = this;
-        trailingCall = trailing && (timeoutId || !leading);
-
-        if (maxWait === false) {
-          var leadingCall = leading && !timeoutId;
-        } else {
-          if (!maxTimeoutId && !leading) {
-            lastCalled = stamp;
-          }
-          var remaining = maxWait - (stamp - lastCalled),
-              isCalled = remaining <= 0 || remaining > maxWait;
-
-          if (isCalled) {
-            if (maxTimeoutId) {
-              maxTimeoutId = clearTimeout(maxTimeoutId);
-            }
-            lastCalled = stamp;
-            result = func.apply(thisArg, args);
-          }
-          else if (!maxTimeoutId) {
-            maxTimeoutId = setTimeout(maxDelayed, remaining);
-          }
-        }
-        if (isCalled && timeoutId) {
-          timeoutId = clearTimeout(timeoutId);
-        }
-        else if (!timeoutId && wait !== maxWait) {
-          timeoutId = setTimeout(delayed, wait);
-        }
-        if (leadingCall) {
-          isCalled = true;
-          result = func.apply(thisArg, args);
-        }
-        if (isCalled && !timeoutId && !maxTimeoutId) {
-          args = thisArg = undefined;
-        }
-        return result;
-      }
-      debounced.cancel = cancel;
-      return debounced;
-    }
-
-    /**
-     * Defers invoking the `func` until the current call stack has cleared. Any
-     * additional arguments are provided to `func` when it is invoked.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to defer.
-     * @param {...*} [args] The arguments to invoke the function with.
-     * @returns {number} Returns the timer id.
-     * @example
-     *
-     * _.defer(function(text) {
-     *   console.log(text);
-     * }, 'deferred');
-     * // logs 'deferred' after one or more milliseconds
-     */
-    var defer = restParam(function(func, args) {
-      return baseDelay(func, 1, args);
-    });
-
-    /**
-     * Invokes `func` after `wait` milliseconds. Any additional arguments are
-     * provided to `func` when it is invoked.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to delay.
-     * @param {number} wait The number of milliseconds to delay invocation.
-     * @param {...*} [args] The arguments to invoke the function with.
-     * @returns {number} Returns the timer id.
-     * @example
-     *
-     * _.delay(function(text) {
-     *   console.log(text);
-     * }, 1000, 'later');
-     * // => logs 'later' after one second
-     */
-    var delay = restParam(function(func, wait, args) {
-      return baseDelay(func, wait, args);
-    });
-
-    /**
-     * Creates a function that returns the result of invoking the provided
-     * functions with the `this` binding of the created function, where each
-     * successive invocation is supplied the return value of the previous.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {...Function} [funcs] Functions to invoke.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * var addSquare = _.flow(_.add, square);
-     * addSquare(1, 2);
-     * // => 9
-     */
-    var flow = createFlow();
-
-    /**
-     * This method is like `_.flow` except that it creates a function that
-     * invokes the provided functions from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @alias backflow, compose
-     * @category Function
-     * @param {...Function} [funcs] Functions to invoke.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * var addSquare = _.flowRight(square, _.add);
-     * addSquare(1, 2);
-     * // => 9
-     */
-    var flowRight = createFlow(true);
-
-    /**
-     * Creates a function that memoizes the result of `func`. If `resolver` is
-     * provided it determines the cache key for storing the result based on the
-     * arguments provided to the memoized function. By default, the first argument
-     * provided to the memoized function is coerced to a string and used as the
-     * cache key. The `func` is invoked with the `this` binding of the memoized
-     * function.
-     *
-     * **Note:** The cache is exposed as the `cache` property on the memoized
-     * function. Its creation may be customized by replacing the `_.memoize.Cache`
-     * constructor with one whose instances implement the [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
-     * method interface of `get`, `has`, and `set`.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to have its output memoized.
-     * @param {Function} [resolver] The function to resolve the cache key.
-     * @returns {Function} Returns the new memoizing function.
-     * @example
-     *
-     * var upperCase = _.memoize(function(string) {
-     *   return string.toUpperCase();
-     * });
-     *
-     * upperCase('fred');
-     * // => 'FRED'
-     *
-     * // modifying the result cache
-     * upperCase.cache.set('fred', 'BARNEY');
-     * upperCase('fred');
-     * // => 'BARNEY'
-     *
-     * // replacing `_.memoize.Cache`
-     * var object = { 'user': 'fred' };
-     * var other = { 'user': 'barney' };
-     * var identity = _.memoize(_.identity);
-     *
-     * identity(object);
-     * // => { 'user': 'fred' }
-     * identity(other);
-     * // => { 'user': 'fred' }
-     *
-     * _.memoize.Cache = WeakMap;
-     * var identity = _.memoize(_.identity);
-     *
-     * identity(object);
-     * // => { 'user': 'fred' }
-     * identity(other);
-     * // => { 'user': 'barney' }
-     */
-    function memoize(func, resolver) {
-      if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      var memoized = function() {
-        var args = arguments,
-            key = resolver ? resolver.apply(this, args) : args[0],
-            cache = memoized.cache;
-
-        if (cache.has(key)) {
-          return cache.get(key);
-        }
-        var result = func.apply(this, args);
-        memoized.cache = cache.set(key, result);
-        return result;
-      };
-      memoized.cache = new memoize.Cache;
-      return memoized;
-    }
-
-    /**
-     * Creates a function that runs each argument through a corresponding
-     * transform function.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to wrap.
-     * @param {...(Function|Function[])} [transforms] The functions to transform
-     * arguments, specified as individual functions or arrays of functions.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * function doubled(n) {
-     *   return n * 2;
-     * }
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * var modded = _.modArgs(function(x, y) {
-     *   return [x, y];
-     * }, square, doubled);
-     *
-     * modded(1, 2);
-     * // => [1, 4]
-     *
-     * modded(5, 10);
-     * // => [25, 20]
-     */
-    var modArgs = restParam(function(func, transforms) {
-      transforms = baseFlatten(transforms);
-      if (typeof func != 'function' || !arrayEvery(transforms, baseIsFunction)) {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      var length = transforms.length;
-      return restParam(function(args) {
-        var index = nativeMin(args.length, length);
-        while (index--) {
-          args[index] = transforms[index](args[index]);
-        }
-        return func.apply(this, args);
-      });
-    });
-
-    /**
-     * Creates a function that negates the result of the predicate `func`. The
-     * `func` predicate is invoked with the `this` binding and arguments of the
-     * created function.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} predicate The predicate to negate.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * function isEven(n) {
-     *   return n % 2 == 0;
-     * }
-     *
-     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
-     * // => [1, 3, 5]
-     */
-    function negate(predicate) {
-      if (typeof predicate != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      return function() {
-        return !predicate.apply(this, arguments);
-      };
-    }
-
-    /**
-     * Creates a function that is restricted to invoking `func` once. Repeat calls
-     * to the function return the value of the first call. The `func` is invoked
-     * with the `this` binding and arguments of the created function.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to restrict.
-     * @returns {Function} Returns the new restricted function.
-     * @example
-     *
-     * var initialize = _.once(createApplication);
-     * initialize();
-     * initialize();
-     * // `initialize` invokes `createApplication` once
-     */
-    function once(func) {
-      return before(2, func);
-    }
-
-    /**
-     * Creates a function that invokes `func` with `partial` arguments prepended
-     * to those provided to the new function. This method is like `_.bind` except
-     * it does **not** alter the `this` binding.
-     *
-     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
-     * builds, may be used as a placeholder for partially applied arguments.
-     *
-     * **Note:** This method does not set the "length" property of partially
-     * applied functions.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to partially apply arguments to.
-     * @param {...*} [partials] The arguments to be partially applied.
-     * @returns {Function} Returns the new partially applied function.
-     * @example
-     *
-     * var greet = function(greeting, name) {
-     *   return greeting + ' ' + name;
-     * };
-     *
-     * var sayHelloTo = _.partial(greet, 'hello');
-     * sayHelloTo('fred');
-     * // => 'hello fred'
-     *
-     * // using placeholders
-     * var greetFred = _.partial(greet, _, 'fred');
-     * greetFred('hi');
-     * // => 'hi fred'
-     */
-    var partial = createPartial(PARTIAL_FLAG);
-
-    /**
-     * This method is like `_.partial` except that partially applied arguments
-     * are appended to those provided to the new function.
-     *
-     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
-     * builds, may be used as a placeholder for partially applied arguments.
-     *
-     * **Note:** This method does not set the "length" property of partially
-     * applied functions.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to partially apply arguments to.
-     * @param {...*} [partials] The arguments to be partially applied.
-     * @returns {Function} Returns the new partially applied function.
-     * @example
-     *
-     * var greet = function(greeting, name) {
-     *   return greeting + ' ' + name;
-     * };
-     *
-     * var greetFred = _.partialRight(greet, 'fred');
-     * greetFred('hi');
-     * // => 'hi fred'
-     *
-     * // using placeholders
-     * var sayHelloTo = _.partialRight(greet, 'hello', _);
-     * sayHelloTo('fred');
-     * // => 'hello fred'
-     */
-    var partialRight = createPartial(PARTIAL_RIGHT_FLAG);
-
-    /**
-     * Creates a function that invokes `func` with arguments arranged according
-     * to the specified indexes where the argument value at the first index is
-     * provided as the first argument, the argument value at the second index is
-     * provided as the second argument, and so on.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to rearrange arguments for.
-     * @param {...(number|number[])} indexes The arranged argument indexes,
-     *  specified as individual indexes or arrays of indexes.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var rearged = _.rearg(function(a, b, c) {
-     *   return [a, b, c];
-     * }, 2, 0, 1);
-     *
-     * rearged('b', 'c', 'a')
-     * // => ['a', 'b', 'c']
-     *
-     * var map = _.rearg(_.map, [1, 0]);
-     * map(function(n) {
-     *   return n * 3;
-     * }, [1, 2, 3]);
-     * // => [3, 6, 9]
-     */
-    var rearg = restParam(function(func, indexes) {
-      return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes));
-    });
-
-    /**
-     * Creates a function that invokes `func` with the `this` binding of the
-     * created function and arguments from `start` and beyond provided as an array.
-     *
-     * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters).
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to apply a rest parameter to.
-     * @param {number} [start=func.length-1] The start position of the rest parameter.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var say = _.restParam(function(what, names) {
-     *   return what + ' ' + _.initial(names).join(', ') +
-     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
-     * });
-     *
-     * say('hello', 'fred', 'barney', 'pebbles');
-     * // => 'hello fred, barney, & pebbles'
-     */
-    function restParam(func, start) {
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);
-      return function() {
-        var args = arguments,
-            index = -1,
-            length = nativeMax(args.length - start, 0),
-            rest = Array(length);
-
-        while (++index < length) {
-          rest[index] = args[start + index];
-        }
-        switch (start) {
-          case 0: return func.call(this, rest);
-          case 1: return func.call(this, args[0], rest);
-          case 2: return func.call(this, args[0], args[1], rest);
-        }
-        var otherArgs = Array(start + 1);
-        index = -1;
-        while (++index < start) {
-          otherArgs[index] = args[index];
-        }
-        otherArgs[start] = rest;
-        return func.apply(this, otherArgs);
-      };
-    }
-
-    /**
-     * Creates a function that invokes `func` with the `this` binding of the created
-     * function and an array of arguments much like [`Function#apply`](https://es5.github.io/#x15.3.4.3).
-     *
-     * **Note:** This method is based on the [spread operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator).
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to spread arguments over.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var say = _.spread(function(who, what) {
-     *   return who + ' says ' + what;
-     * });
-     *
-     * say(['fred', 'hello']);
-     * // => 'fred says hello'
-     *
-     * // with a Promise
-     * var numbers = Promise.all([
-     *   Promise.resolve(40),
-     *   Promise.resolve(36)
-     * ]);
-     *
-     * numbers.then(_.spread(function(x, y) {
-     *   return x + y;
-     * }));
-     * // => a Promise of 76
-     */
-    function spread(func) {
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      return function(array) {
-        return func.apply(this, array);
-      };
-    }
-
-    /**
-     * Creates a throttled function that only invokes `func` at most once per
-     * every `wait` milliseconds. The throttled function comes with a `cancel`
-     * method to cancel delayed invocations. Provide an options object to indicate
-     * that `func` should be invoked on the leading and/or trailing edge of the
-     * `wait` timeout. Subsequent calls to the throttled function return the
-     * result of the last `func` call.
-     *
-     * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
-     * on the trailing edge of the timeout only if the the throttled function is
-     * invoked more than once during the `wait` timeout.
-     *
-     * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
-     * for details over the differences between `_.throttle` and `_.debounce`.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to throttle.
-     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
-     * @param {Object} [options] The options object.
-     * @param {boolean} [options.leading=true] Specify invoking on the leading
-     *  edge of the timeout.
-     * @param {boolean} [options.trailing=true] Specify invoking on the trailing
-     *  edge of the timeout.
-     * @returns {Function} Returns the new throttled function.
-     * @example
-     *
-     * // avoid excessively updating the position while scrolling
-     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
-     *
-     * // invoke `renewToken` when the click event is fired, but not more than once every 5 minutes
-     * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
-     *   'trailing': false
-     * }));
-     *
-     * // cancel a trailing throttled call
-     * jQuery(window).on('popstate', throttled.cancel);
-     */
-    function throttle(func, wait, options) {
-      var leading = true,
-          trailing = true;
-
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      if (options === false) {
-        leading = false;
-      } else if (isObject(options)) {
-        leading = 'leading' in options ? !!options.leading : leading;
-        trailing = 'trailing' in options ? !!options.trailing : trailing;
-      }
-      return debounce(func, wait, { 'leading': leading, 'maxWait': +wait, 'trailing': trailing });
-    }
-
-    /**
-     * Creates a function that provides `value` to the wrapper function as its
-     * first argument. Any additional arguments provided to the function are
-     * appended to those provided to the wrapper function. The wrapper is invoked
-     * with the `this` binding of the created function.
-     *
-     * @static
-     * @memberOf _
-     * @category Function
-     * @param {*} value The value to wrap.
-     * @param {Function} wrapper The wrapper function.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var p = _.wrap(_.escape, function(func, text) {
-     *   return '<p>' + func(text) + '</p>';
-     * });
-     *
-     * p('fred, barney, & pebbles');
-     * // => '<p>fred, barney, &amp; pebbles</p>'
-     */
-    function wrap(value, wrapper) {
-      wrapper = wrapper == null ? identity : wrapper;
-      return createWrapper(wrapper, PARTIAL_FLAG, undefined, [value], []);
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a clone of `value`. If `isDeep` is `true` nested objects are cloned,
-     * otherwise they are assigned by reference. If `customizer` is provided it is
-     * invoked to produce the cloned values. If `customizer` returns `undefined`
-     * cloning is handled by the method instead. The `customizer` is bound to
-     * `thisArg` and invoked with two argument; (value [, index|key, object]).
-     *
-     * **Note:** This method is loosely based on the
-     * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
-     * The enumerable properties of `arguments` objects and objects created by
-     * constructors other than `Object` are cloned to plain `Object` objects. An
-     * empty object is returned for uncloneable values such as functions, DOM nodes,
-     * Maps, Sets, and WeakMaps.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to clone.
-     * @param {boolean} [isDeep] Specify a deep clone.
-     * @param {Function} [customizer] The function to customize cloning values.
-     * @param {*} [thisArg] The `this` binding of `customizer`.
-     * @returns {*} Returns the cloned value.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney' },
-     *   { 'user': 'fred' }
-     * ];
-     *
-     * var shallow = _.clone(users);
-     * shallow[0] === users[0];
-     * // => true
-     *
-     * var deep = _.clone(users, true);
-     * deep[0] === users[0];
-     * // => false
-     *
-     * // using a customizer callback
-     * var el = _.clone(document.body, function(value) {
-     *   if (_.isElement(value)) {
-     *     return value.cloneNode(false);
-     *   }
-     * });
-     *
-     * el === document.body
-     * // => false
-     * el.nodeName
-     * // => BODY
-     * el.childNodes.length;
-     * // => 0
-     */
-    function clone(value, isDeep, customizer, thisArg) {
-      if (isDeep && typeof isDeep != 'boolean' && isIterateeCall(value, isDeep, customizer)) {
-        isDeep = false;
-      }
-      else if (typeof isDeep == 'function') {
-        thisArg = customizer;
-        customizer = isDeep;
-        isDeep = false;
-      }
-      return typeof customizer == 'function'
-        ? baseClone(value, isDeep, bindCallback(customizer, thisArg, 1))
-        : baseClone(value, isDeep);
-    }
-
-    /**
-     * Creates a deep clone of `value`. If `customizer` is provided it is invoked
-     * to produce the cloned values. If `customizer` returns `undefined` cloning
-     * is handled by the method instead. The `customizer` is bound to `thisArg`
-     * and invoked with two argument; (value [, index|key, object]).
-     *
-     * **Note:** This method is loosely based on the
-     * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
-     * The enumerable properties of `arguments` objects and objects created by
-     * constructors other than `Object` are cloned to plain `Object` objects. An
-     * empty object is returned for uncloneable values such as functions, DOM nodes,
-     * Maps, Sets, and WeakMaps.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to deep clone.
-     * @param {Function} [customizer] The function to customize cloning values.
-     * @param {*} [thisArg] The `this` binding of `customizer`.
-     * @returns {*} Returns the deep cloned value.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney' },
-     *   { 'user': 'fred' }
-     * ];
-     *
-     * var deep = _.cloneDeep(users);
-     * deep[0] === users[0];
-     * // => false
-     *
-     * // using a customizer callback
-     * var el = _.cloneDeep(document.body, function(value) {
-     *   if (_.isElement(value)) {
-     *     return value.cloneNode(true);
-     *   }
-     * });
-     *
-     * el === document.body
-     * // => false
-     * el.nodeName
-     * // => BODY
-     * el.childNodes.length;
-     * // => 20
-     */
-    function cloneDeep(value, customizer, thisArg) {
-      return typeof customizer == 'function'
-        ? baseClone(value, true, bindCallback(customizer, thisArg, 1))
-        : baseClone(value, true);
-    }
-
-    /**
-     * Checks if `value` is greater than `other`.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is greater than `other`, else `false`.
-     * @example
-     *
-     * _.gt(3, 1);
-     * // => true
-     *
-     * _.gt(3, 3);
-     * // => false
-     *
-     * _.gt(1, 3);
-     * // => false
-     */
-    function gt(value, other) {
-      return value > other;
-    }
-
-    /**
-     * Checks if `value` is greater than or equal to `other`.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is greater than or equal to `other`, else `false`.
-     * @example
-     *
-     * _.gte(3, 1);
-     * // => true
-     *
-     * _.gte(3, 3);
-     * // => true
-     *
-     * _.gte(1, 3);
-     * // => false
-     */
-    function gte(value, other) {
-      return value >= other;
-    }
-
-    /**
-     * Checks if `value` is classified as an `arguments` object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isArguments(function() { return arguments; }());
-     * // => true
-     *
-     * _.isArguments([1, 2, 3]);
-     * // => false
-     */
-    function isArguments(value) {
-      return isObjectLike(value) && isArrayLike(value) &&
-        hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');
-    }
-
-    /**
-     * Checks if `value` is classified as an `Array` object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isArray([1, 2, 3]);
-     * // => true
-     *
-     * _.isArray(function() { return arguments; }());
-     * // => false
-     */
-    var isArray = nativeIsArray || function(value) {
-      return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
-    };
-
-    /**
-     * Checks if `value` is classified as a boolean primitive or object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isBoolean(false);
-     * // => true
-     *
-     * _.isBoolean(null);
-     * // => false
-     */
-    function isBoolean(value) {
-      return value === true || value === false || (isObjectLike(value) && objToString.call(value) == boolTag);
-    }
-
-    /**
-     * Checks if `value` is classified as a `Date` object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isDate(new Date);
-     * // => true
-     *
-     * _.isDate('Mon April 23 2012');
-     * // => false
-     */
-    function isDate(value) {
-      return isObjectLike(value) && objToString.call(value) == dateTag;
-    }
-
-    /**
-     * Checks if `value` is a DOM element.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
-     * @example
-     *
-     * _.isElement(document.body);
-     * // => true
-     *
-     * _.isElement('<body>');
-     * // => false
-     */
-    function isElement(value) {
-      return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value);
-    }
-
-    /**
-     * Checks if `value` is empty. A value is considered empty unless it is an
-     * `arguments` object, array, string, or jQuery-like collection with a length
-     * greater than `0` or an object with own enumerable properties.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {Array|Object|string} value The value to inspect.
-     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
-     * @example
-     *
-     * _.isEmpty(null);
-     * // => true
-     *
-     * _.isEmpty(true);
-     * // => true
-     *
-     * _.isEmpty(1);
-     * // => true
-     *
-     * _.isEmpty([1, 2, 3]);
-     * // => false
-     *
-     * _.isEmpty({ 'a': 1 });
-     * // => false
-     */
-    function isEmpty(value) {
-      if (value == null) {
-        return true;
-      }
-      if (isArrayLike(value) && (isArray(value) || isString(value) || isArguments(value) ||
-          (isObjectLike(value) && isFunction(value.splice)))) {
-        return !value.length;
-      }
-      return !keys(value).length;
-    }
-
-    /**
-     * Performs a deep comparison between two values to determine if they are
-     * equivalent. If `customizer` is provided it is invoked to compare values.
-     * If `customizer` returns `undefined` comparisons are handled by the method
-     * instead. The `customizer` is bound to `thisArg` and invoked with three
-     * arguments: (value, other [, index|key]).
-     *
-     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
-     * numbers, `Object` objects, regexes, and strings. Objects are compared by
-     * their own, not inherited, enumerable properties. Functions and DOM nodes
-     * are **not** supported. Provide a customizer function to extend support
-     * for comparing other values.
-     *
-     * @static
-     * @memberOf _
-     * @alias eq
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @param {Function} [customizer] The function to customize value comparisons.
-     * @param {*} [thisArg] The `this` binding of `customizer`.
-     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
-     * @example
-     *
-     * var object = { 'user': 'fred' };
-     * var other = { 'user': 'fred' };
-     *
-     * object == other;
-     * // => false
-     *
-     * _.isEqual(object, other);
-     * // => true
-     *
-     * // using a customizer callback
-     * var array = ['hello', 'goodbye'];
-     * var other = ['hi', 'goodbye'];
-     *
-     * _.isEqual(array, other, function(value, other) {
-     *   if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) {
-     *     return true;
-     *   }
-     * });
-     * // => true
-     */
-    function isEqual(value, other, customizer, thisArg) {
-      customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
-      var result = customizer ? customizer(value, other) : undefined;
-      return  result === undefined ? baseIsEqual(value, other, customizer) : !!result;
-    }
-
-    /**
-     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
-     * `SyntaxError`, `TypeError`, or `URIError` object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
-     * @example
-     *
-     * _.isError(new Error);
-     * // => true
-     *
-     * _.isError(Error);
-     * // => false
-     */
-    function isError(value) {
-      return isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag;
-    }
-
-    /**
-     * Checks if `value` is a finite primitive number.
-     *
-     * **Note:** This method is based on [`Number.isFinite`](http://ecma-international.org/ecma-262/6.0/#sec-number.isfinite).
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
-     * @example
-     *
-     * _.isFinite(10);
-     * // => true
-     *
-     * _.isFinite('10');
-     * // => false
-     *
-     * _.isFinite(true);
-     * // => false
-     *
-     * _.isFinite(Object(10));
-     * // => false
-     *
-     * _.isFinite(Infinity);
-     * // => false
-     */
-    function isFinite(value) {
-      return typeof value == 'number' && nativeIsFinite(value);
-    }
-
-    /**
-     * Checks if `value` is classified as a `Function` object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isFunction(_);
-     * // => true
-     *
-     * _.isFunction(/abc/);
-     * // => false
-     */
-    function isFunction(value) {
-      // The use of `Object#toString` avoids issues with the `typeof` operator
-      // in older versions of Chrome and Safari which return 'function' for regexes
-      // and Safari 8 equivalents which return 'object' for typed array constructors.
-      return isObject(value) && objToString.call(value) == funcTag;
-    }
-
-    /**
-     * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
-     * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
-     * @example
-     *
-     * _.isObject({});
-     * // => true
-     *
-     * _.isObject([1, 2, 3]);
-     * // => true
-     *
-     * _.isObject(1);
-     * // => false
-     */
-    function isObject(value) {
-      // Avoid a V8 JIT bug in Chrome 19-20.
-      // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
-      var type = typeof value;
-      return !!value && (type == 'object' || type == 'function');
-    }
-
-    /**
-     * Performs a deep comparison between `object` and `source` to determine if
-     * `object` contains equivalent property values. If `customizer` is provided
-     * it is invoked to compare values. If `customizer` returns `undefined`
-     * comparisons are handled by the method instead. The `customizer` is bound
-     * to `thisArg` and invoked with three arguments: (value, other, index|key).
-     *
-     * **Note:** This method supports comparing properties of arrays, booleans,
-     * `Date` objects, numbers, `Object` objects, regexes, and strings. Functions
-     * and DOM nodes are **not** supported. Provide a customizer function to extend
-     * support for comparing other values.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {Object} object The object to inspect.
-     * @param {Object} source The object of property values to match.
-     * @param {Function} [customizer] The function to customize value comparisons.
-     * @param {*} [thisArg] The `this` binding of `customizer`.
-     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
-     * @example
-     *
-     * var object = { 'user': 'fred', 'age': 40 };
-     *
-     * _.isMatch(object, { 'age': 40 });
-     * // => true
-     *
-     * _.isMatch(object, { 'age': 36 });
-     * // => false
-     *
-     * // using a customizer callback
-     * var object = { 'greeting': 'hello' };
-     * var source = { 'greeting': 'hi' };
-     *
-     * _.isMatch(object, source, function(value, other) {
-     *   return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined;
-     * });
-     * // => true
-     */
-    function isMatch(object, source, customizer, thisArg) {
-      customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
-      return baseIsMatch(object, getMatchData(source), customizer);
-    }
-
-    /**
-     * Checks if `value` is `NaN`.
-     *
-     * **Note:** This method is not the same as [`isNaN`](https://es5.github.io/#x15.1.2.4)
-     * which returns `true` for `undefined` and other non-numeric values.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
-     * @example
-     *
-     * _.isNaN(NaN);
-     * // => true
-     *
-     * _.isNaN(new Number(NaN));
-     * // => true
-     *
-     * isNaN(undefined);
-     * // => true
-     *
-     * _.isNaN(undefined);
-     * // => false
-     */
-    function isNaN(value) {
-      // An `NaN` primitive is the only value that is not equal to itself.
-      // Perform the `toStringTag` check first to avoid errors with some host objects in IE.
-      return isNumber(value) && value != +value;
-    }
-
-    /**
-     * Checks if `value` is a native function.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
-     * @example
-     *
-     * _.isNative(Array.prototype.push);
-     * // => true
-     *
-     * _.isNative(_);
-     * // => false
-     */
-    function isNative(value) {
-      if (value == null) {
-        return false;
-      }
-      if (isFunction(value)) {
-        return reIsNative.test(fnToString.call(value));
-      }
-      return isObjectLike(value) && reIsHostCtor.test(value);
-    }
-
-    /**
-     * Checks if `value` is `null`.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
-     * @example
-     *
-     * _.isNull(null);
-     * // => true
-     *
-     * _.isNull(void 0);
-     * // => false
-     */
-    function isNull(value) {
-      return value === null;
-    }
-
-    /**
-     * Checks if `value` is classified as a `Number` primitive or object.
-     *
-     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified
-     * as numbers, use the `_.isFinite` method.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isNumber(8.4);
-     * // => true
-     *
-     * _.isNumber(NaN);
-     * // => true
-     *
-     * _.isNumber('8.4');
-     * // => false
-     */
-    function isNumber(value) {
-      return typeof value == 'number' || (isObjectLike(value) && objToString.call(value) == numberTag);
-    }
-
-    /**
-     * Checks if `value` is a plain object, that is, an object created by the
-     * `Object` constructor or one with a `[[Prototype]]` of `null`.
-     *
-     * **Note:** This method assumes objects created by the `Object` constructor
-     * have no inherited enumerable properties.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     * }
-     *
-     * _.isPlainObject(new Foo);
-     * // => false
-     *
-     * _.isPlainObject([1, 2, 3]);
-     * // => false
-     *
-     * _.isPlainObject({ 'x': 0, 'y': 0 });
-     * // => true
-     *
-     * _.isPlainObject(Object.create(null));
-     * // => true
-     */
-    function isPlainObject(value) {
-      var Ctor;
-
-      // Exit early for non `Object` objects.
-      if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||
-          (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {
-        return false;
-      }
-      // IE < 9 iterates inherited properties before own properties. If the first
-      // iterated property is an object's own property then there are no inherited
-      // enumerable properties.
-      var result;
-      // In most environments an object's own properties are iterated before
-      // its inherited properties. If the last iterated property is an object's
-      // own property then there are no inherited enumerable properties.
-      baseForIn(value, function(subValue, key) {
-        result = key;
-      });
-      return result === undefined || hasOwnProperty.call(value, result);
-    }
-
-    /**
-     * Checks if `value` is classified as a `RegExp` object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isRegExp(/abc/);
-     * // => true
-     *
-     * _.isRegExp('/abc/');
-     * // => false
-     */
-    function isRegExp(value) {
-      return isObject(value) && objToString.call(value) == regexpTag;
-    }
-
-    /**
-     * Checks if `value` is classified as a `String` primitive or object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isString('abc');
-     * // => true
-     *
-     * _.isString(1);
-     * // => false
-     */
-    function isString(value) {
-      return typeof value == 'string' || (isObjectLike(value) && objToString.call(value) == stringTag);
-    }
-
-    /**
-     * Checks if `value` is classified as a typed array.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
-     * @example
-     *
-     * _.isTypedArray(new Uint8Array);
-     * // => true
-     *
-     * _.isTypedArray([]);
-     * // => false
-     */
-    function isTypedArray(value) {
-      return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];
-    }
-
-    /**
-     * Checks if `value` is `undefined`.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
-     * @example
-     *
-     * _.isUndefined(void 0);
-     * // => true
-     *
-     * _.isUndefined(null);
-     * // => false
-     */
-    function isUndefined(value) {
-      return value === undefined;
-    }
-
-    /**
-     * Checks if `value` is less than `other`.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is less than `other`, else `false`.
-     * @example
-     *
-     * _.lt(1, 3);
-     * // => true
-     *
-     * _.lt(3, 3);
-     * // => false
-     *
-     * _.lt(3, 1);
-     * // => false
-     */
-    function lt(value, other) {
-      return value < other;
-    }
-
-    /**
-     * Checks if `value` is less than or equal to `other`.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is less than or equal to `other`, else `false`.
-     * @example
-     *
-     * _.lte(1, 3);
-     * // => true
-     *
-     * _.lte(3, 3);
-     * // => true
-     *
-     * _.lte(3, 1);
-     * // => false
-     */
-    function lte(value, other) {
-      return value <= other;
-    }
-
-    /**
-     * Converts `value` to an array.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {Array} Returns the converted array.
-     * @example
-     *
-     * (function() {
-     *   return _.toArray(arguments).slice(1);
-     * }(1, 2, 3));
-     * // => [2, 3]
-     */
-    function toArray(value) {
-      var length = value ? getLength(value) : 0;
-      if (!isLength(length)) {
-        return values(value);
-      }
-      if (!length) {
-        return [];
-      }
-      return arrayCopy(value);
-    }
-
-    /**
-     * Converts `value` to a plain object flattening inherited enumerable
-     * properties of `value` to own properties of the plain object.
-     *
-     * @static
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {Object} Returns the converted plain object.
-     * @example
-     *
-     * function Foo() {
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.assign({ 'a': 1 }, new Foo);
-     * // => { 'a': 1, 'b': 2 }
-     *
-     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
-     * // => { 'a': 1, 'b': 2, 'c': 3 }
-     */
-    function toPlainObject(value) {
-      return baseCopy(value, keysIn(value));
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Recursively merges own enumerable properties of the source object(s), that
-     * don't resolve to `undefined` into the destination object. Subsequent sources
-     * overwrite property assignments of previous sources. If `customizer` is
-     * provided it is invoked to produce the merged values of the destination and
-     * source properties. If `customizer` returns `undefined` merging is handled
-     * by the method instead. The `customizer` is bound to `thisArg` and invoked
-     * with five arguments: (objectValue, sourceValue, key, object, source).
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @param {Function} [customizer] The function to customize assigned values.
-     * @param {*} [thisArg] The `this` binding of `customizer`.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var users = {
-     *   'data': [{ 'user': 'barney' }, { 'user': 'fred' }]
-     * };
-     *
-     * var ages = {
-     *   'data': [{ 'age': 36 }, { 'age': 40 }]
-     * };
-     *
-     * _.merge(users, ages);
-     * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }
-     *
-     * // using a customizer callback
-     * var object = {
-     *   'fruits': ['apple'],
-     *   'vegetables': ['beet']
-     * };
-     *
-     * var other = {
-     *   'fruits': ['banana'],
-     *   'vegetables': ['carrot']
-     * };
-     *
-     * _.merge(object, other, function(a, b) {
-     *   if (_.isArray(a)) {
-     *     return a.concat(b);
-     *   }
-     * });
-     * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
-     */
-    var merge = createAssigner(baseMerge);
-
-    /**
-     * Assigns own enumerable properties of source object(s) to the destination
-     * object. Subsequent sources overwrite property assignments of previous sources.
-     * If `customizer` is provided it is invoked to produce the assigned values.
-     * The `customizer` is bound to `thisArg` and invoked with five arguments:
-     * (objectValue, sourceValue, key, object, source).
-     *
-     * **Note:** This method mutates `object` and is based on
-     * [`Object.assign`](http://ecma-international.org/ecma-262/6.0/#sec-object.assign).
-     *
-     * @static
-     * @memberOf _
-     * @alias extend
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @param {Function} [customizer] The function to customize assigned values.
-     * @param {*} [thisArg] The `this` binding of `customizer`.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' });
-     * // => { 'user': 'fred', 'age': 40 }
-     *
-     * // using a customizer callback
-     * var defaults = _.partialRight(_.assign, function(value, other) {
-     *   return _.isUndefined(value) ? other : value;
-     * });
-     *
-     * defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
-     * // => { 'user': 'barney', 'age': 36 }
-     */
-    var assign = createAssigner(function(object, source, customizer) {
-      return customizer
-        ? assignWith(object, source, customizer)
-        : baseAssign(object, source);
-    });
-
-    /**
-     * Creates an object that inherits from the given `prototype` object. If a
-     * `properties` object is provided its own enumerable properties are assigned
-     * to the created object.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} prototype The object to inherit from.
-     * @param {Object} [properties] The properties to assign to the object.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * function Shape() {
-     *   this.x = 0;
-     *   this.y = 0;
-     * }
-     *
-     * function Circle() {
-     *   Shape.call(this);
-     * }
-     *
-     * Circle.prototype = _.create(Shape.prototype, {
-     *   'constructor': Circle
-     * });
-     *
-     * var circle = new Circle;
-     * circle instanceof Circle;
-     * // => true
-     *
-     * circle instanceof Shape;
-     * // => true
-     */
-    function create(prototype, properties, guard) {
-      var result = baseCreate(prototype);
-      if (guard && isIterateeCall(prototype, properties, guard)) {
-        properties = undefined;
-      }
-      return properties ? baseAssign(result, properties) : result;
-    }
-
-    /**
-     * Assigns own enumerable properties of source object(s) to the destination
-     * object for all destination properties that resolve to `undefined`. Once a
-     * property is set, additional values of the same property are ignored.
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
-     * // => { 'user': 'barney', 'age': 36 }
-     */
-    var defaults = createDefaults(assign, assignDefaults);
-
-    /**
-     * This method is like `_.defaults` except that it recursively assigns
-     * default properties.
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } });
-     * // => { 'user': { 'name': 'barney', 'age': 36 } }
-     *
-     */
-    var defaultsDeep = createDefaults(merge, mergeDefaults);
-
-    /**
-     * This method is like `_.find` except that it returns the key of the first
-     * element `predicate` returns truthy for instead of the element itself.
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to search.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {string|undefined} Returns the key of the matched element, else `undefined`.
-     * @example
-     *
-     * var users = {
-     *   'barney':  { 'age': 36, 'active': true },
-     *   'fred':    { 'age': 40, 'active': false },
-     *   'pebbles': { 'age': 1,  'active': true }
-     * };
-     *
-     * _.findKey(users, function(chr) {
-     *   return chr.age < 40;
-     * });
-     * // => 'barney' (iteration order is not guaranteed)
-     *
-     * // using the `_.matches` callback shorthand
-     * _.findKey(users, { 'age': 1, 'active': true });
-     * // => 'pebbles'
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.findKey(users, 'active', false);
-     * // => 'fred'
-     *
-     * // using the `_.property` callback shorthand
-     * _.findKey(users, 'active');
-     * // => 'barney'
-     */
-    var findKey = createFindKey(baseForOwn);
-
-    /**
-     * This method is like `_.findKey` except that it iterates over elements of
-     * a collection in the opposite order.
-     *
-     * If a property name is provided for `predicate` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `predicate` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to search.
-     * @param {Function|Object|string} [predicate=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {string|undefined} Returns the key of the matched element, else `undefined`.
-     * @example
-     *
-     * var users = {
-     *   'barney':  { 'age': 36, 'active': true },
-     *   'fred':    { 'age': 40, 'active': false },
-     *   'pebbles': { 'age': 1,  'active': true }
-     * };
-     *
-     * _.findLastKey(users, function(chr) {
-     *   return chr.age < 40;
-     * });
-     * // => returns `pebbles` assuming `_.findKey` returns `barney`
-     *
-     * // using the `_.matches` callback shorthand
-     * _.findLastKey(users, { 'age': 36, 'active': true });
-     * // => 'barney'
-     *
-     * // using the `_.matchesProperty` callback shorthand
-     * _.findLastKey(users, 'active', false);
-     * // => 'fred'
-     *
-     * // using the `_.property` callback shorthand
-     * _.findLastKey(users, 'active');
-     * // => 'pebbles'
-     */
-    var findLastKey = createFindKey(baseForOwnRight);
-
-    /**
-     * Iterates over own and inherited enumerable properties of an object invoking
-     * `iteratee` for each property. The `iteratee` is bound to `thisArg` and invoked
-     * with three arguments: (value, key, object). Iteratee functions may exit
-     * iteration early by explicitly returning `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.forIn(new Foo, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => logs 'a', 'b', and 'c' (iteration order is not guaranteed)
-     */
-    var forIn = createForIn(baseFor);
-
-    /**
-     * This method is like `_.forIn` except that it iterates over properties of
-     * `object` in the opposite order.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.forInRight(new Foo, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => logs 'c', 'b', and 'a' assuming `_.forIn ` logs 'a', 'b', and 'c'
-     */
-    var forInRight = createForIn(baseForRight);
-
-    /**
-     * Iterates over own enumerable properties of an object invoking `iteratee`
-     * for each property. The `iteratee` is bound to `thisArg` and invoked with
-     * three arguments: (value, key, object). Iteratee functions may exit iteration
-     * early by explicitly returning `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.forOwn(new Foo, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => logs 'a' and 'b' (iteration order is not guaranteed)
-     */
-    var forOwn = createForOwn(baseForOwn);
-
-    /**
-     * This method is like `_.forOwn` except that it iterates over properties of
-     * `object` in the opposite order.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.forOwnRight(new Foo, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => logs 'b' and 'a' assuming `_.forOwn` logs 'a' and 'b'
-     */
-    var forOwnRight = createForOwn(baseForOwnRight);
-
-    /**
-     * Creates an array of function property names from all enumerable properties,
-     * own and inherited, of `object`.
-     *
-     * @static
-     * @memberOf _
-     * @alias methods
-     * @category Object
-     * @param {Object} object The object to inspect.
-     * @returns {Array} Returns the new array of property names.
-     * @example
-     *
-     * _.functions(_);
-     * // => ['after', 'ary', 'assign', ...]
-     */
-    function functions(object) {
-      return baseFunctions(object, keysIn(object));
-    }
-
-    /**
-     * Gets the property value at `path` of `object`. If the resolved value is
-     * `undefined` the `defaultValue` is used in its place.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path of the property to get.
-     * @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
-     * @returns {*} Returns the resolved value.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
-     *
-     * _.get(object, 'a[0].b.c');
-     * // => 3
-     *
-     * _.get(object, ['a', '0', 'b', 'c']);
-     * // => 3
-     *
-     * _.get(object, 'a.b.c', 'default');
-     * // => 'default'
-     */
-    function get(object, path, defaultValue) {
-      var result = object == null ? undefined : baseGet(object, toPath(path), path + '');
-      return result === undefined ? defaultValue : result;
-    }
-
-    /**
-     * Checks if `path` is a direct property.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path to check.
-     * @returns {boolean} Returns `true` if `path` is a direct property, else `false`.
-     * @example
-     *
-     * var object = { 'a': { 'b': { 'c': 3 } } };
-     *
-     * _.has(object, 'a');
-     * // => true
-     *
-     * _.has(object, 'a.b.c');
-     * // => true
-     *
-     * _.has(object, ['a', 'b', 'c']);
-     * // => true
-     */
-    function has(object, path) {
-      if (object == null) {
-        return false;
-      }
-      var result = hasOwnProperty.call(object, path);
-      if (!result && !isKey(path)) {
-        path = toPath(path);
-        object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
-        if (object == null) {
-          return false;
-        }
-        path = last(path);
-        result = hasOwnProperty.call(object, path);
-      }
-      return result || (isLength(object.length) && isIndex(path, object.length) &&
-        (isArray(object) || isArguments(object)));
-    }
-
-    /**
-     * Creates an object composed of the inverted keys and values of `object`.
-     * If `object` contains duplicate values, subsequent values overwrite property
-     * assignments of previous values unless `multiValue` is `true`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to invert.
-     * @param {boolean} [multiValue] Allow multiple values per key.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Object} Returns the new inverted object.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': 2, 'c': 1 };
-     *
-     * _.invert(object);
-     * // => { '1': 'c', '2': 'b' }
-     *
-     * // with `multiValue`
-     * _.invert(object, true);
-     * // => { '1': ['a', 'c'], '2': ['b'] }
-     */
-    function invert(object, multiValue, guard) {
-      if (guard && isIterateeCall(object, multiValue, guard)) {
-        multiValue = undefined;
-      }
-      var index = -1,
-          props = keys(object),
-          length = props.length,
-          result = {};
-
-      while (++index < length) {
-        var key = props[index],
-            value = object[key];
-
-        if (multiValue) {
-          if (hasOwnProperty.call(result, value)) {
-            result[value].push(key);
-          } else {
-            result[value] = [key];
-          }
-        }
-        else {
-          result[value] = key;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Creates an array of the own enumerable property names of `object`.
-     *
-     * **Note:** Non-object values are coerced to objects. See the
-     * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
-     * for more details.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.keys(new Foo);
-     * // => ['a', 'b'] (iteration order is not guaranteed)
-     *
-     * _.keys('hi');
-     * // => ['0', '1']
-     */
-    var keys = !nativeKeys ? shimKeys : function(object) {
-      var Ctor = object == null ? undefined : object.constructor;
-      if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
-          (typeof object != 'function' && isArrayLike(object))) {
-        return shimKeys(object);
-      }
-      return isObject(object) ? nativeKeys(object) : [];
-    };
-
-    /**
-     * Creates an array of the own and inherited enumerable property names of `object`.
-     *
-     * **Note:** Non-object values are coerced to objects.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.keysIn(new Foo);
-     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
-     */
-    function keysIn(object) {
-      if (object == null) {
-        return [];
-      }
-      if (!isObject(object)) {
-        object = Object(object);
-      }
-      var length = object.length;
-      length = (length && isLength(length) &&
-        (isArray(object) || isArguments(object)) && length) || 0;
-
-      var Ctor = object.constructor,
-          index = -1,
-          isProto = typeof Ctor == 'function' && Ctor.prototype === object,
-          result = Array(length),
-          skipIndexes = length > 0;
-
-      while (++index < length) {
-        result[index] = (index + '');
-      }
-      for (var key in object) {
-        if (!(skipIndexes && isIndex(key, length)) &&
-            !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
-          result.push(key);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The opposite of `_.mapValues`; this method creates an object with the
-     * same values as `object` and keys generated by running each own enumerable
-     * property of `object` through `iteratee`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns the new mapped object.
-     * @example
-     *
-     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
-     *   return key + value;
-     * });
-     * // => { 'a1': 1, 'b2': 2 }
-     */
-    var mapKeys = createObjectMapper(true);
-
-    /**
-     * Creates an object with the same keys as `object` and values generated by
-     * running each own enumerable property of `object` through `iteratee`. The
-     * iteratee function is bound to `thisArg` and invoked with three arguments:
-     * (value, key, object).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function|Object|string} [iteratee=_.identity] The function invoked
-     *  per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Object} Returns the new mapped object.
-     * @example
-     *
-     * _.mapValues({ 'a': 1, 'b': 2 }, function(n) {
-     *   return n * 3;
-     * });
-     * // => { 'a': 3, 'b': 6 }
-     *
-     * var users = {
-     *   'fred':    { 'user': 'fred',    'age': 40 },
-     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
-     * };
-     *
-     * // using the `_.property` callback shorthand
-     * _.mapValues(users, 'age');
-     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
-     */
-    var mapValues = createObjectMapper();
-
-    /**
-     * The opposite of `_.pick`; this method creates an object composed of the
-     * own and inherited enumerable properties of `object` that are not omitted.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The source object.
-     * @param {Function|...(string|string[])} [predicate] The function invoked per
-     *  iteration or property names to omit, specified as individual property
-     *  names or arrays of property names.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * var object = { 'user': 'fred', 'age': 40 };
-     *
-     * _.omit(object, 'age');
-     * // => { 'user': 'fred' }
-     *
-     * _.omit(object, _.isNumber);
-     * // => { 'user': 'fred' }
-     */
-    var omit = restParam(function(object, props) {
-      if (object == null) {
-        return {};
-      }
-      if (typeof props[0] != 'function') {
-        var props = arrayMap(baseFlatten(props), String);
-        return pickByArray(object, baseDifference(keysIn(object), props));
-      }
-      var predicate = bindCallback(props[0], props[1], 3);
-      return pickByCallback(object, function(value, key, object) {
-        return !predicate(value, key, object);
-      });
-    });
-
-    /**
-     * Creates a two dimensional array of the key-value pairs for `object`,
-     * e.g. `[[key1, value1], [key2, value2]]`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the new array of key-value pairs.
-     * @example
-     *
-     * _.pairs({ 'barney': 36, 'fred': 40 });
-     * // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed)
-     */
-    function pairs(object) {
-      object = toObject(object);
-
-      var index = -1,
-          props = keys(object),
-          length = props.length,
-          result = Array(length);
-
-      while (++index < length) {
-        var key = props[index];
-        result[index] = [key, object[key]];
-      }
-      return result;
-    }
-
-    /**
-     * Creates an object composed of the picked `object` properties. Property
-     * names may be specified as individual arguments or as arrays of property
-     * names. If `predicate` is provided it is invoked for each property of `object`
-     * picking the properties `predicate` returns truthy for. The predicate is
-     * bound to `thisArg` and invoked with three arguments: (value, key, object).
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The source object.
-     * @param {Function|...(string|string[])} [predicate] The function invoked per
-     *  iteration or property names to pick, specified as individual property
-     *  names or arrays of property names.
-     * @param {*} [thisArg] The `this` binding of `predicate`.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * var object = { 'user': 'fred', 'age': 40 };
-     *
-     * _.pick(object, 'user');
-     * // => { 'user': 'fred' }
-     *
-     * _.pick(object, _.isString);
-     * // => { 'user': 'fred' }
-     */
-    var pick = restParam(function(object, props) {
-      if (object == null) {
-        return {};
-      }
-      return typeof props[0] == 'function'
-        ? pickByCallback(object, bindCallback(props[0], props[1], 3))
-        : pickByArray(object, baseFlatten(props));
-    });
-
-    /**
-     * This method is like `_.get` except that if the resolved value is a function
-     * it is invoked with the `this` binding of its parent object and its result
-     * is returned.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path of the property to resolve.
-     * @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
-     * @returns {*} Returns the resolved value.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
-     *
-     * _.result(object, 'a[0].b.c1');
-     * // => 3
-     *
-     * _.result(object, 'a[0].b.c2');
-     * // => 4
-     *
-     * _.result(object, 'a.b.c', 'default');
-     * // => 'default'
-     *
-     * _.result(object, 'a.b.c', _.constant('default'));
-     * // => 'default'
-     */
-    function result(object, path, defaultValue) {
-      var result = object == null ? undefined : object[path];
-      if (result === undefined) {
-        if (object != null && !isKey(path, object)) {
-          path = toPath(path);
-          object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
-          result = object == null ? undefined : object[last(path)];
-        }
-        result = result === undefined ? defaultValue : result;
-      }
-      return isFunction(result) ? result.call(object) : result;
-    }
-
-    /**
-     * Sets the property value of `path` on `object`. If a portion of `path`
-     * does not exist it is created.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to augment.
-     * @param {Array|string} path The path of the property to set.
-     * @param {*} value The value to set.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
-     *
-     * _.set(object, 'a[0].b.c', 4);
-     * console.log(object.a[0].b.c);
-     * // => 4
-     *
-     * _.set(object, 'x[0].y.z', 5);
-     * console.log(object.x[0].y.z);
-     * // => 5
-     */
-    function set(object, path, value) {
-      if (object == null) {
-        return object;
-      }
-      var pathKey = (path + '');
-      path = (object[pathKey] != null || isKey(path, object)) ? [pathKey] : toPath(path);
-
-      var index = -1,
-          length = path.length,
-          lastIndex = length - 1,
-          nested = object;
-
-      while (nested != null && ++index < length) {
-        var key = path[index];
-        if (isObject(nested)) {
-          if (index == lastIndex) {
-            nested[key] = value;
-          } else if (nested[key] == null) {
-            nested[key] = isIndex(path[index + 1]) ? [] : {};
-          }
-        }
-        nested = nested[key];
-      }
-      return object;
-    }
-
-    /**
-     * An alternative to `_.reduce`; this method transforms `object` to a new
-     * `accumulator` object which is the result of running each of its own enumerable
-     * properties through `iteratee`, with each invocation potentially mutating
-     * the `accumulator` object. The `iteratee` is bound to `thisArg` and invoked
-     * with four arguments: (accumulator, value, key, object). Iteratee functions
-     * may exit iteration early by explicitly returning `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Array|Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [accumulator] The custom accumulator value.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {*} Returns the accumulated value.
-     * @example
-     *
-     * _.transform([2, 3, 4], function(result, n) {
-     *   result.push(n *= n);
-     *   return n % 2 == 0;
-     * });
-     * // => [4, 9]
-     *
-     * _.transform({ 'a': 1, 'b': 2 }, function(result, n, key) {
-     *   result[key] = n * 3;
-     * });
-     * // => { 'a': 3, 'b': 6 }
-     */
-    function transform(object, iteratee, accumulator, thisArg) {
-      var isArr = isArray(object) || isTypedArray(object);
-      iteratee = getCallback(iteratee, thisArg, 4);
-
-      if (accumulator == null) {
-        if (isArr || isObject(object)) {
-          var Ctor = object.constructor;
-          if (isArr) {
-            accumulator = isArray(object) ? new Ctor : [];
-          } else {
-            accumulator = baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined);
-          }
-        } else {
-          accumulator = {};
-        }
-      }
-      (isArr ? arrayEach : baseForOwn)(object, function(value, index, object) {
-        return iteratee(accumulator, value, index, object);
-      });
-      return accumulator;
-    }
-
-    /**
-     * Creates an array of the own enumerable property values of `object`.
-     *
-     * **Note:** Non-object values are coerced to objects.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property values.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.values(new Foo);
-     * // => [1, 2] (iteration order is not guaranteed)
-     *
-     * _.values('hi');
-     * // => ['h', 'i']
-     */
-    function values(object) {
-      return baseValues(object, keys(object));
-    }
-
-    /**
-     * Creates an array of the own and inherited enumerable property values
-     * of `object`.
-     *
-     * **Note:** Non-object values are coerced to objects.
-     *
-     * @static
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property values.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.valuesIn(new Foo);
-     * // => [1, 2, 3] (iteration order is not guaranteed)
-     */
-    function valuesIn(object) {
-      return baseValues(object, keysIn(object));
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Checks if `n` is between `start` and up to but not including, `end`. If
-     * `end` is not specified it is set to `start` with `start` then set to `0`.
-     *
-     * @static
-     * @memberOf _
-     * @category Number
-     * @param {number} n The number to check.
-     * @param {number} [start=0] The start of the range.
-     * @param {number} end The end of the range.
-     * @returns {boolean} Returns `true` if `n` is in the range, else `false`.
-     * @example
-     *
-     * _.inRange(3, 2, 4);
-     * // => true
-     *
-     * _.inRange(4, 8);
-     * // => true
-     *
-     * _.inRange(4, 2);
-     * // => false
-     *
-     * _.inRange(2, 2);
-     * // => false
-     *
-     * _.inRange(1.2, 2);
-     * // => true
-     *
-     * _.inRange(5.2, 4);
-     * // => false
-     */
-    function inRange(value, start, end) {
-      start = +start || 0;
-      if (end === undefined) {
-        end = start;
-        start = 0;
-      } else {
-        end = +end || 0;
-      }
-      return value >= nativeMin(start, end) && value < nativeMax(start, end);
-    }
-
-    /**
-     * Produces a random number between `min` and `max` (inclusive). If only one
-     * argument is provided a number between `0` and the given number is returned.
-     * If `floating` is `true`, or either `min` or `max` are floats, a floating-point
-     * number is returned instead of an integer.
-     *
-     * @static
-     * @memberOf _
-     * @category Number
-     * @param {number} [min=0] The minimum possible value.
-     * @param {number} [max=1] The maximum possible value.
-     * @param {boolean} [floating] Specify returning a floating-point number.
-     * @returns {number} Returns the random number.
-     * @example
-     *
-     * _.random(0, 5);
-     * // => an integer between 0 and 5
-     *
-     * _.random(5);
-     * // => also an integer between 0 and 5
-     *
-     * _.random(5, true);
-     * // => a floating-point number between 0 and 5
-     *
-     * _.random(1.2, 5.2);
-     * // => a floating-point number between 1.2 and 5.2
-     */
-    function random(min, max, floating) {
-      if (floating && isIterateeCall(min, max, floating)) {
-        max = floating = undefined;
-      }
-      var noMin = min == null,
-          noMax = max == null;
-
-      if (floating == null) {
-        if (noMax && typeof min == 'boolean') {
-          floating = min;
-          min = 1;
-        }
-        else if (typeof max == 'boolean') {
-          floating = max;
-          noMax = true;
-        }
-      }
-      if (noMin && noMax) {
-        max = 1;
-        noMax = false;
-      }
-      min = +min || 0;
-      if (noMax) {
-        max = min;
-        min = 0;
-      } else {
-        max = +max || 0;
-      }
-      if (floating || min % 1 || max % 1) {
-        var rand = nativeRandom();
-        return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand + '').length - 1)))), max);
-      }
-      return baseRandom(min, max);
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the camel cased string.
-     * @example
-     *
-     * _.camelCase('Foo Bar');
-     * // => 'fooBar'
-     *
-     * _.camelCase('--foo-bar');
-     * // => 'fooBar'
-     *
-     * _.camelCase('__foo_bar__');
-     * // => 'fooBar'
-     */
-    var camelCase = createCompounder(function(result, word, index) {
-      word = word.toLowerCase();
-      return result + (index ? (word.charAt(0).toUpperCase() + word.slice(1)) : word);
-    });
-
-    /**
-     * Capitalizes the first character of `string`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to capitalize.
-     * @returns {string} Returns the capitalized string.
-     * @example
-     *
-     * _.capitalize('fred');
-     * // => 'Fred'
-     */
-    function capitalize(string) {
-      string = baseToString(string);
-      return string && (string.charAt(0).toUpperCase() + string.slice(1));
-    }
-
-    /**
-     * Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
-     * to basic latin letters and removing [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to deburr.
-     * @returns {string} Returns the deburred string.
-     * @example
-     *
-     * _.deburr('déjà vu');
-     * // => 'deja vu'
-     */
-    function deburr(string) {
-      string = baseToString(string);
-      return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, '');
-    }
-
-    /**
-     * Checks if `string` ends with the given target string.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to search.
-     * @param {string} [target] The string to search for.
-     * @param {number} [position=string.length] The position to search from.
-     * @returns {boolean} Returns `true` if `string` ends with `target`, else `false`.
-     * @example
-     *
-     * _.endsWith('abc', 'c');
-     * // => true
-     *
-     * _.endsWith('abc', 'b');
-     * // => false
-     *
-     * _.endsWith('abc', 'b', 2);
-     * // => true
-     */
-    function endsWith(string, target, position) {
-      string = baseToString(string);
-      target = (target + '');
-
-      var length = string.length;
-      position = position === undefined
-        ? length
-        : nativeMin(position < 0 ? 0 : (+position || 0), length);
-
-      position -= target.length;
-      return position >= 0 && string.indexOf(target, position) == position;
-    }
-
-    /**
-     * Converts the characters "&", "<", ">", '"', "'", and "\`", in `string` to
-     * their corresponding HTML entities.
-     *
-     * **Note:** No other characters are escaped. To escape additional characters
-     * use a third-party library like [_he_](https://mths.be/he).
-     *
-     * Though the ">" character is escaped for symmetry, characters like
-     * ">" and "/" don't need escaping in HTML and have no special meaning
-     * unless they're part of a tag or unquoted attribute value.
-     * See [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
-     * (under "semi-related fun fact") for more details.
-     *
-     * Backticks are escaped because in Internet Explorer < 9, they can break out
-     * of attribute values or HTML comments. See [#59](https://html5sec.org/#59),
-     * [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and
-     * [#133](https://html5sec.org/#133) of the [HTML5 Security Cheatsheet](https://html5sec.org/)
-     * for more details.
-     *
-     * When working with HTML you should always [quote attribute values](http://wonko.com/post/html-escaping)
-     * to reduce XSS vectors.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to escape.
-     * @returns {string} Returns the escaped string.
-     * @example
-     *
-     * _.escape('fred, barney, & pebbles');
-     * // => 'fred, barney, &amp; pebbles'
-     */
-    function escape(string) {
-      // Reset `lastIndex` because in IE < 9 `String#replace` does not.
-      string = baseToString(string);
-      return (string && reHasUnescapedHtml.test(string))
-        ? string.replace(reUnescapedHtml, escapeHtmlChar)
-        : string;
-    }
-
-    /**
-     * Escapes the `RegExp` special characters "\", "/", "^", "$", ".", "|", "?",
-     * "*", "+", "(", ")", "[", "]", "{" and "}" in `string`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to escape.
-     * @returns {string} Returns the escaped string.
-     * @example
-     *
-     * _.escapeRegExp('[lodash](https://lodash.com/)');
-     * // => '\[lodash\]\(https:\/\/lodash\.com\/\)'
-     */
-    function escapeRegExp(string) {
-      string = baseToString(string);
-      return (string && reHasRegExpChars.test(string))
-        ? string.replace(reRegExpChars, escapeRegExpChar)
-        : (string || '(?:)');
-    }
-
-    /**
-     * Converts `string` to [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the kebab cased string.
-     * @example
-     *
-     * _.kebabCase('Foo Bar');
-     * // => 'foo-bar'
-     *
-     * _.kebabCase('fooBar');
-     * // => 'foo-bar'
-     *
-     * _.kebabCase('__foo_bar__');
-     * // => 'foo-bar'
-     */
-    var kebabCase = createCompounder(function(result, word, index) {
-      return result + (index ? '-' : '') + word.toLowerCase();
-    });
-
-    /**
-     * Pads `string` on the left and right sides if it's shorter than `length`.
-     * Padding characters are truncated if they can't be evenly divided by `length`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to pad.
-     * @param {number} [length=0] The padding length.
-     * @param {string} [chars=' '] The string used as padding.
-     * @returns {string} Returns the padded string.
-     * @example
-     *
-     * _.pad('abc', 8);
-     * // => '  abc   '
-     *
-     * _.pad('abc', 8, '_-');
-     * // => '_-abc_-_'
-     *
-     * _.pad('abc', 3);
-     * // => 'abc'
-     */
-    function pad(string, length, chars) {
-      string = baseToString(string);
-      length = +length;
-
-      var strLength = string.length;
-      if (strLength >= length || !nativeIsFinite(length)) {
-        return string;
-      }
-      var mid = (length - strLength) / 2,
-          leftLength = nativeFloor(mid),
-          rightLength = nativeCeil(mid);
-
-      chars = createPadding('', rightLength, chars);
-      return chars.slice(0, leftLength) + string + chars;
-    }
-
-    /**
-     * Pads `string` on the left side if it's shorter than `length`. Padding
-     * characters are truncated if they exceed `length`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to pad.
-     * @param {number} [length=0] The padding length.
-     * @param {string} [chars=' '] The string used as padding.
-     * @returns {string} Returns the padded string.
-     * @example
-     *
-     * _.padLeft('abc', 6);
-     * // => '   abc'
-     *
-     * _.padLeft('abc', 6, '_-');
-     * // => '_-_abc'
-     *
-     * _.padLeft('abc', 3);
-     * // => 'abc'
-     */
-    var padLeft = createPadDir();
-
-    /**
-     * Pads `string` on the right side if it's shorter than `length`. Padding
-     * characters are truncated if they exceed `length`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to pad.
-     * @param {number} [length=0] The padding length.
-     * @param {string} [chars=' '] The string used as padding.
-     * @returns {string} Returns the padded string.
-     * @example
-     *
-     * _.padRight('abc', 6);
-     * // => 'abc   '
-     *
-     * _.padRight('abc', 6, '_-');
-     * // => 'abc_-_'
-     *
-     * _.padRight('abc', 3);
-     * // => 'abc'
-     */
-    var padRight = createPadDir(true);
-
-    /**
-     * Converts `string` to an integer of the specified radix. If `radix` is
-     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a hexadecimal,
-     * in which case a `radix` of `16` is used.
-     *
-     * **Note:** This method aligns with the [ES5 implementation](https://es5.github.io/#E)
-     * of `parseInt`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} string The string to convert.
-     * @param {number} [radix] The radix to interpret `value` by.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {number} Returns the converted integer.
-     * @example
-     *
-     * _.parseInt('08');
-     * // => 8
-     *
-     * _.map(['6', '08', '10'], _.parseInt);
-     * // => [6, 8, 10]
-     */
-    function parseInt(string, radix, guard) {
-      // Firefox < 21 and Opera < 15 follow ES3 for `parseInt`.
-      // Chrome fails to trim leading <BOM> whitespace characters.
-      // See https://code.google.com/p/v8/issues/detail?id=3109 for more details.
-      if (guard ? isIterateeCall(string, radix, guard) : radix == null) {
-        radix = 0;
-      } else if (radix) {
-        radix = +radix;
-      }
-      string = trim(string);
-      return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10));
-    }
-
-    /**
-     * Repeats the given string `n` times.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to repeat.
-     * @param {number} [n=0] The number of times to repeat the string.
-     * @returns {string} Returns the repeated string.
-     * @example
-     *
-     * _.repeat('*', 3);
-     * // => '***'
-     *
-     * _.repeat('abc', 2);
-     * // => 'abcabc'
-     *
-     * _.repeat('abc', 0);
-     * // => ''
-     */
-    function repeat(string, n) {
-      var result = '';
-      string = baseToString(string);
-      n = +n;
-      if (n < 1 || !string || !nativeIsFinite(n)) {
-        return result;
-      }
-      // Leverage the exponentiation by squaring algorithm for a faster repeat.
-      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
-      do {
-        if (n % 2) {
-          result += string;
-        }
-        n = nativeFloor(n / 2);
-        string += string;
-      } while (n);
-
-      return result;
-    }
-
-    /**
-     * Converts `string` to [snake case](https://en.wikipedia.org/wiki/Snake_case).
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the snake cased string.
-     * @example
-     *
-     * _.snakeCase('Foo Bar');
-     * // => 'foo_bar'
-     *
-     * _.snakeCase('fooBar');
-     * // => 'foo_bar'
-     *
-     * _.snakeCase('--foo-bar');
-     * // => 'foo_bar'
-     */
-    var snakeCase = createCompounder(function(result, word, index) {
-      return result + (index ? '_' : '') + word.toLowerCase();
-    });
-
-    /**
-     * Converts `string` to [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the start cased string.
-     * @example
-     *
-     * _.startCase('--foo-bar');
-     * // => 'Foo Bar'
-     *
-     * _.startCase('fooBar');
-     * // => 'Foo Bar'
-     *
-     * _.startCase('__foo_bar__');
-     * // => 'Foo Bar'
-     */
-    var startCase = createCompounder(function(result, word, index) {
-      return result + (index ? ' ' : '') + (word.charAt(0).toUpperCase() + word.slice(1));
-    });
-
-    /**
-     * Checks if `string` starts with the given target string.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to search.
-     * @param {string} [target] The string to search for.
-     * @param {number} [position=0] The position to search from.
-     * @returns {boolean} Returns `true` if `string` starts with `target`, else `false`.
-     * @example
-     *
-     * _.startsWith('abc', 'a');
-     * // => true
-     *
-     * _.startsWith('abc', 'b');
-     * // => false
-     *
-     * _.startsWith('abc', 'b', 1);
-     * // => true
-     */
-    function startsWith(string, target, position) {
-      string = baseToString(string);
-      position = position == null
-        ? 0
-        : nativeMin(position < 0 ? 0 : (+position || 0), string.length);
-
-      return string.lastIndexOf(target, position) == position;
-    }
-
-    /**
-     * Creates a compiled template function that can interpolate data properties
-     * in "interpolate" delimiters, HTML-escape interpolated data properties in
-     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
-     * properties may be accessed as free variables in the template. If a setting
-     * object is provided it takes precedence over `_.templateSettings` values.
-     *
-     * **Note:** In the development build `_.template` utilizes
-     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
-     * for easier debugging.
-     *
-     * For more information on precompiling templates see
-     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
-     *
-     * For more information on Chrome extension sandboxes see
-     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The template string.
-     * @param {Object} [options] The options object.
-     * @param {RegExp} [options.escape] The HTML "escape" delimiter.
-     * @param {RegExp} [options.evaluate] The "evaluate" delimiter.
-     * @param {Object} [options.imports] An object to import into the template as free variables.
-     * @param {RegExp} [options.interpolate] The "interpolate" delimiter.
-     * @param {string} [options.sourceURL] The sourceURL of the template's compiled source.
-     * @param {string} [options.variable] The data object variable name.
-     * @param- {Object} [otherOptions] Enables the legacy `options` param signature.
-     * @returns {Function} Returns the compiled template function.
-     * @example
-     *
-     * // using the "interpolate" delimiter to create a compiled template
-     * var compiled = _.template('hello <%= user %>!');
-     * compiled({ 'user': 'fred' });
-     * // => 'hello fred!'
-     *
-     * // using the HTML "escape" delimiter to escape data property values
-     * var compiled = _.template('<b><%- value %></b>');
-     * compiled({ 'value': '<script>' });
-     * // => '<b>&lt;script&gt;</b>'
-     *
-     * // using the "evaluate" delimiter to execute JavaScript and generate HTML
-     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
-     * compiled({ 'users': ['fred', 'barney'] });
-     * // => '<li>fred</li><li>barney</li>'
-     *
-     * // using the internal `print` function in "evaluate" delimiters
-     * var compiled = _.template('<% print("hello " + user); %>!');
-     * compiled({ 'user': 'barney' });
-     * // => 'hello barney!'
-     *
-     * // using the ES delimiter as an alternative to the default "interpolate" delimiter
-     * var compiled = _.template('hello ${ user }!');
-     * compiled({ 'user': 'pebbles' });
-     * // => 'hello pebbles!'
-     *
-     * // using custom template delimiters
-     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
-     * var compiled = _.template('hello {{ user }}!');
-     * compiled({ 'user': 'mustache' });
-     * // => 'hello mustache!'
-     *
-     * // using backslashes to treat delimiters as plain text
-     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
-     * compiled({ 'value': 'ignored' });
-     * // => '<%- value %>'
-     *
-     * // using the `imports` option to import `jQuery` as `jq`
-     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
-     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
-     * compiled({ 'users': ['fred', 'barney'] });
-     * // => '<li>fred</li><li>barney</li>'
-     *
-     * // using the `sourceURL` option to specify a custom sourceURL for the template
-     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
-     * compiled(data);
-     * // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector
-     *
-     * // using the `variable` option to ensure a with-statement isn't used in the compiled template
-     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
-     * compiled.source;
-     * // => function(data) {
-     * //   var __t, __p = '';
-     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
-     * //   return __p;
-     * // }
-     *
-     * // using the `source` property to inline compiled templates for meaningful
-     * // line numbers in error messages and a stack trace
-     * fs.writeFileSync(path.join(cwd, 'jst.js'), '\
-     *   var JST = {\
-     *     "main": ' + _.template(mainText).source + '\
-     *   };\
-     * ');
-     */
-    function template(string, options, otherOptions) {
-      // Based on John Resig's `tmpl` implementation (http://ejohn.org/blog/javascript-micro-templating/)
-      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
-      var settings = lodash.templateSettings;
-
-      if (otherOptions && isIterateeCall(string, options, otherOptions)) {
-        options = otherOptions = undefined;
-      }
-      string = baseToString(string);
-      options = assignWith(baseAssign({}, otherOptions || options), settings, assignOwnDefaults);
-
-      var imports = assignWith(baseAssign({}, options.imports), settings.imports, assignOwnDefaults),
-          importsKeys = keys(imports),
-          importsValues = baseValues(imports, importsKeys);
-
-      var isEscaping,
-          isEvaluating,
-          index = 0,
-          interpolate = options.interpolate || reNoMatch,
-          source = "__p += '";
-
-      // Compile the regexp to match each delimiter.
-      var reDelimiters = RegExp(
-        (options.escape || reNoMatch).source + '|' +
-        interpolate.source + '|' +
-        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
-        (options.evaluate || reNoMatch).source + '|$'
-      , 'g');
-
-      // Use a sourceURL for easier debugging.
-      var sourceURL = '//# sourceURL=' +
-        ('sourceURL' in options
-          ? options.sourceURL
-          : ('lodash.templateSources[' + (++templateCounter) + ']')
-        ) + '\n';
-
-      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
-        interpolateValue || (interpolateValue = esTemplateValue);
-
-        // Escape characters that can't be included in string literals.
-        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
-
-        // Replace delimiters with snippets.
-        if (escapeValue) {
-          isEscaping = true;
-          source += "' +\n__e(" + escapeValue + ") +\n'";
-        }
-        if (evaluateValue) {
-          isEvaluating = true;
-          source += "';\n" + evaluateValue + ";\n__p += '";
-        }
-        if (interpolateValue) {
-          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
-        }
-        index = offset + match.length;
-
-        // The JS engine embedded in Adobe products requires returning the `match`
-        // string in order to produce the correct `offset` value.
-        return match;
-      });
-
-      source += "';\n";
-
-      // If `variable` is not specified wrap a with-statement around the generated
-      // code to add the data object to the top of the scope chain.
-      var variable = options.variable;
-      if (!variable) {
-        source = 'with (obj) {\n' + source + '\n}\n';
-      }
-      // Cleanup code by stripping empty strings.
-      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
-        .replace(reEmptyStringMiddle, '$1')
-        .replace(reEmptyStringTrailing, '$1;');
-
-      // Frame code as the function body.
-      source = 'function(' + (variable || 'obj') + ') {\n' +
-        (variable
-          ? ''
-          : 'obj || (obj = {});\n'
-        ) +
-        "var __t, __p = ''" +
-        (isEscaping
-           ? ', __e = _.escape'
-           : ''
-        ) +
-        (isEvaluating
-          ? ', __j = Array.prototype.join;\n' +
-            "function print() { __p += __j.call(arguments, '') }\n"
-          : ';\n'
-        ) +
-        source +
-        'return __p\n}';
-
-      var result = attempt(function() {
-        return Function(importsKeys, sourceURL + 'return ' + source).apply(undefined, importsValues);
-      });
-
-      // Provide the compiled function's source by its `toString` method or
-      // the `source` property as a convenience for inlining compiled templates.
-      result.source = source;
-      if (isError(result)) {
-        throw result;
-      }
-      return result;
-    }
-
-    /**
-     * Removes leading and trailing whitespace or specified characters from `string`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to trim.
-     * @param {string} [chars=whitespace] The characters to trim.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {string} Returns the trimmed string.
-     * @example
-     *
-     * _.trim('  abc  ');
-     * // => 'abc'
-     *
-     * _.trim('-_-abc-_-', '_-');
-     * // => 'abc'
-     *
-     * _.map(['  foo  ', '  bar  '], _.trim);
-     * // => ['foo', 'bar']
-     */
-    function trim(string, chars, guard) {
-      var value = string;
-      string = baseToString(string);
-      if (!string) {
-        return string;
-      }
-      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
-        return string.slice(trimmedLeftIndex(string), trimmedRightIndex(string) + 1);
-      }
-      chars = (chars + '');
-      return string.slice(charsLeftIndex(string, chars), charsRightIndex(string, chars) + 1);
-    }
-
-    /**
-     * Removes leading whitespace or specified characters from `string`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to trim.
-     * @param {string} [chars=whitespace] The characters to trim.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {string} Returns the trimmed string.
-     * @example
-     *
-     * _.trimLeft('  abc  ');
-     * // => 'abc  '
-     *
-     * _.trimLeft('-_-abc-_-', '_-');
-     * // => 'abc-_-'
-     */
-    function trimLeft(string, chars, guard) {
-      var value = string;
-      string = baseToString(string);
-      if (!string) {
-        return string;
-      }
-      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
-        return string.slice(trimmedLeftIndex(string));
-      }
-      return string.slice(charsLeftIndex(string, (chars + '')));
-    }
-
-    /**
-     * Removes trailing whitespace or specified characters from `string`.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to trim.
-     * @param {string} [chars=whitespace] The characters to trim.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {string} Returns the trimmed string.
-     * @example
-     *
-     * _.trimRight('  abc  ');
-     * // => '  abc'
-     *
-     * _.trimRight('-_-abc-_-', '_-');
-     * // => '-_-abc'
-     */
-    function trimRight(string, chars, guard) {
-      var value = string;
-      string = baseToString(string);
-      if (!string) {
-        return string;
-      }
-      if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
-        return string.slice(0, trimmedRightIndex(string) + 1);
-      }
-      return string.slice(0, charsRightIndex(string, (chars + '')) + 1);
-    }
-
-    /**
-     * Truncates `string` if it's longer than the given maximum string length.
-     * The last characters of the truncated string are replaced with the omission
-     * string which defaults to "...".
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to truncate.
-     * @param {Object|number} [options] The options object or maximum string length.
-     * @param {number} [options.length=30] The maximum string length.
-     * @param {string} [options.omission='...'] The string to indicate text is omitted.
-     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {string} Returns the truncated string.
-     * @example
-     *
-     * _.trunc('hi-diddly-ho there, neighborino');
-     * // => 'hi-diddly-ho there, neighbo...'
-     *
-     * _.trunc('hi-diddly-ho there, neighborino', 24);
-     * // => 'hi-diddly-ho there, n...'
-     *
-     * _.trunc('hi-diddly-ho there, neighborino', {
-     *   'length': 24,
-     *   'separator': ' '
-     * });
-     * // => 'hi-diddly-ho there,...'
-     *
-     * _.trunc('hi-diddly-ho there, neighborino', {
-     *   'length': 24,
-     *   'separator': /,? +/
-     * });
-     * // => 'hi-diddly-ho there...'
-     *
-     * _.trunc('hi-diddly-ho there, neighborino', {
-     *   'omission': ' [...]'
-     * });
-     * // => 'hi-diddly-ho there, neig [...]'
-     */
-    function trunc(string, options, guard) {
-      if (guard && isIterateeCall(string, options, guard)) {
-        options = undefined;
-      }
-      var length = DEFAULT_TRUNC_LENGTH,
-          omission = DEFAULT_TRUNC_OMISSION;
-
-      if (options != null) {
-        if (isObject(options)) {
-          var separator = 'separator' in options ? options.separator : separator;
-          length = 'length' in options ? (+options.length || 0) : length;
-          omission = 'omission' in options ? baseToString(options.omission) : omission;
-        } else {
-          length = +options || 0;
-        }
-      }
-      string = baseToString(string);
-      if (length >= string.length) {
-        return string;
-      }
-      var end = length - omission.length;
-      if (end < 1) {
-        return omission;
-      }
-      var result = string.slice(0, end);
-      if (separator == null) {
-        return result + omission;
-      }
-      if (isRegExp(separator)) {
-        if (string.slice(end).search(separator)) {
-          var match,
-              newEnd,
-              substring = string.slice(0, end);
-
-          if (!separator.global) {
-            separator = RegExp(separator.source, (reFlags.exec(separator) || '') + 'g');
-          }
-          separator.lastIndex = 0;
-          while ((match = separator.exec(substring))) {
-            newEnd = match.index;
-          }
-          result = result.slice(0, newEnd == null ? end : newEnd);
-        }
-      } else if (string.indexOf(separator, end) != end) {
-        var index = result.lastIndexOf(separator);
-        if (index > -1) {
-          result = result.slice(0, index);
-        }
-      }
-      return result + omission;
-    }
-
-    /**
-     * The inverse of `_.escape`; this method converts the HTML entities
-     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, `&#39;`, and `&#96;` in `string` to their
-     * corresponding characters.
-     *
-     * **Note:** No other HTML entities are unescaped. To unescape additional HTML
-     * entities use a third-party library like [_he_](https://mths.be/he).
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to unescape.
-     * @returns {string} Returns the unescaped string.
-     * @example
-     *
-     * _.unescape('fred, barney, &amp; pebbles');
-     * // => 'fred, barney, & pebbles'
-     */
-    function unescape(string) {
-      string = baseToString(string);
-      return (string && reHasEscapedHtml.test(string))
-        ? string.replace(reEscapedHtml, unescapeHtmlChar)
-        : string;
-    }
-
-    /**
-     * Splits `string` into an array of its words.
-     *
-     * @static
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to inspect.
-     * @param {RegExp|string} [pattern] The pattern to match words.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Array} Returns the words of `string`.
-     * @example
-     *
-     * _.words('fred, barney, & pebbles');
-     * // => ['fred', 'barney', 'pebbles']
-     *
-     * _.words('fred, barney, & pebbles', /[^, ]+/g);
-     * // => ['fred', 'barney', '&', 'pebbles']
-     */
-    function words(string, pattern, guard) {
-      if (guard && isIterateeCall(string, pattern, guard)) {
-        pattern = undefined;
-      }
-      string = baseToString(string);
-      return string.match(pattern || reWords) || [];
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Attempts to invoke `func`, returning either the result or the caught error
-     * object. Any additional arguments are provided to `func` when it is invoked.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {Function} func The function to attempt.
-     * @returns {*} Returns the `func` result or error object.
-     * @example
-     *
-     * // avoid throwing errors for invalid selectors
-     * var elements = _.attempt(function(selector) {
-     *   return document.querySelectorAll(selector);
-     * }, '>_>');
-     *
-     * if (_.isError(elements)) {
-     *   elements = [];
-     * }
-     */
-    var attempt = restParam(function(func, args) {
-      try {
-        return func.apply(undefined, args);
-      } catch(e) {
-        return isError(e) ? e : new Error(e);
-      }
-    });
-
-    /**
-     * Creates a function that invokes `func` with the `this` binding of `thisArg`
-     * and arguments of the created function. If `func` is a property name the
-     * created callback returns the property value for a given element. If `func`
-     * is an object the created callback returns `true` for elements that contain
-     * the equivalent object properties, otherwise it returns `false`.
-     *
-     * @static
-     * @memberOf _
-     * @alias iteratee
-     * @category Utility
-     * @param {*} [func=_.identity] The value to convert to a callback.
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
-     * @returns {Function} Returns the callback.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36 },
-     *   { 'user': 'fred',   'age': 40 }
-     * ];
-     *
-     * // wrap to create custom callback shorthands
-     * _.callback = _.wrap(_.callback, function(callback, func, thisArg) {
-     *   var match = /^(.+?)__([gl]t)(.+)$/.exec(func);
-     *   if (!match) {
-     *     return callback(func, thisArg);
-     *   }
-     *   return function(object) {
-     *     return match[2] == 'gt'
-     *       ? object[match[1]] > match[3]
-     *       : object[match[1]] < match[3];
-     *   };
-     * });
-     *
-     * _.filter(users, 'age__gt36');
-     * // => [{ 'user': 'fred', 'age': 40 }]
-     */
-    function callback(func, thisArg, guard) {
-      if (guard && isIterateeCall(func, thisArg, guard)) {
-        thisArg = undefined;
-      }
-      return isObjectLike(func)
-        ? matches(func)
-        : baseCallback(func, thisArg);
-    }
-
-    /**
-     * Creates a function that returns `value`.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {*} value The value to return from the new function.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var object = { 'user': 'fred' };
-     * var getter = _.constant(object);
-     *
-     * getter() === object;
-     * // => true
-     */
-    function constant(value) {
-      return function() {
-        return value;
-      };
-    }
-
-    /**
-     * This method returns the first argument provided to it.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {*} value Any value.
-     * @returns {*} Returns `value`.
-     * @example
-     *
-     * var object = { 'user': 'fred' };
-     *
-     * _.identity(object) === object;
-     * // => true
-     */
-    function identity(value) {
-      return value;
-    }
-
-    /**
-     * Creates a function that performs a deep comparison between a given object
-     * and `source`, returning `true` if the given object has equivalent property
-     * values, else `false`.
-     *
-     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
-     * numbers, `Object` objects, regexes, and strings. Objects are compared by
-     * their own, not inherited, enumerable properties. For comparing a single
-     * own or inherited property value see `_.matchesProperty`.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {Object} source The object of property values to match.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': true },
-     *   { 'user': 'fred',   'age': 40, 'active': false }
-     * ];
-     *
-     * _.filter(users, _.matches({ 'age': 40, 'active': false }));
-     * // => [{ 'user': 'fred', 'age': 40, 'active': false }]
-     */
-    function matches(source) {
-      return baseMatches(baseClone(source, true));
-    }
-
-    /**
-     * Creates a function that compares the property value of `path` on a given
-     * object to `value`.
-     *
-     * **Note:** This method supports comparing arrays, booleans, `Date` objects,
-     * numbers, `Object` objects, regexes, and strings. Objects are compared by
-     * their own, not inherited, enumerable properties.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {Array|string} path The path of the property to get.
-     * @param {*} srcValue The value to match.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney' },
-     *   { 'user': 'fred' }
-     * ];
-     *
-     * _.find(users, _.matchesProperty('user', 'fred'));
-     * // => { 'user': 'fred' }
-     */
-    function matchesProperty(path, srcValue) {
-      return baseMatchesProperty(path, baseClone(srcValue, true));
-    }
-
-    /**
-     * Creates a function that invokes the method at `path` on a given object.
-     * Any additional arguments are provided to the invoked method.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {Array|string} path The path of the method to invoke.
-     * @param {...*} [args] The arguments to invoke the method with.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var objects = [
-     *   { 'a': { 'b': { 'c': _.constant(2) } } },
-     *   { 'a': { 'b': { 'c': _.constant(1) } } }
-     * ];
-     *
-     * _.map(objects, _.method('a.b.c'));
-     * // => [2, 1]
-     *
-     * _.invoke(_.sortBy(objects, _.method(['a', 'b', 'c'])), 'a.b.c');
-     * // => [1, 2]
-     */
-    var method = restParam(function(path, args) {
-      return function(object) {
-        return invokePath(object, path, args);
-      };
-    });
-
-    /**
-     * The opposite of `_.method`; this method creates a function that invokes
-     * the method at a given path on `object`. Any additional arguments are
-     * provided to the invoked method.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {Object} object The object to query.
-     * @param {...*} [args] The arguments to invoke the method with.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var array = _.times(3, _.constant),
-     *     object = { 'a': array, 'b': array, 'c': array };
-     *
-     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
-     * // => [2, 0]
-     *
-     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
-     * // => [2, 0]
-     */
-    var methodOf = restParam(function(object, args) {
-      return function(path) {
-        return invokePath(object, path, args);
-      };
-    });
-
-    /**
-     * Adds all own enumerable function properties of a source object to the
-     * destination object. If `object` is a function then methods are added to
-     * its prototype as well.
-     *
-     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
-     * avoid conflicts caused by modifying the original.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {Function|Object} [object=lodash] The destination object.
-     * @param {Object} source The object of functions to add.
-     * @param {Object} [options] The options object.
-     * @param {boolean} [options.chain=true] Specify whether the functions added
-     *  are chainable.
-     * @returns {Function|Object} Returns `object`.
-     * @example
-     *
-     * function vowels(string) {
-     *   return _.filter(string, function(v) {
-     *     return /[aeiou]/i.test(v);
-     *   });
-     * }
-     *
-     * _.mixin({ 'vowels': vowels });
-     * _.vowels('fred');
-     * // => ['e']
-     *
-     * _('fred').vowels().value();
-     * // => ['e']
-     *
-     * _.mixin({ 'vowels': vowels }, { 'chain': false });
-     * _('fred').vowels();
-     * // => ['e']
-     */
-    function mixin(object, source, options) {
-      if (options == null) {
-        var isObj = isObject(source),
-            props = isObj ? keys(source) : undefined,
-            methodNames = (props && props.length) ? baseFunctions(source, props) : undefined;
-
-        if (!(methodNames ? methodNames.length : isObj)) {
-          methodNames = false;
-          options = source;
-          source = object;
-          object = this;
-        }
-      }
-      if (!methodNames) {
-        methodNames = baseFunctions(source, keys(source));
-      }
-      var chain = true,
-          index = -1,
-          isFunc = isFunction(object),
-          length = methodNames.length;
-
-      if (options === false) {
-        chain = false;
-      } else if (isObject(options) && 'chain' in options) {
-        chain = options.chain;
-      }
-      while (++index < length) {
-        var methodName = methodNames[index],
-            func = source[methodName];
-
-        object[methodName] = func;
-        if (isFunc) {
-          object.prototype[methodName] = (function(func) {
-            return function() {
-              var chainAll = this.__chain__;
-              if (chain || chainAll) {
-                var result = object(this.__wrapped__),
-                    actions = result.__actions__ = arrayCopy(this.__actions__);
-
-                actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
-                result.__chain__ = chainAll;
-                return result;
-              }
-              return func.apply(object, arrayPush([this.value()], arguments));
-            };
-          }(func));
-        }
-      }
-      return object;
-    }
-
-    /**
-     * Reverts the `_` variable to its previous value and returns a reference to
-     * the `lodash` function.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @returns {Function} Returns the `lodash` function.
-     * @example
-     *
-     * var lodash = _.noConflict();
-     */
-    function noConflict() {
-      root._ = oldDash;
-      return this;
-    }
-
-    /**
-     * A no-operation function that returns `undefined` regardless of the
-     * arguments it receives.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @example
-     *
-     * var object = { 'user': 'fred' };
-     *
-     * _.noop(object) === undefined;
-     * // => true
-     */
-    function noop() {
-      // No operation performed.
-    }
-
-    /**
-     * Creates a function that returns the property value at `path` on a
-     * given object.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {Array|string} path The path of the property to get.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var objects = [
-     *   { 'a': { 'b': { 'c': 2 } } },
-     *   { 'a': { 'b': { 'c': 1 } } }
-     * ];
-     *
-     * _.map(objects, _.property('a.b.c'));
-     * // => [2, 1]
-     *
-     * _.pluck(_.sortBy(objects, _.property(['a', 'b', 'c'])), 'a.b.c');
-     * // => [1, 2]
-     */
-    function property(path) {
-      return isKey(path) ? baseProperty(path) : basePropertyDeep(path);
-    }
-
-    /**
-     * The opposite of `_.property`; this method creates a function that returns
-     * the property value at a given path on `object`.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {Object} object The object to query.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var array = [0, 1, 2],
-     *     object = { 'a': array, 'b': array, 'c': array };
-     *
-     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
-     * // => [2, 0]
-     *
-     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
-     * // => [2, 0]
-     */
-    function propertyOf(object) {
-      return function(path) {
-        return baseGet(object, toPath(path), path + '');
-      };
-    }
-
-    /**
-     * Creates an array of numbers (positive and/or negative) progressing from
-     * `start` up to, but not including, `end`. If `end` is not specified it is
-     * set to `start` with `start` then set to `0`. If `end` is less than `start`
-     * a zero-length range is created unless a negative `step` is specified.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {number} [start=0] The start of the range.
-     * @param {number} end The end of the range.
-     * @param {number} [step=1] The value to increment or decrement by.
-     * @returns {Array} Returns the new array of numbers.
-     * @example
-     *
-     * _.range(4);
-     * // => [0, 1, 2, 3]
-     *
-     * _.range(1, 5);
-     * // => [1, 2, 3, 4]
-     *
-     * _.range(0, 20, 5);
-     * // => [0, 5, 10, 15]
-     *
-     * _.range(0, -4, -1);
-     * // => [0, -1, -2, -3]
-     *
-     * _.range(1, 4, 0);
-     * // => [1, 1, 1]
-     *
-     * _.range(0);
-     * // => []
-     */
-    function range(start, end, step) {
-      if (step && isIterateeCall(start, end, step)) {
-        end = step = undefined;
-      }
-      start = +start || 0;
-      step = step == null ? 1 : (+step || 0);
-
-      if (end == null) {
-        end = start;
-        start = 0;
-      } else {
-        end = +end || 0;
-      }
-      // Use `Array(length)` so engines like Chakra and V8 avoid slower modes.
-      // See https://youtu.be/XAqIpGU8ZZk#t=17m25s for more details.
-      var index = -1,
-          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
-          result = Array(length);
-
-      while (++index < length) {
-        result[index] = start;
-        start += step;
-      }
-      return result;
-    }
-
-    /**
-     * Invokes the iteratee function `n` times, returning an array of the results
-     * of each invocation. The `iteratee` is bound to `thisArg` and invoked with
-     * one argument; (index).
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {number} n The number of times to invoke `iteratee`.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {Array} Returns the array of results.
-     * @example
-     *
-     * var diceRolls = _.times(3, _.partial(_.random, 1, 6, false));
-     * // => [3, 6, 4]
-     *
-     * _.times(3, function(n) {
-     *   mage.castSpell(n);
-     * });
-     * // => invokes `mage.castSpell(n)` three times with `n` of `0`, `1`, and `2`
-     *
-     * _.times(3, function(n) {
-     *   this.cast(n);
-     * }, mage);
-     * // => also invokes `mage.castSpell(n)` three times
-     */
-    function times(n, iteratee, thisArg) {
-      n = nativeFloor(n);
-
-      // Exit early to avoid a JSC JIT bug in Safari 8
-      // where `Array(0)` is treated as `Array(1)`.
-      if (n < 1 || !nativeIsFinite(n)) {
-        return [];
-      }
-      var index = -1,
-          result = Array(nativeMin(n, MAX_ARRAY_LENGTH));
-
-      iteratee = bindCallback(iteratee, thisArg, 1);
-      while (++index < n) {
-        if (index < MAX_ARRAY_LENGTH) {
-          result[index] = iteratee(index);
-        } else {
-          iteratee(index);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Generates a unique ID. If `prefix` is provided the ID is appended to it.
-     *
-     * @static
-     * @memberOf _
-     * @category Utility
-     * @param {string} [prefix] The value to prefix the ID with.
-     * @returns {string} Returns the unique ID.
-     * @example
-     *
-     * _.uniqueId('contact_');
-     * // => 'contact_104'
-     *
-     * _.uniqueId();
-     * // => '105'
-     */
-    function uniqueId(prefix) {
-      var id = ++idCounter;
-      return baseToString(prefix) + id;
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Adds two numbers.
-     *
-     * @static
-     * @memberOf _
-     * @category Math
-     * @param {number} augend The first number to add.
-     * @param {number} addend The second number to add.
-     * @returns {number} Returns the sum.
-     * @example
-     *
-     * _.add(6, 4);
-     * // => 10
-     */
-    function add(augend, addend) {
-      return (+augend || 0) + (+addend || 0);
-    }
-
-    /**
-     * Calculates `n` rounded up to `precision`.
-     *
-     * @static
-     * @memberOf _
-     * @category Math
-     * @param {number} n The number to round up.
-     * @param {number} [precision=0] The precision to round up to.
-     * @returns {number} Returns the rounded up number.
-     * @example
-     *
-     * _.ceil(4.006);
-     * // => 5
-     *
-     * _.ceil(6.004, 2);
-     * // => 6.01
-     *
-     * _.ceil(6040, -2);
-     * // => 6100
-     */
-    var ceil = createRound('ceil');
-
-    /**
-     * Calculates `n` rounded down to `precision`.
-     *
-     * @static
-     * @memberOf _
-     * @category Math
-     * @param {number} n The number to round down.
-     * @param {number} [precision=0] The precision to round down to.
-     * @returns {number} Returns the rounded down number.
-     * @example
-     *
-     * _.floor(4.006);
-     * // => 4
-     *
-     * _.floor(0.046, 2);
-     * // => 0.04
-     *
-     * _.floor(4060, -2);
-     * // => 4000
-     */
-    var floor = createRound('floor');
-
-    /**
-     * Gets the maximum value of `collection`. If `collection` is empty or falsey
-     * `-Infinity` is returned. If an iteratee function is provided it is invoked
-     * for each value in `collection` to generate the criterion by which the value
-     * is ranked. The `iteratee` is bound to `thisArg` and invoked with three
-     * arguments: (value, index, collection).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Math
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {*} Returns the maximum value.
-     * @example
-     *
-     * _.max([4, 2, 8, 6]);
-     * // => 8
-     *
-     * _.max([]);
-     * // => -Infinity
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36 },
-     *   { 'user': 'fred',   'age': 40 }
-     * ];
-     *
-     * _.max(users, function(chr) {
-     *   return chr.age;
-     * });
-     * // => { 'user': 'fred', 'age': 40 }
-     *
-     * // using the `_.property` callback shorthand
-     * _.max(users, 'age');
-     * // => { 'user': 'fred', 'age': 40 }
-     */
-    var max = createExtremum(gt, NEGATIVE_INFINITY);
-
-    /**
-     * Gets the minimum value of `collection`. If `collection` is empty or falsey
-     * `Infinity` is returned. If an iteratee function is provided it is invoked
-     * for each value in `collection` to generate the criterion by which the value
-     * is ranked. The `iteratee` is bound to `thisArg` and invoked with three
-     * arguments: (value, index, collection).
-     *
-     * If a property name is provided for `iteratee` the created `_.property`
-     * style callback returns the property value of the given element.
-     *
-     * If a value is also provided for `thisArg` the created `_.matchesProperty`
-     * style callback returns `true` for elements that have a matching property
-     * value, else `false`.
-     *
-     * If an object is provided for `iteratee` the created `_.matches` style
-     * callback returns `true` for elements that have the properties of the given
-     * object, else `false`.
-     *
-     * @static
-     * @memberOf _
-     * @category Math
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {*} Returns the minimum value.
-     * @example
-     *
-     * _.min([4, 2, 8, 6]);
-     * // => 2
-     *
-     * _.min([]);
-     * // => Infinity
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36 },
-     *   { 'user': 'fred',   'age': 40 }
-     * ];
-     *
-     * _.min(users, function(chr) {
-     *   return chr.age;
-     * });
-     * // => { 'user': 'barney', 'age': 36 }
-     *
-     * // using the `_.property` callback shorthand
-     * _.min(users, 'age');
-     * // => { 'user': 'barney', 'age': 36 }
-     */
-    var min = createExtremum(lt, POSITIVE_INFINITY);
-
-    /**
-     * Calculates `n` rounded to `precision`.
-     *
-     * @static
-     * @memberOf _
-     * @category Math
-     * @param {number} n The number to round.
-     * @param {number} [precision=0] The precision to round to.
-     * @returns {number} Returns the rounded number.
-     * @example
-     *
-     * _.round(4.006);
-     * // => 4
-     *
-     * _.round(4.006, 2);
-     * // => 4.01
-     *
-     * _.round(4060, -2);
-     * // => 4100
-     */
-    var round = createRound('round');
-
-    /**
-     * Gets the sum of the values in `collection`.
-     *
-     * @static
-     * @memberOf _
-     * @category Math
-     * @param {Array|Object|string} collection The collection to iterate over.
-     * @param {Function|Object|string} [iteratee] The function invoked per iteration.
-     * @param {*} [thisArg] The `this` binding of `iteratee`.
-     * @returns {number} Returns the sum.
-     * @example
-     *
-     * _.sum([4, 6]);
-     * // => 10
-     *
-     * _.sum({ 'a': 4, 'b': 6 });
-     * // => 10
-     *
-     * var objects = [
-     *   { 'n': 4 },
-     *   { 'n': 6 }
-     * ];
-     *
-     * _.sum(objects, function(object) {
-     *   return object.n;
-     * });
-     * // => 10
-     *
-     * // using the `_.property` callback shorthand
-     * _.sum(objects, 'n');
-     * // => 10
-     */
-    function sum(collection, iteratee, thisArg) {
-      if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
-        iteratee = undefined;
-      }
-      iteratee = getCallback(iteratee, thisArg, 3);
-      return iteratee.length == 1
-        ? arraySum(isArray(collection) ? collection : toIterable(collection), iteratee)
-        : baseSum(collection, iteratee);
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    // Ensure wrappers are instances of `baseLodash`.
-    lodash.prototype = baseLodash.prototype;
-
-    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
-    LodashWrapper.prototype.constructor = LodashWrapper;
-
-    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
-    LazyWrapper.prototype.constructor = LazyWrapper;
-
-    // Add functions to the `Map` cache.
-    MapCache.prototype['delete'] = mapDelete;
-    MapCache.prototype.get = mapGet;
-    MapCache.prototype.has = mapHas;
-    MapCache.prototype.set = mapSet;
-
-    // Add functions to the `Set` cache.
-    SetCache.prototype.push = cachePush;
-
-    // Assign cache to `_.memoize`.
-    memoize.Cache = MapCache;
-
-    // Add functions that return wrapped values when chaining.
-    lodash.after = after;
-    lodash.ary = ary;
-    lodash.assign = assign;
-    lodash.at = at;
-    lodash.before = before;
-    lodash.bind = bind;
-    lodash.bindAll = bindAll;
-    lodash.bindKey = bindKey;
-    lodash.callback = callback;
-    lodash.chain = chain;
-    lodash.chunk = chunk;
-    lodash.compact = compact;
-    lodash.constant = constant;
-    lodash.countBy = countBy;
-    lodash.create = create;
-    lodash.curry = curry;
-    lodash.curryRight = curryRight;
-    lodash.debounce = debounce;
-    lodash.defaults = defaults;
-    lodash.defaultsDeep = defaultsDeep;
-    lodash.defer = defer;
-    lodash.delay = delay;
-    lodash.difference = difference;
-    lodash.drop = drop;
-    lodash.dropRight = dropRight;
-    lodash.dropRightWhile = dropRightWhile;
-    lodash.dropWhile = dropWhile;
-    lodash.fill = fill;
-    lodash.filter = filter;
-    lodash.flatten = flatten;
-    lodash.flattenDeep = flattenDeep;
-    lodash.flow = flow;
-    lodash.flowRight = flowRight;
-    lodash.forEach = forEach;
-    lodash.forEachRight = forEachRight;
-    lodash.forIn = forIn;
-    lodash.forInRight = forInRight;
-    lodash.forOwn = forOwn;
-    lodash.forOwnRight = forOwnRight;
-    lodash.functions = functions;
-    lodash.groupBy = groupBy;
-    lodash.indexBy = indexBy;
-    lodash.initial = initial;
-    lodash.intersection = intersection;
-    lodash.invert = invert;
-    lodash.invoke = invoke;
-    lodash.keys = keys;
-    lodash.keysIn = keysIn;
-    lodash.map = map;
-    lodash.mapKeys = mapKeys;
-    lodash.mapValues = mapValues;
-    lodash.matches = matches;
-    lodash.matchesProperty = matchesProperty;
-    lodash.memoize = memoize;
-    lodash.merge = merge;
-    lodash.method = method;
-    lodash.methodOf = methodOf;
-    lodash.mixin = mixin;
-    lodash.modArgs = modArgs;
-    lodash.negate = negate;
-    lodash.omit = omit;
-    lodash.once = once;
-    lodash.pairs = pairs;
-    lodash.partial = partial;
-    lodash.partialRight = partialRight;
-    lodash.partition = partition;
-    lodash.pick = pick;
-    lodash.pluck = pluck;
-    lodash.property = property;
-    lodash.propertyOf = propertyOf;
-    lodash.pull = pull;
-    lodash.pullAt = pullAt;
-    lodash.range = range;
-    lodash.rearg = rearg;
-    lodash.reject = reject;
-    lodash.remove = remove;
-    lodash.rest = rest;
-    lodash.restParam = restParam;
-    lodash.set = set;
-    lodash.shuffle = shuffle;
-    lodash.slice = slice;
-    lodash.sortBy = sortBy;
-    lodash.sortByAll = sortByAll;
-    lodash.sortByOrder = sortByOrder;
-    lodash.spread = spread;
-    lodash.take = take;
-    lodash.takeRight = takeRight;
-    lodash.takeRightWhile = takeRightWhile;
-    lodash.takeWhile = takeWhile;
-    lodash.tap = tap;
-    lodash.throttle = throttle;
-    lodash.thru = thru;
-    lodash.times = times;
-    lodash.toArray = toArray;
-    lodash.toPlainObject = toPlainObject;
-    lodash.transform = transform;
-    lodash.union = union;
-    lodash.uniq = uniq;
-    lodash.unzip = unzip;
-    lodash.unzipWith = unzipWith;
-    lodash.values = values;
-    lodash.valuesIn = valuesIn;
-    lodash.where = where;
-    lodash.without = without;
-    lodash.wrap = wrap;
-    lodash.xor = xor;
-    lodash.zip = zip;
-    lodash.zipObject = zipObject;
-    lodash.zipWith = zipWith;
-
-    // Add aliases.
-    lodash.backflow = flowRight;
-    lodash.collect = map;
-    lodash.compose = flowRight;
-    lodash.each = forEach;
-    lodash.eachRight = forEachRight;
-    lodash.extend = assign;
-    lodash.iteratee = callback;
-    lodash.methods = functions;
-    lodash.object = zipObject;
-    lodash.select = filter;
-    lodash.tail = rest;
-    lodash.unique = uniq;
-
-    // Add functions to `lodash.prototype`.
-    mixin(lodash, lodash);
-
-    /*------------------------------------------------------------------------*/
-
-    // Add functions that return unwrapped values when chaining.
-    lodash.add = add;
-    lodash.attempt = attempt;
-    lodash.camelCase = camelCase;
-    lodash.capitalize = capitalize;
-    lodash.ceil = ceil;
-    lodash.clone = clone;
-    lodash.cloneDeep = cloneDeep;
-    lodash.deburr = deburr;
-    lodash.endsWith = endsWith;
-    lodash.escape = escape;
-    lodash.escapeRegExp = escapeRegExp;
-    lodash.every = every;
-    lodash.find = find;
-    lodash.findIndex = findIndex;
-    lodash.findKey = findKey;
-    lodash.findLast = findLast;
-    lodash.findLastIndex = findLastIndex;
-    lodash.findLastKey = findLastKey;
-    lodash.findWhere = findWhere;
-    lodash.first = first;
-    lodash.floor = floor;
-    lodash.get = get;
-    lodash.gt = gt;
-    lodash.gte = gte;
-    lodash.has = has;
-    lodash.identity = identity;
-    lodash.includes = includes;
-    lodash.indexOf = indexOf;
-    lodash.inRange = inRange;
-    lodash.isArguments = isArguments;
-    lodash.isArray = isArray;
-    lodash.isBoolean = isBoolean;
-    lodash.isDate = isDate;
-    lodash.isElement = isElement;
-    lodash.isEmpty = isEmpty;
-    lodash.isEqual = isEqual;
-    lodash.isError = isError;
-    lodash.isFinite = isFinite;
-    lodash.isFunction = isFunction;
-    lodash.isMatch = isMatch;
-    lodash.isNaN = isNaN;
-    lodash.isNative = isNative;
-    lodash.isNull = isNull;
-    lodash.isNumber = isNumber;
-    lodash.isObject = isObject;
-    lodash.isPlainObject = isPlainObject;
-    lodash.isRegExp = isRegExp;
-    lodash.isString = isString;
-    lodash.isTypedArray = isTypedArray;
-    lodash.isUndefined = isUndefined;
-    lodash.kebabCase = kebabCase;
-    lodash.last = last;
-    lodash.lastIndexOf = lastIndexOf;
-    lodash.lt = lt;
-    lodash.lte = lte;
-    lodash.max = max;
-    lodash.min = min;
-    lodash.noConflict = noConflict;
-    lodash.noop = noop;
-    lodash.now = now;
-    lodash.pad = pad;
-    lodash.padLeft = padLeft;
-    lodash.padRight = padRight;
-    lodash.parseInt = parseInt;
-    lodash.random = random;
-    lodash.reduce = reduce;
-    lodash.reduceRight = reduceRight;
-    lodash.repeat = repeat;
-    lodash.result = result;
-    lodash.round = round;
-    lodash.runInContext = runInContext;
-    lodash.size = size;
-    lodash.snakeCase = snakeCase;
-    lodash.some = some;
-    lodash.sortedIndex = sortedIndex;
-    lodash.sortedLastIndex = sortedLastIndex;
-    lodash.startCase = startCase;
-    lodash.startsWith = startsWith;
-    lodash.sum = sum;
-    lodash.template = template;
-    lodash.trim = trim;
-    lodash.trimLeft = trimLeft;
-    lodash.trimRight = trimRight;
-    lodash.trunc = trunc;
-    lodash.unescape = unescape;
-    lodash.uniqueId = uniqueId;
-    lodash.words = words;
-
-    // Add aliases.
-    lodash.all = every;
-    lodash.any = some;
-    lodash.contains = includes;
-    lodash.eq = isEqual;
-    lodash.detect = find;
-    lodash.foldl = reduce;
-    lodash.foldr = reduceRight;
-    lodash.head = first;
-    lodash.include = includes;
-    lodash.inject = reduce;
-
-    mixin(lodash, (function() {
-      var source = {};
-      baseForOwn(lodash, function(func, methodName) {
-        if (!lodash.prototype[methodName]) {
-          source[methodName] = func;
-        }
-      });
-      return source;
-    }()), false);
-
-    /*------------------------------------------------------------------------*/
-
-    // Add functions capable of returning wrapped and unwrapped values when chaining.
-    lodash.sample = sample;
-
-    lodash.prototype.sample = function(n) {
-      if (!this.__chain__ && n == null) {
-        return sample(this.value());
-      }
-      return this.thru(function(value) {
-        return sample(value, n);
-      });
-    };
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * The semantic version number.
-     *
-     * @static
-     * @memberOf _
-     * @type string
-     */
-    lodash.VERSION = VERSION;
-
-    // Assign default placeholders.
-    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
-      lodash[methodName].placeholder = lodash;
-    });
-
-    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
-    arrayEach(['drop', 'take'], function(methodName, index) {
-      LazyWrapper.prototype[methodName] = function(n) {
-        var filtered = this.__filtered__;
-        if (filtered && !index) {
-          return new LazyWrapper(this);
-        }
-        n = n == null ? 1 : nativeMax(nativeFloor(n) || 0, 0);
-
-        var result = this.clone();
-        if (filtered) {
-          result.__takeCount__ = nativeMin(result.__takeCount__, n);
-        } else {
-          result.__views__.push({ 'size': n, 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') });
-        }
-        return result;
-      };
-
-      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
-        return this.reverse()[methodName](n).reverse();
-      };
-    });
-
-    // Add `LazyWrapper` methods that accept an `iteratee` value.
-    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
-      var type = index + 1,
-          isFilter = type != LAZY_MAP_FLAG;
-
-      LazyWrapper.prototype[methodName] = function(iteratee, thisArg) {
-        var result = this.clone();
-        result.__iteratees__.push({ 'iteratee': getCallback(iteratee, thisArg, 1), 'type': type });
-        result.__filtered__ = result.__filtered__ || isFilter;
-        return result;
-      };
-    });
-
-    // Add `LazyWrapper` methods for `_.first` and `_.last`.
-    arrayEach(['first', 'last'], function(methodName, index) {
-      var takeName = 'take' + (index ? 'Right' : '');
-
-      LazyWrapper.prototype[methodName] = function() {
-        return this[takeName](1).value()[0];
-      };
-    });
-
-    // Add `LazyWrapper` methods for `_.initial` and `_.rest`.
-    arrayEach(['initial', 'rest'], function(methodName, index) {
-      var dropName = 'drop' + (index ? '' : 'Right');
-
-      LazyWrapper.prototype[methodName] = function() {
-        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
-      };
-    });
-
-    // Add `LazyWrapper` methods for `_.pluck` and `_.where`.
-    arrayEach(['pluck', 'where'], function(methodName, index) {
-      var operationName = index ? 'filter' : 'map',
-          createCallback = index ? baseMatches : property;
-
-      LazyWrapper.prototype[methodName] = function(value) {
-        return this[operationName](createCallback(value));
-      };
-    });
-
-    LazyWrapper.prototype.compact = function() {
-      return this.filter(identity);
-    };
-
-    LazyWrapper.prototype.reject = function(predicate, thisArg) {
-      predicate = getCallback(predicate, thisArg, 1);
-      return this.filter(function(value) {
-        return !predicate(value);
-      });
-    };
-
-    LazyWrapper.prototype.slice = function(start, end) {
-      start = start == null ? 0 : (+start || 0);
-
-      var result = this;
-      if (result.__filtered__ && (start > 0 || end < 0)) {
-        return new LazyWrapper(result);
-      }
-      if (start < 0) {
-        result = result.takeRight(-start);
-      } else if (start) {
-        result = result.drop(start);
-      }
-      if (end !== undefined) {
-        end = (+end || 0);
-        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
-      }
-      return result;
-    };
-
-    LazyWrapper.prototype.takeRightWhile = function(predicate, thisArg) {
-      return this.reverse().takeWhile(predicate, thisArg).reverse();
-    };
-
-    LazyWrapper.prototype.toArray = function() {
-      return this.take(POSITIVE_INFINITY);
-    };
-
-    // Add `LazyWrapper` methods to `lodash.prototype`.
-    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
-      var checkIteratee = /^(?:filter|map|reject)|While$/.test(methodName),
-          retUnwrapped = /^(?:first|last)$/.test(methodName),
-          lodashFunc = lodash[retUnwrapped ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName];
-
-      if (!lodashFunc) {
-        return;
-      }
-      lodash.prototype[methodName] = function() {
-        var args = retUnwrapped ? [1] : arguments,
-            chainAll = this.__chain__,
-            value = this.__wrapped__,
-            isHybrid = !!this.__actions__.length,
-            isLazy = value instanceof LazyWrapper,
-            iteratee = args[0],
-            useLazy = isLazy || isArray(value);
-
-        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
-          // Avoid lazy use if the iteratee has a "length" value other than `1`.
-          isLazy = useLazy = false;
-        }
-        var interceptor = function(value) {
-          return (retUnwrapped && chainAll)
-            ? lodashFunc(value, 1)[0]
-            : lodashFunc.apply(undefined, arrayPush([value], args));
-        };
-
-        var action = { 'func': thru, 'args': [interceptor], 'thisArg': undefined },
-            onlyLazy = isLazy && !isHybrid;
-
-        if (retUnwrapped && !chainAll) {
-          if (onlyLazy) {
-            value = value.clone();
-            value.__actions__.push(action);
-            return func.call(value);
-          }
-          return lodashFunc.call(undefined, this.value())[0];
-        }
-        if (!retUnwrapped && useLazy) {
-          value = onlyLazy ? value : new LazyWrapper(this);
-          var result = func.apply(value, args);
-          result.__actions__.push(action);
-          return new LodashWrapper(result, chainAll);
-        }
-        return this.thru(interceptor);
-      };
-    });
-
-    // Add `Array` and `String` methods to `lodash.prototype`.
-    arrayEach(['join', 'pop', 'push', 'replace', 'shift', 'sort', 'splice', 'split', 'unshift'], function(methodName) {
-      var func = (/^(?:replace|split)$/.test(methodName) ? stringProto : arrayProto)[methodName],
-          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
-          retUnwrapped = /^(?:join|pop|replace|shift)$/.test(methodName);
-
-      lodash.prototype[methodName] = function() {
-        var args = arguments;
-        if (retUnwrapped && !this.__chain__) {
-          return func.apply(this.value(), args);
-        }
-        return this[chainName](function(value) {
-          return func.apply(value, args);
-        });
-      };
-    });
-
-    // Map minified function names to their real names.
-    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
-      var lodashFunc = lodash[methodName];
-      if (lodashFunc) {
-        var key = lodashFunc.name,
-            names = realNames[key] || (realNames[key] = []);
-
-        names.push({ 'name': methodName, 'func': lodashFunc });
-      }
-    });
-
-    realNames[createHybridWrapper(undefined, BIND_KEY_FLAG).name] = [{ 'name': 'wrapper', 'func': undefined }];
-
-    // Add functions to the lazy wrapper.
-    LazyWrapper.prototype.clone = lazyClone;
-    LazyWrapper.prototype.reverse = lazyReverse;
-    LazyWrapper.prototype.value = lazyValue;
-
-    // Add chaining functions to the `lodash` wrapper.
-    lodash.prototype.chain = wrapperChain;
-    lodash.prototype.commit = wrapperCommit;
-    lodash.prototype.concat = wrapperConcat;
-    lodash.prototype.plant = wrapperPlant;
-    lodash.prototype.reverse = wrapperReverse;
-    lodash.prototype.toString = wrapperToString;
-    lodash.prototype.run = lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
-
-    // Add function aliases to the `lodash` wrapper.
-    lodash.prototype.collect = lodash.prototype.map;
-    lodash.prototype.head = lodash.prototype.first;
-    lodash.prototype.select = lodash.prototype.filter;
-    lodash.prototype.tail = lodash.prototype.rest;
-
-    return lodash;
-  }
-
-  /*--------------------------------------------------------------------------*/
-
-  // Export lodash.
-  var _ = runInContext();
-
-  // Some AMD build optimizers like r.js check for condition patterns like the following:
-  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
-    // Expose lodash to the global object when an AMD loader is present to avoid
-    // errors in cases where lodash is loaded by a script tag and not intended
-    // as an AMD module. See http://requirejs.org/docs/errors.html#mismatch for
-    // more details.
-    root._ = _;
-
-    // Define as an anonymous module so, through path mapping, it can be
-    // referenced as the "underscore" module.
-    define(function() {
-      return _;
-    });
-  }
-  // Check for `exports` after `define` in case a build optimizer adds an `exports` object.
-  else if (freeExports && freeModule) {
-    // Export for Node.js or RingoJS.
-    if (moduleExports) {
-      (freeModule.exports = _)._ = _;
-    }
-    // Export for Rhino with CommonJS support.
-    else {
-      freeExports._ = _;
-    }
-  }
-  else {
-    // Export for a browser or Rhino.
-    root._ = _;
-  }
-}.call(this));
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],3:[function(require,module,exports){
-/*global define:false */
-/**
- * Copyright 2015 Craig Campbell
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * Mousetrap is a simple keyboard shortcut library for Javascript with
- * no external dependencies
- *
- * @version 1.5.3
- * @url craig.is/killing/mice
- */
-(function(window, document, undefined) {
-
-    /**
-     * mapping of special keycodes to their corresponding keys
-     *
-     * everything in this dictionary cannot use keypress events
-     * so it has to be here to map to the correct keycodes for
-     * keyup/keydown events
-     *
-     * @type {Object}
-     */
-    var _MAP = {
-        8: 'backspace',
-        9: 'tab',
-        13: 'enter',
-        16: 'shift',
-        17: 'ctrl',
-        18: 'alt',
-        20: 'capslock',
-        27: 'esc',
-        32: 'space',
-        33: 'pageup',
-        34: 'pagedown',
-        35: 'end',
-        36: 'home',
-        37: 'left',
-        38: 'up',
-        39: 'right',
-        40: 'down',
-        45: 'ins',
-        46: 'del',
-        91: 'meta',
-        93: 'meta',
-        224: 'meta'
-    };
-
-    /**
-     * mapping for special characters so they can support
-     *
-     * this dictionary is only used incase you want to bind a
-     * keyup or keydown event to one of these keys
-     *
-     * @type {Object}
-     */
-    var _KEYCODE_MAP = {
-        106: '*',
-        107: '+',
-        109: '-',
-        110: '.',
-        111 : '/',
-        186: ';',
-        187: '=',
-        188: ',',
-        189: '-',
-        190: '.',
-        191: '/',
-        192: '`',
-        219: '[',
-        220: '\\',
-        221: ']',
-        222: '\''
-    };
-
-    /**
-     * this is a mapping of keys that require shift on a US keypad
-     * back to the non shift equivelents
-     *
-     * this is so you can use keyup events with these keys
-     *
-     * note that this will only work reliably on US keyboards
-     *
-     * @type {Object}
-     */
-    var _SHIFT_MAP = {
-        '~': '`',
-        '!': '1',
-        '@': '2',
-        '#': '3',
-        '$': '4',
-        '%': '5',
-        '^': '6',
-        '&': '7',
-        '*': '8',
-        '(': '9',
-        ')': '0',
-        '_': '-',
-        '+': '=',
-        ':': ';',
-        '\"': '\'',
-        '<': ',',
-        '>': '.',
-        '?': '/',
-        '|': '\\'
-    };
-
-    /**
-     * this is a list of special strings you can use to map
-     * to modifier keys when you specify your keyboard shortcuts
-     *
-     * @type {Object}
-     */
-    var _SPECIAL_ALIASES = {
-        'option': 'alt',
-        'command': 'meta',
-        'return': 'enter',
-        'escape': 'esc',
-        'plus': '+',
-        'mod': /Mac|iPod|iPhone|iPad/.test(navigator.platform) ? 'meta' : 'ctrl'
-    };
-
-    /**
-     * variable to store the flipped version of _MAP from above
-     * needed to check if we should use keypress or not when no action
-     * is specified
-     *
-     * @type {Object|undefined}
-     */
-    var _REVERSE_MAP;
-
-    /**
-     * loop through the f keys, f1 to f19 and add them to the map
-     * programatically
-     */
-    for (var i = 1; i < 20; ++i) {
-        _MAP[111 + i] = 'f' + i;
-    }
-
-    /**
-     * loop through to map numbers on the numeric keypad
-     */
-    for (i = 0; i <= 9; ++i) {
-        _MAP[i + 96] = i;
-    }
-
-    /**
-     * cross browser add event method
-     *
-     * @param {Element|HTMLDocument} object
-     * @param {string} type
-     * @param {Function} callback
-     * @returns void
-     */
-    function _addEvent(object, type, callback) {
-        if (object.addEventListener) {
-            object.addEventListener(type, callback, false);
-            return;
-        }
-
-        object.attachEvent('on' + type, callback);
-    }
-
-    /**
-     * takes the event and returns the key character
-     *
-     * @param {Event} e
-     * @return {string}
-     */
-    function _characterFromEvent(e) {
-
-        // for keypress events we should return the character as is
-        if (e.type == 'keypress') {
-            var character = String.fromCharCode(e.which);
-
-            // if the shift key is not pressed then it is safe to assume
-            // that we want the character to be lowercase.  this means if
-            // you accidentally have caps lock on then your key bindings
-            // will continue to work
-            //
-            // the only side effect that might not be desired is if you
-            // bind something like 'A' cause you want to trigger an
-            // event when capital A is pressed caps lock will no longer
-            // trigger the event.  shift+a will though.
-            if (!e.shiftKey) {
-                character = character.toLowerCase();
-            }
-
-            return character;
-        }
-
-        // for non keypress events the special maps are needed
-        if (_MAP[e.which]) {
-            return _MAP[e.which];
-        }
-
-        if (_KEYCODE_MAP[e.which]) {
-            return _KEYCODE_MAP[e.which];
-        }
-
-        // if it is not in the special map
-
-        // with keydown and keyup events the character seems to always
-        // come in as an uppercase character whether you are pressing shift
-        // or not.  we should make sure it is always lowercase for comparisons
-        return String.fromCharCode(e.which).toLowerCase();
-    }
-
-    /**
-     * checks if two arrays are equal
-     *
-     * @param {Array} modifiers1
-     * @param {Array} modifiers2
-     * @returns {boolean}
-     */
-    function _modifiersMatch(modifiers1, modifiers2) {
-        return modifiers1.sort().join(',') === modifiers2.sort().join(',');
-    }
-
-    /**
-     * takes a key event and figures out what the modifiers are
-     *
-     * @param {Event} e
-     * @returns {Array}
-     */
-    function _eventModifiers(e) {
-        var modifiers = [];
-
-        if (e.shiftKey) {
-            modifiers.push('shift');
-        }
-
-        if (e.altKey) {
-            modifiers.push('alt');
-        }
-
-        if (e.ctrlKey) {
-            modifiers.push('ctrl');
-        }
-
-        if (e.metaKey) {
-            modifiers.push('meta');
-        }
-
-        return modifiers;
-    }
-
-    /**
-     * prevents default for this event
-     *
-     * @param {Event} e
-     * @returns void
-     */
-    function _preventDefault(e) {
-        if (e.preventDefault) {
-            e.preventDefault();
-            return;
-        }
-
-        e.returnValue = false;
-    }
-
-    /**
-     * stops propogation for this event
-     *
-     * @param {Event} e
-     * @returns void
-     */
-    function _stopPropagation(e) {
-        if (e.stopPropagation) {
-            e.stopPropagation();
-            return;
-        }
-
-        e.cancelBubble = true;
-    }
-
-    /**
-     * determines if the keycode specified is a modifier key or not
-     *
-     * @param {string} key
-     * @returns {boolean}
-     */
-    function _isModifier(key) {
-        return key == 'shift' || key == 'ctrl' || key == 'alt' || key == 'meta';
-    }
-
-    /**
-     * reverses the map lookup so that we can look for specific keys
-     * to see what can and can't use keypress
-     *
-     * @return {Object}
-     */
-    function _getReverseMap() {
-        if (!_REVERSE_MAP) {
-            _REVERSE_MAP = {};
-            for (var key in _MAP) {
-
-                // pull out the numeric keypad from here cause keypress should
-                // be able to detect the keys from the character
-                if (key > 95 && key < 112) {
-                    continue;
-                }
-
-                if (_MAP.hasOwnProperty(key)) {
-                    _REVERSE_MAP[_MAP[key]] = key;
-                }
-            }
-        }
-        return _REVERSE_MAP;
-    }
-
-    /**
-     * picks the best action based on the key combination
-     *
-     * @param {string} key - character for key
-     * @param {Array} modifiers
-     * @param {string=} action passed in
-     */
-    function _pickBestAction(key, modifiers, action) {
-
-        // if no action was picked in we should try to pick the one
-        // that we think would work best for this key
-        if (!action) {
-            action = _getReverseMap()[key] ? 'keydown' : 'keypress';
-        }
-
-        // modifier keys don't work as expected with keypress,
-        // switch to keydown
-        if (action == 'keypress' && modifiers.length) {
-            action = 'keydown';
-        }
-
-        return action;
-    }
-
-    /**
-     * Converts from a string key combination to an array
-     *
-     * @param  {string} combination like "command+shift+l"
-     * @return {Array}
-     */
-    function _keysFromString(combination) {
-        if (combination === '+') {
-            return ['+'];
-        }
-
-        combination = combination.replace(/\+{2}/g, '+plus');
-        return combination.split('+');
-    }
-
-    /**
-     * Gets info for a specific key combination
-     *
-     * @param  {string} combination key combination ("command+s" or "a" or "*")
-     * @param  {string=} action
-     * @returns {Object}
-     */
-    function _getKeyInfo(combination, action) {
-        var keys;
-        var key;
-        var i;
-        var modifiers = [];
-
-        // take the keys from this pattern and figure out what the actual
-        // pattern is all about
-        keys = _keysFromString(combination);
-
-        for (i = 0; i < keys.length; ++i) {
-            key = keys[i];
-
-            // normalize key names
-            if (_SPECIAL_ALIASES[key]) {
-                key = _SPECIAL_ALIASES[key];
-            }
-
-            // if this is not a keypress event then we should
-            // be smart about using shift keys
-            // this will only work for US keyboards however
-            if (action && action != 'keypress' && _SHIFT_MAP[key]) {
-                key = _SHIFT_MAP[key];
-                modifiers.push('shift');
-            }
-
-            // if this key is a modifier then add it to the list of modifiers
-            if (_isModifier(key)) {
-                modifiers.push(key);
-            }
-        }
-
-        // depending on what the key combination is
-        // we will try to pick the best event for it
-        action = _pickBestAction(key, modifiers, action);
-
-        return {
-            key: key,
-            modifiers: modifiers,
-            action: action
-        };
-    }
-
-    function _belongsTo(element, ancestor) {
-        if (element === null || element === document) {
-            return false;
-        }
-
-        if (element === ancestor) {
-            return true;
-        }
-
-        return _belongsTo(element.parentNode, ancestor);
-    }
-
-    function Mousetrap(targetElement) {
-        var self = this;
-
-        targetElement = targetElement || document;
-
-        if (!(self instanceof Mousetrap)) {
-            return new Mousetrap(targetElement);
-        }
-
-        /**
-         * element to attach key events to
-         *
-         * @type {Element}
-         */
-        self.target = targetElement;
-
-        /**
-         * a list of all the callbacks setup via Mousetrap.bind()
-         *
-         * @type {Object}
-         */
-        self._callbacks = {};
-
-        /**
-         * direct map of string combinations to callbacks used for trigger()
-         *
-         * @type {Object}
-         */
-        self._directMap = {};
-
-        /**
-         * keeps track of what level each sequence is at since multiple
-         * sequences can start out with the same sequence
-         *
-         * @type {Object}
-         */
-        var _sequenceLevels = {};
-
-        /**
-         * variable to store the setTimeout call
-         *
-         * @type {null|number}
-         */
-        var _resetTimer;
-
-        /**
-         * temporary state where we will ignore the next keyup
-         *
-         * @type {boolean|string}
-         */
-        var _ignoreNextKeyup = false;
-
-        /**
-         * temporary state where we will ignore the next keypress
-         *
-         * @type {boolean}
-         */
-        var _ignoreNextKeypress = false;
-
-        /**
-         * are we currently inside of a sequence?
-         * type of action ("keyup" or "keydown" or "keypress") or false
-         *
-         * @type {boolean|string}
-         */
-        var _nextExpectedAction = false;
-
-        /**
-         * resets all sequence counters except for the ones passed in
-         *
-         * @param {Object} doNotReset
-         * @returns void
-         */
-        function _resetSequences(doNotReset) {
-            doNotReset = doNotReset || {};
-
-            var activeSequences = false,
-                key;
-
-            for (key in _sequenceLevels) {
-                if (doNotReset[key]) {
-                    activeSequences = true;
-                    continue;
-                }
-                _sequenceLevels[key] = 0;
-            }
-
-            if (!activeSequences) {
-                _nextExpectedAction = false;
-            }
-        }
-
-        /**
-         * finds all callbacks that match based on the keycode, modifiers,
-         * and action
-         *
-         * @param {string} character
-         * @param {Array} modifiers
-         * @param {Event|Object} e
-         * @param {string=} sequenceName - name of the sequence we are looking for
-         * @param {string=} combination
-         * @param {number=} level
-         * @returns {Array}
-         */
-        function _getMatches(character, modifiers, e, sequenceName, combination, level) {
-            var i;
-            var callback;
-            var matches = [];
-            var action = e.type;
-
-            // if there are no events related to this keycode
-            if (!self._callbacks[character]) {
-                return [];
-            }
-
-            // if a modifier key is coming up on its own we should allow it
-            if (action == 'keyup' && _isModifier(character)) {
-                modifiers = [character];
-            }
-
-            // loop through all callbacks for the key that was pressed
-            // and see if any of them match
-            for (i = 0; i < self._callbacks[character].length; ++i) {
-                callback = self._callbacks[character][i];
-
-                // if a sequence name is not specified, but this is a sequence at
-                // the wrong level then move onto the next match
-                if (!sequenceName && callback.seq && _sequenceLevels[callback.seq] != callback.level) {
-                    continue;
-                }
-
-                // if the action we are looking for doesn't match the action we got
-                // then we should keep going
-                if (action != callback.action) {
-                    continue;
-                }
-
-                // if this is a keypress event and the meta key and control key
-                // are not pressed that means that we need to only look at the
-                // character, otherwise check the modifiers as well
-                //
-                // chrome will not fire a keypress if meta or control is down
-                // safari will fire a keypress if meta or meta+shift is down
-                // firefox will fire a keypress if meta or control is down
-                if ((action == 'keypress' && !e.metaKey && !e.ctrlKey) || _modifiersMatch(modifiers, callback.modifiers)) {
-
-                    // when you bind a combination or sequence a second time it
-                    // should overwrite the first one.  if a sequenceName or
-                    // combination is specified in this call it does just that
-                    //
-                    // @todo make deleting its own method?
-                    var deleteCombo = !sequenceName && callback.combo == combination;
-                    var deleteSequence = sequenceName && callback.seq == sequenceName && callback.level == level;
-                    if (deleteCombo || deleteSequence) {
-                        self._callbacks[character].splice(i, 1);
-                    }
-
-                    matches.push(callback);
-                }
-            }
-
-            return matches;
-        }
-
-        /**
-         * actually calls the callback function
-         *
-         * if your callback function returns false this will use the jquery
-         * convention - prevent default and stop propogation on the event
-         *
-         * @param {Function} callback
-         * @param {Event} e
-         * @returns void
-         */
-        function _fireCallback(callback, e, combo, sequence) {
-
-            // if this event should not happen stop here
-            if (self.stopCallback(e, e.target || e.srcElement, combo, sequence)) {
-                return;
-            }
-
-            if (callback(e, combo) === false) {
-                _preventDefault(e);
-                _stopPropagation(e);
-            }
-        }
-
-        /**
-         * handles a character key event
-         *
-         * @param {string} character
-         * @param {Array} modifiers
-         * @param {Event} e
-         * @returns void
-         */
-        self._handleKey = function(character, modifiers, e) {
-            var callbacks = _getMatches(character, modifiers, e);
-            var i;
-            var doNotReset = {};
-            var maxLevel = 0;
-            var processedSequenceCallback = false;
-
-            // Calculate the maxLevel for sequences so we can only execute the longest callback sequence
-            for (i = 0; i < callbacks.length; ++i) {
-                if (callbacks[i].seq) {
-                    maxLevel = Math.max(maxLevel, callbacks[i].level);
-                }
-            }
-
-            // loop through matching callbacks for this key event
-            for (i = 0; i < callbacks.length; ++i) {
-
-                // fire for all sequence callbacks
-                // this is because if for example you have multiple sequences
-                // bound such as "g i" and "g t" they both need to fire the
-                // callback for matching g cause otherwise you can only ever
-                // match the first one
-                if (callbacks[i].seq) {
-
-                    // only fire callbacks for the maxLevel to prevent
-                    // subsequences from also firing
-                    //
-                    // for example 'a option b' should not cause 'option b' to fire
-                    // even though 'option b' is part of the other sequence
-                    //
-                    // any sequences that do not match here will be discarded
-                    // below by the _resetSequences call
-                    if (callbacks[i].level != maxLevel) {
-                        continue;
-                    }
-
-                    processedSequenceCallback = true;
-
-                    // keep a list of which sequences were matches for later
-                    doNotReset[callbacks[i].seq] = 1;
-                    _fireCallback(callbacks[i].callback, e, callbacks[i].combo, callbacks[i].seq);
-                    continue;
-                }
-
-                // if there were no sequence matches but we are still here
-                // that means this is a regular match so we should fire that
-                if (!processedSequenceCallback) {
-                    _fireCallback(callbacks[i].callback, e, callbacks[i].combo);
-                }
-            }
-
-            // if the key you pressed matches the type of sequence without
-            // being a modifier (ie "keyup" or "keypress") then we should
-            // reset all sequences that were not matched by this event
-            //
-            // this is so, for example, if you have the sequence "h a t" and you
-            // type "h e a r t" it does not match.  in this case the "e" will
-            // cause the sequence to reset
-            //
-            // modifier keys are ignored because you can have a sequence
-            // that contains modifiers such as "enter ctrl+space" and in most
-            // cases the modifier key will be pressed before the next key
-            //
-            // also if you have a sequence such as "ctrl+b a" then pressing the
-            // "b" key will trigger a "keypress" and a "keydown"
-            //
-            // the "keydown" is expected when there is a modifier, but the
-            // "keypress" ends up matching the _nextExpectedAction since it occurs
-            // after and that causes the sequence to reset
-            //
-            // we ignore keypresses in a sequence that directly follow a keydown
-            // for the same character
-            var ignoreThisKeypress = e.type == 'keypress' && _ignoreNextKeypress;
-            if (e.type == _nextExpectedAction && !_isModifier(character) && !ignoreThisKeypress) {
-                _resetSequences(doNotReset);
-            }
-
-            _ignoreNextKeypress = processedSequenceCallback && e.type == 'keydown';
-        };
-
-        /**
-         * handles a keydown event
-         *
-         * @param {Event} e
-         * @returns void
-         */
-        function _handleKeyEvent(e) {
-
-            // normalize e.which for key events
-            // @see http://stackoverflow.com/questions/4285627/javascript-keycode-vs-charcode-utter-confusion
-            if (typeof e.which !== 'number') {
-                e.which = e.keyCode;
-            }
-
-            var character = _characterFromEvent(e);
-
-            // no character found then stop
-            if (!character) {
-                return;
-            }
-
-            // need to use === for the character check because the character can be 0
-            if (e.type == 'keyup' && _ignoreNextKeyup === character) {
-                _ignoreNextKeyup = false;
-                return;
-            }
-
-            self.handleKey(character, _eventModifiers(e), e);
-        }
-
-        /**
-         * called to set a 1 second timeout on the specified sequence
-         *
-         * this is so after each key press in the sequence you have 1 second
-         * to press the next key before you have to start over
-         *
-         * @returns void
-         */
-        function _resetSequenceTimer() {
-            clearTimeout(_resetTimer);
-            _resetTimer = setTimeout(_resetSequences, 1000);
-        }
-
-        /**
-         * binds a key sequence to an event
-         *
-         * @param {string} combo - combo specified in bind call
-         * @param {Array} keys
-         * @param {Function} callback
-         * @param {string=} action
-         * @returns void
-         */
-        function _bindSequence(combo, keys, callback, action) {
-
-            // start off by adding a sequence level record for this combination
-            // and setting the level to 0
-            _sequenceLevels[combo] = 0;
-
-            /**
-             * callback to increase the sequence level for this sequence and reset
-             * all other sequences that were active
-             *
-             * @param {string} nextAction
-             * @returns {Function}
-             */
-            function _increaseSequence(nextAction) {
-                return function() {
-                    _nextExpectedAction = nextAction;
-                    ++_sequenceLevels[combo];
-                    _resetSequenceTimer();
-                };
-            }
-
-            /**
-             * wraps the specified callback inside of another function in order
-             * to reset all sequence counters as soon as this sequence is done
-             *
-             * @param {Event} e
-             * @returns void
-             */
-            function _callbackAndReset(e) {
-                _fireCallback(callback, e, combo);
-
-                // we should ignore the next key up if the action is key down
-                // or keypress.  this is so if you finish a sequence and
-                // release the key the final key will not trigger a keyup
-                if (action !== 'keyup') {
-                    _ignoreNextKeyup = _characterFromEvent(e);
-                }
-
-                // weird race condition if a sequence ends with the key
-                // another sequence begins with
-                setTimeout(_resetSequences, 10);
-            }
-
-            // loop through keys one at a time and bind the appropriate callback
-            // function.  for any key leading up to the final one it should
-            // increase the sequence. after the final, it should reset all sequences
-            //
-            // if an action is specified in the original bind call then that will
-            // be used throughout.  otherwise we will pass the action that the
-            // next key in the sequence should match.  this allows a sequence
-            // to mix and match keypress and keydown events depending on which
-            // ones are better suited to the key provided
-            for (var i = 0; i < keys.length; ++i) {
-                var isFinal = i + 1 === keys.length;
-                var wrappedCallback = isFinal ? _callbackAndReset : _increaseSequence(action || _getKeyInfo(keys[i + 1]).action);
-                _bindSingle(keys[i], wrappedCallback, action, combo, i);
-            }
-        }
-
-        /**
-         * binds a single keyboard combination
-         *
-         * @param {string} combination
-         * @param {Function} callback
-         * @param {string=} action
-         * @param {string=} sequenceName - name of sequence if part of sequence
-         * @param {number=} level - what part of the sequence the command is
-         * @returns void
-         */
-        function _bindSingle(combination, callback, action, sequenceName, level) {
-
-            // store a direct mapped reference for use with Mousetrap.trigger
-            self._directMap[combination + ':' + action] = callback;
-
-            // make sure multiple spaces in a row become a single space
-            combination = combination.replace(/\s+/g, ' ');
-
-            var sequence = combination.split(' ');
-            var info;
-
-            // if this pattern is a sequence of keys then run through this method
-            // to reprocess each pattern one key at a time
-            if (sequence.length > 1) {
-                _bindSequence(combination, sequence, callback, action);
-                return;
-            }
-
-            info = _getKeyInfo(combination, action);
-
-            // make sure to initialize array if this is the first time
-            // a callback is added for this key
-            self._callbacks[info.key] = self._callbacks[info.key] || [];
-
-            // remove an existing match if there is one
-            _getMatches(info.key, info.modifiers, {type: info.action}, sequenceName, combination, level);
-
-            // add this call back to the array
-            // if it is a sequence put it at the beginning
-            // if not put it at the end
-            //
-            // this is important because the way these are processed expects
-            // the sequence ones to come first
-            self._callbacks[info.key][sequenceName ? 'unshift' : 'push']({
-                callback: callback,
-                modifiers: info.modifiers,
-                action: info.action,
-                seq: sequenceName,
-                level: level,
-                combo: combination
-            });
-        }
-
-        /**
-         * binds multiple combinations to the same callback
-         *
-         * @param {Array} combinations
-         * @param {Function} callback
-         * @param {string|undefined} action
-         * @returns void
-         */
-        self._bindMultiple = function(combinations, callback, action) {
-            for (var i = 0; i < combinations.length; ++i) {
-                _bindSingle(combinations[i], callback, action);
-            }
-        };
-
-        // start!
-        _addEvent(targetElement, 'keypress', _handleKeyEvent);
-        _addEvent(targetElement, 'keydown', _handleKeyEvent);
-        _addEvent(targetElement, 'keyup', _handleKeyEvent);
-    }
-
-    /**
-     * binds an event to mousetrap
-     *
-     * can be a single key, a combination of keys separated with +,
-     * an array of keys, or a sequence of keys separated by spaces
-     *
-     * be sure to list the modifier keys first to make sure that the
-     * correct key ends up getting bound (the last key in the pattern)
-     *
-     * @param {string|Array} keys
-     * @param {Function} callback
-     * @param {string=} action - 'keypress', 'keydown', or 'keyup'
-     * @returns void
-     */
-    Mousetrap.prototype.bind = function(keys, callback, action) {
-        var self = this;
-        keys = keys instanceof Array ? keys : [keys];
-        self._bindMultiple.call(self, keys, callback, action);
-        return self;
-    };
-
-    /**
-     * unbinds an event to mousetrap
-     *
-     * the unbinding sets the callback function of the specified key combo
-     * to an empty function and deletes the corresponding key in the
-     * _directMap dict.
-     *
-     * TODO: actually remove this from the _callbacks dictionary instead
-     * of binding an empty function
-     *
-     * the keycombo+action has to be exactly the same as
-     * it was defined in the bind method
-     *
-     * @param {string|Array} keys
-     * @param {string} action
-     * @returns void
-     */
-    Mousetrap.prototype.unbind = function(keys, action) {
-        var self = this;
-        return self.bind.call(self, keys, function() {}, action);
-    };
-
-    /**
-     * triggers an event that has already been bound
-     *
-     * @param {string} keys
-     * @param {string=} action
-     * @returns void
-     */
-    Mousetrap.prototype.trigger = function(keys, action) {
-        var self = this;
-        if (self._directMap[keys + ':' + action]) {
-            self._directMap[keys + ':' + action]({}, keys);
-        }
-        return self;
-    };
-
-    /**
-     * resets the library back to its initial state.  this is useful
-     * if you want to clear out the current keyboard shortcuts and bind
-     * new ones - for example if you switch to another page
-     *
-     * @returns void
-     */
-    Mousetrap.prototype.reset = function() {
-        var self = this;
-        self._callbacks = {};
-        self._directMap = {};
-        return self;
-    };
-
-    /**
-     * should we stop this event before firing off callbacks
-     *
-     * @param {Event} e
-     * @param {Element} element
-     * @return {boolean}
-     */
-    Mousetrap.prototype.stopCallback = function(e, element) {
-        var self = this;
-
-        // if the element has the class "mousetrap" then no need to stop
-        if ((' ' + element.className + ' ').indexOf(' mousetrap ') > -1) {
-            return false;
-        }
-
-        if (_belongsTo(element, self.target)) {
-            return false;
-        }
-
-        // stop for input, select, and textarea
-        return element.tagName == 'INPUT' || element.tagName == 'SELECT' || element.tagName == 'TEXTAREA' || element.isContentEditable;
-    };
-
-    /**
-     * exposes _handleKey publicly so it can be overwritten by extensions
-     */
-    Mousetrap.prototype.handleKey = function() {
-        var self = this;
-        return self._handleKey.apply(self, arguments);
-    };
-
-    /**
-     * Init the global mousetrap functions
-     *
-     * This method is needed to allow the global mousetrap functions to work
-     * now that mousetrap is a constructor function.
-     */
-    Mousetrap.init = function() {
-        var documentMousetrap = Mousetrap(document);
-        for (var method in documentMousetrap) {
-            if (method.charAt(0) !== '_') {
-                Mousetrap[method] = (function(method) {
-                    return function() {
-                        return documentMousetrap[method].apply(documentMousetrap, arguments);
-                    };
-                } (method));
-            }
-        }
-    };
-
-    Mousetrap.init();
-
-    // expose mousetrap to the global object
-    window.Mousetrap = Mousetrap;
-
-    // expose as a common js module
-    if (typeof module !== 'undefined' && module.exports) {
-        module.exports = Mousetrap;
-    }
-
-    // expose mousetrap as an AMD module
-    if (typeof define === 'function' && define.amd) {
-        define(function() {
-            return Mousetrap;
-        });
-    }
-}) (window, document);
-
-},{}],4:[function(require,module,exports){
-(function (process){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// resolves . and .. elements in a path array with directory names there
-// must be no slashes, empty elements, or device names (c:\) in the array
-// (so also no leading and trailing slashes - it does not distinguish
-// relative and absolute paths)
-function normalizeArray(parts, allowAboveRoot) {
-  // if the path tries to go above the root, `up` ends up > 0
-  var up = 0;
-  for (var i = parts.length - 1; i >= 0; i--) {
-    var last = parts[i];
-    if (last === '.') {
-      parts.splice(i, 1);
-    } else if (last === '..') {
-      parts.splice(i, 1);
-      up++;
-    } else if (up) {
-      parts.splice(i, 1);
-      up--;
-    }
-  }
-
-  // if the path is allowed to go above the root, restore leading ..s
-  if (allowAboveRoot) {
-    for (; up--; up) {
-      parts.unshift('..');
-    }
-  }
-
-  return parts;
-}
-
-// Split a filename into [root, dir, basename, ext], unix version
-// 'root' is just a slash, or nothing.
-var splitPathRe =
-    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
-var splitPath = function(filename) {
-  return splitPathRe.exec(filename).slice(1);
-};
-
-// path.resolve([from ...], to)
-// posix version
-exports.resolve = function() {
-  var resolvedPath = '',
-      resolvedAbsolute = false;
-
-  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
-    var path = (i >= 0) ? arguments[i] : process.cwd();
-
-    // Skip empty and invalid entries
-    if (typeof path !== 'string') {
-      throw new TypeError('Arguments to path.resolve must be strings');
-    } else if (!path) {
-      continue;
-    }
-
-    resolvedPath = path + '/' + resolvedPath;
-    resolvedAbsolute = path.charAt(0) === '/';
-  }
-
-  // At this point the path should be resolved to a full absolute path, but
-  // handle relative paths to be safe (might happen when process.cwd() fails)
-
-  // Normalize the path
-  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
-    return !!p;
-  }), !resolvedAbsolute).join('/');
-
-  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
-};
-
-// path.normalize(path)
-// posix version
-exports.normalize = function(path) {
-  var isAbsolute = exports.isAbsolute(path),
-      trailingSlash = substr(path, -1) === '/';
-
-  // Normalize the path
-  path = normalizeArray(filter(path.split('/'), function(p) {
-    return !!p;
-  }), !isAbsolute).join('/');
-
-  if (!path && !isAbsolute) {
-    path = '.';
-  }
-  if (path && trailingSlash) {
-    path += '/';
-  }
-
-  return (isAbsolute ? '/' : '') + path;
-};
-
-// posix version
-exports.isAbsolute = function(path) {
-  return path.charAt(0) === '/';
-};
-
-// posix version
-exports.join = function() {
-  var paths = Array.prototype.slice.call(arguments, 0);
-  return exports.normalize(filter(paths, function(p, index) {
-    if (typeof p !== 'string') {
-      throw new TypeError('Arguments to path.join must be strings');
-    }
-    return p;
-  }).join('/'));
-};
-
-
-// path.relative(from, to)
-// posix version
-exports.relative = function(from, to) {
-  from = exports.resolve(from).substr(1);
-  to = exports.resolve(to).substr(1);
-
-  function trim(arr) {
-    var start = 0;
-    for (; start < arr.length; start++) {
-      if (arr[start] !== '') break;
-    }
-
-    var end = arr.length - 1;
-    for (; end >= 0; end--) {
-      if (arr[end] !== '') break;
-    }
-
-    if (start > end) return [];
-    return arr.slice(start, end - start + 1);
-  }
-
-  var fromParts = trim(from.split('/'));
-  var toParts = trim(to.split('/'));
-
-  var length = Math.min(fromParts.length, toParts.length);
-  var samePartsLength = length;
-  for (var i = 0; i < length; i++) {
-    if (fromParts[i] !== toParts[i]) {
-      samePartsLength = i;
-      break;
-    }
-  }
-
-  var outputParts = [];
-  for (var i = samePartsLength; i < fromParts.length; i++) {
-    outputParts.push('..');
-  }
-
-  outputParts = outputParts.concat(toParts.slice(samePartsLength));
-
-  return outputParts.join('/');
-};
-
-exports.sep = '/';
-exports.delimiter = ':';
-
-exports.dirname = function(path) {
-  var result = splitPath(path),
-      root = result[0],
-      dir = result[1];
-
-  if (!root && !dir) {
-    // No dirname whatsoever
-    return '.';
-  }
-
-  if (dir) {
-    // It has a dirname, strip trailing slash
-    dir = dir.substr(0, dir.length - 1);
-  }
-
-  return root + dir;
-};
-
-
-exports.basename = function(path, ext) {
-  var f = splitPath(path)[2];
-  // TODO: make this comparison case-insensitive on windows?
-  if (ext && f.substr(-1 * ext.length) === ext) {
-    f = f.substr(0, f.length - ext.length);
-  }
-  return f;
-};
-
-
-exports.extname = function(path) {
-  return splitPath(path)[3];
-};
-
-function filter (xs, f) {
-    if (xs.filter) return xs.filter(f);
-    var res = [];
-    for (var i = 0; i < xs.length; i++) {
-        if (f(xs[i], i, xs)) res.push(xs[i]);
-    }
-    return res;
-}
-
-// String.prototype.substr - negative index don't work in IE8
-var substr = 'ab'.substr(-1) === 'b'
-    ? function (str, start, len) { return str.substr(start, len) }
-    : function (str, start, len) {
-        if (start < 0) start = str.length + start;
-        return str.substr(start, len);
-    }
-;
-
-}).call(this,require('_process'))
-},{"_process":5}],5:[function(require,module,exports){
-// shim for using process in browser
-
-var process = module.exports = {};
-var queue = [];
-var draining = false;
-var currentQueue;
-var queueIndex = -1;
-
-function cleanUpNextTick() {
-    draining = false;
-    if (currentQueue.length) {
-        queue = currentQueue.concat(queue);
-    } else {
-        queueIndex = -1;
-    }
-    if (queue.length) {
-        drainQueue();
-    }
-}
-
-function drainQueue() {
-    if (draining) {
-        return;
-    }
-    var timeout = setTimeout(cleanUpNextTick);
-    draining = true;
-
-    var len = queue.length;
-    while(len) {
-        currentQueue = queue;
-        queue = [];
-        while (++queueIndex < len) {
-            if (currentQueue) {
-                currentQueue[queueIndex].run();
-            }
-        }
-        queueIndex = -1;
-        len = queue.length;
-    }
-    currentQueue = null;
-    draining = false;
-    clearTimeout(timeout);
-}
-
-process.nextTick = function (fun) {
-    var args = new Array(arguments.length - 1);
-    if (arguments.length > 1) {
-        for (var i = 1; i < arguments.length; i++) {
-            args[i - 1] = arguments[i];
-        }
-    }
-    queue.push(new Item(fun, args));
-    if (queue.length === 1 && !draining) {
-        setTimeout(drainQueue, 0);
-    }
-};
-
-// v8 likes predictible objects
-function Item(fun, array) {
-    this.fun = fun;
-    this.array = array;
-}
-Item.prototype.run = function () {
-    this.fun.apply(null, this.array);
-};
-process.title = 'browser';
-process.browser = true;
-process.env = {};
-process.argv = [];
-process.version = ''; // empty string to avoid regexp issues
-process.versions = {};
-
-function noop() {}
-
-process.on = noop;
-process.addListener = noop;
-process.once = noop;
-process.off = noop;
-process.removeListener = noop;
-process.removeAllListeners = noop;
-process.emit = noop;
-
-process.binding = function (name) {
-    throw new Error('process.binding is not supported');
-};
-
-process.cwd = function () { return '/' };
-process.chdir = function (dir) {
-    throw new Error('process.chdir is not supported');
-};
-process.umask = function() { return 0; };
-
-},{}],6:[function(require,module,exports){
-(function (global){
-/*! https://mths.be/punycode v1.3.2 by @mathias */
-;(function(root) {
-
-	/** Detect free variables */
-	var freeExports = typeof exports == 'object' && exports &&
-		!exports.nodeType && exports;
-	var freeModule = typeof module == 'object' && module &&
-		!module.nodeType && module;
-	var freeGlobal = typeof global == 'object' && global;
-	if (
-		freeGlobal.global === freeGlobal ||
-		freeGlobal.window === freeGlobal ||
-		freeGlobal.self === freeGlobal
-	) {
-		root = freeGlobal;
-	}
-
-	/**
-	 * The `punycode` object.
-	 * @name punycode
-	 * @type Object
-	 */
-	var punycode,
-
-	/** Highest positive signed 32-bit float value */
-	maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1
-
-	/** Bootstring parameters */
-	base = 36,
-	tMin = 1,
-	tMax = 26,
-	skew = 38,
-	damp = 700,
-	initialBias = 72,
-	initialN = 128, // 0x80
-	delimiter = '-', // '\x2D'
-
-	/** Regular expressions */
-	regexPunycode = /^xn--/,
-	regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars
-	regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators
-
-	/** Error messages */
-	errors = {
-		'overflow': 'Overflow: input needs wider integers to process',
-		'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
-		'invalid-input': 'Invalid input'
-	},
-
-	/** Convenience shortcuts */
-	baseMinusTMin = base - tMin,
-	floor = Math.floor,
-	stringFromCharCode = String.fromCharCode,
-
-	/** Temporary variable */
-	key;
-
-	/*--------------------------------------------------------------------------*/
-
-	/**
-	 * A generic error utility function.
-	 * @private
-	 * @param {String} type The error type.
-	 * @returns {Error} Throws a `RangeError` with the applicable error message.
-	 */
-	function error(type) {
-		throw RangeError(errors[type]);
-	}
-
-	/**
-	 * A generic `Array#map` utility function.
-	 * @private
-	 * @param {Array} array The array to iterate over.
-	 * @param {Function} callback The function that gets called for every array
-	 * item.
-	 * @returns {Array} A new array of values returned by the callback function.
-	 */
-	function map(array, fn) {
-		var length = array.length;
-		var result = [];
-		while (length--) {
-			result[length] = fn(array[length]);
-		}
-		return result;
-	}
-
-	/**
-	 * A simple `Array#map`-like wrapper to work with domain name strings or email
-	 * addresses.
-	 * @private
-	 * @param {String} domain The domain name or email address.
-	 * @param {Function} callback The function that gets called for every
-	 * character.
-	 * @returns {Array} A new string of characters returned by the callback
-	 * function.
-	 */
-	function mapDomain(string, fn) {
-		var parts = string.split('@');
-		var result = '';
-		if (parts.length > 1) {
-			// In email addresses, only the domain name should be punycoded. Leave
-			// the local part (i.e. everything up to `@`) intact.
-			result = parts[0] + '@';
-			string = parts[1];
-		}
-		// Avoid `split(regex)` for IE8 compatibility. See #17.
-		string = string.replace(regexSeparators, '\x2E');
-		var labels = string.split('.');
-		var encoded = map(labels, fn).join('.');
-		return result + encoded;
-	}
-
-	/**
-	 * Creates an array containing the numeric code points of each Unicode
-	 * character in the string. While JavaScript uses UCS-2 internally,
-	 * this function will convert a pair of surrogate halves (each of which
-	 * UCS-2 exposes as separate characters) into a single code point,
-	 * matching UTF-16.
-	 * @see `punycode.ucs2.encode`
-	 * @see <https://mathiasbynens.be/notes/javascript-encoding>
-	 * @memberOf punycode.ucs2
-	 * @name decode
-	 * @param {String} string The Unicode input string (UCS-2).
-	 * @returns {Array} The new array of code points.
-	 */
-	function ucs2decode(string) {
-		var output = [],
-		    counter = 0,
-		    length = string.length,
-		    value,
-		    extra;
-		while (counter < length) {
-			value = string.charCodeAt(counter++);
-			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
-				// high surrogate, and there is a next character
-				extra = string.charCodeAt(counter++);
-				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
-					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
-				} else {
-					// unmatched surrogate; only append this code unit, in case the next
-					// code unit is the high surrogate of a surrogate pair
-					output.push(value);
-					counter--;
-				}
-			} else {
-				output.push(value);
-			}
-		}
-		return output;
-	}
-
-	/**
-	 * Creates a string based on an array of numeric code points.
-	 * @see `punycode.ucs2.decode`
-	 * @memberOf punycode.ucs2
-	 * @name encode
-	 * @param {Array} codePoints The array of numeric code points.
-	 * @returns {String} The new Unicode string (UCS-2).
-	 */
-	function ucs2encode(array) {
-		return map(array, function(value) {
-			var output = '';
-			if (value > 0xFFFF) {
-				value -= 0x10000;
-				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
-				value = 0xDC00 | value & 0x3FF;
-			}
-			output += stringFromCharCode(value);
-			return output;
-		}).join('');
-	}
-
-	/**
-	 * Converts a basic code point into a digit/integer.
-	 * @see `digitToBasic()`
-	 * @private
-	 * @param {Number} codePoint The basic numeric code point value.
-	 * @returns {Number} The numeric value of a basic code point (for use in
-	 * representing integers) in the range `0` to `base - 1`, or `base` if
-	 * the code point does not represent a value.
-	 */
-	function basicToDigit(codePoint) {
-		if (codePoint - 48 < 10) {
-			return codePoint - 22;
-		}
-		if (codePoint - 65 < 26) {
-			return codePoint - 65;
-		}
-		if (codePoint - 97 < 26) {
-			return codePoint - 97;
-		}
-		return base;
-	}
-
-	/**
-	 * Converts a digit/integer into a basic code point.
-	 * @see `basicToDigit()`
-	 * @private
-	 * @param {Number} digit The numeric value of a basic code point.
-	 * @returns {Number} The basic code point whose value (when used for
-	 * representing integers) is `digit`, which needs to be in the range
-	 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
-	 * used; else, the lowercase form is used. The behavior is undefined
-	 * if `flag` is non-zero and `digit` has no uppercase form.
-	 */
-	function digitToBasic(digit, flag) {
-		//  0..25 map to ASCII a..z or A..Z
-		// 26..35 map to ASCII 0..9
-		return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
-	}
-
-	/**
-	 * Bias adaptation function as per section 3.4 of RFC 3492.
-	 * http://tools.ietf.org/html/rfc3492#section-3.4
-	 * @private
-	 */
-	function adapt(delta, numPoints, firstTime) {
-		var k = 0;
-		delta = firstTime ? floor(delta / damp) : delta >> 1;
-		delta += floor(delta / numPoints);
-		for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {
-			delta = floor(delta / baseMinusTMin);
-		}
-		return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
-	}
-
-	/**
-	 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
-	 * symbols.
-	 * @memberOf punycode
-	 * @param {String} input The Punycode string of ASCII-only symbols.
-	 * @returns {String} The resulting string of Unicode symbols.
-	 */
-	function decode(input) {
-		// Don't use UCS-2
-		var output = [],
-		    inputLength = input.length,
-		    out,
-		    i = 0,
-		    n = initialN,
-		    bias = initialBias,
-		    basic,
-		    j,
-		    index,
-		    oldi,
-		    w,
-		    k,
-		    digit,
-		    t,
-		    /** Cached calculation results */
-		    baseMinusT;
-
-		// Handle the basic code points: let `basic` be the number of input code
-		// points before the last delimiter, or `0` if there is none, then copy
-		// the first basic code points to the output.
-
-		basic = input.lastIndexOf(delimiter);
-		if (basic < 0) {
-			basic = 0;
-		}
-
-		for (j = 0; j < basic; ++j) {
-			// if it's not a basic code point
-			if (input.charCodeAt(j) >= 0x80) {
-				error('not-basic');
-			}
-			output.push(input.charCodeAt(j));
-		}
-
-		// Main decoding loop: start just after the last delimiter if any basic code
-		// points were copied; start at the beginning otherwise.
-
-		for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {
-
-			// `index` is the index of the next character to be consumed.
-			// Decode a generalized variable-length integer into `delta`,
-			// which gets added to `i`. The overflow checking is easier
-			// if we increase `i` as we go, then subtract off its starting
-			// value at the end to obtain `delta`.
-			for (oldi = i, w = 1, k = base; /* no condition */; k += base) {
-
-				if (index >= inputLength) {
-					error('invalid-input');
-				}
-
-				digit = basicToDigit(input.charCodeAt(index++));
-
-				if (digit >= base || digit > floor((maxInt - i) / w)) {
-					error('overflow');
-				}
-
-				i += digit * w;
-				t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
-
-				if (digit < t) {
-					break;
-				}
-
-				baseMinusT = base - t;
-				if (w > floor(maxInt / baseMinusT)) {
-					error('overflow');
-				}
-
-				w *= baseMinusT;
-
-			}
-
-			out = output.length + 1;
-			bias = adapt(i - oldi, out, oldi == 0);
-
-			// `i` was supposed to wrap around from `out` to `0`,
-			// incrementing `n` each time, so we'll fix that now:
-			if (floor(i / out) > maxInt - n) {
-				error('overflow');
-			}
-
-			n += floor(i / out);
-			i %= out;
-
-			// Insert `n` at position `i` of the output
-			output.splice(i++, 0, n);
-
-		}
-
-		return ucs2encode(output);
-	}
-
-	/**
-	 * Converts a string of Unicode symbols (e.g. a domain name label) to a
-	 * Punycode string of ASCII-only symbols.
-	 * @memberOf punycode
-	 * @param {String} input The string of Unicode symbols.
-	 * @returns {String} The resulting Punycode string of ASCII-only symbols.
-	 */
-	function encode(input) {
-		var n,
-		    delta,
-		    handledCPCount,
-		    basicLength,
-		    bias,
-		    j,
-		    m,
-		    q,
-		    k,
-		    t,
-		    currentValue,
-		    output = [],
-		    /** `inputLength` will hold the number of code points in `input`. */
-		    inputLength,
-		    /** Cached calculation results */
-		    handledCPCountPlusOne,
-		    baseMinusT,
-		    qMinusT;
-
-		// Convert the input in UCS-2 to Unicode
-		input = ucs2decode(input);
-
-		// Cache the length
-		inputLength = input.length;
-
-		// Initialize the state
-		n = initialN;
-		delta = 0;
-		bias = initialBias;
-
-		// Handle the basic code points
-		for (j = 0; j < inputLength; ++j) {
-			currentValue = input[j];
-			if (currentValue < 0x80) {
-				output.push(stringFromCharCode(currentValue));
-			}
-		}
-
-		handledCPCount = basicLength = output.length;
-
-		// `handledCPCount` is the number of code points that have been handled;
-		// `basicLength` is the number of basic code points.
-
-		// Finish the basic string - if it is not empty - with a delimiter
-		if (basicLength) {
-			output.push(delimiter);
-		}
-
-		// Main encoding loop:
-		while (handledCPCount < inputLength) {
-
-			// All non-basic code points < n have been handled already. Find the next
-			// larger one:
-			for (m = maxInt, j = 0; j < inputLength; ++j) {
-				currentValue = input[j];
-				if (currentValue >= n && currentValue < m) {
-					m = currentValue;
-				}
-			}
-
-			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
-			// but guard against overflow
-			handledCPCountPlusOne = handledCPCount + 1;
-			if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
-				error('overflow');
-			}
-
-			delta += (m - n) * handledCPCountPlusOne;
-			n = m;
-
-			for (j = 0; j < inputLength; ++j) {
-				currentValue = input[j];
-
-				if (currentValue < n && ++delta > maxInt) {
-					error('overflow');
-				}
-
-				if (currentValue == n) {
-					// Represent delta as a generalized variable-length integer
-					for (q = delta, k = base; /* no condition */; k += base) {
-						t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);
-						if (q < t) {
-							break;
-						}
-						qMinusT = q - t;
-						baseMinusT = base - t;
-						output.push(
-							stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))
-						);
-						q = floor(qMinusT / baseMinusT);
-					}
-
-					output.push(stringFromCharCode(digitToBasic(q, 0)));
-					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
-					delta = 0;
-					++handledCPCount;
-				}
-			}
-
-			++delta;
-			++n;
-
-		}
-		return output.join('');
-	}
-
-	/**
-	 * Converts a Punycode string representing a domain name or an email address
-	 * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
-	 * it doesn't matter if you call it on a string that has already been
-	 * converted to Unicode.
-	 * @memberOf punycode
-	 * @param {String} input The Punycoded domain name or email address to
-	 * convert to Unicode.
-	 * @returns {String} The Unicode representation of the given Punycode
-	 * string.
-	 */
-	function toUnicode(input) {
-		return mapDomain(input, function(string) {
-			return regexPunycode.test(string)
-				? decode(string.slice(4).toLowerCase())
-				: string;
-		});
-	}
-
-	/**
-	 * Converts a Unicode string representing a domain name or an email address to
-	 * Punycode. Only the non-ASCII parts of the domain name will be converted,
-	 * i.e. it doesn't matter if you call it with a domain that's already in
-	 * ASCII.
-	 * @memberOf punycode
-	 * @param {String} input The domain name or email address to convert, as a
-	 * Unicode string.
-	 * @returns {String} The Punycode representation of the given domain name or
-	 * email address.
-	 */
-	function toASCII(input) {
-		return mapDomain(input, function(string) {
-			return regexNonASCII.test(string)
-				? 'xn--' + encode(string)
-				: string;
-		});
-	}
-
-	/*--------------------------------------------------------------------------*/
-
-	/** Define the public API */
-	punycode = {
-		/**
-		 * A string representing the current Punycode.js version number.
-		 * @memberOf punycode
-		 * @type String
-		 */
-		'version': '1.3.2',
-		/**
-		 * An object of methods to convert from JavaScript's internal character
-		 * representation (UCS-2) to Unicode code points, and back.
-		 * @see <https://mathiasbynens.be/notes/javascript-encoding>
-		 * @memberOf punycode
-		 * @type Object
-		 */
-		'ucs2': {
-			'decode': ucs2decode,
-			'encode': ucs2encode
-		},
-		'decode': decode,
-		'encode': encode,
-		'toASCII': toASCII,
-		'toUnicode': toUnicode
-	};
-
-	/** Expose `punycode` */
-	// Some AMD build optimizers, like r.js, check for specific condition patterns
-	// like the following:
-	if (
-		typeof define == 'function' &&
-		typeof define.amd == 'object' &&
-		define.amd
-	) {
-		define('punycode', function() {
-			return punycode;
-		});
-	} else if (freeExports && freeModule) {
-		if (module.exports == freeExports) { // in Node.js or RingoJS v0.8.0+
-			freeModule.exports = punycode;
-		} else { // in Narwhal or RingoJS v0.7.0-
-			for (key in punycode) {
-				punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);
-			}
-		}
-	} else { // in Rhino or a web browser
-		root.punycode = punycode;
-	}
-
-}(this));
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{}],7:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-'use strict';
-
-// If obj.hasOwnProperty has been overridden, then calling
-// obj.hasOwnProperty(prop) will break.
-// See: https://github.com/joyent/node/issues/1707
-function hasOwnProperty(obj, prop) {
-  return Object.prototype.hasOwnProperty.call(obj, prop);
-}
-
-module.exports = function(qs, sep, eq, options) {
-  sep = sep || '&';
-  eq = eq || '=';
-  var obj = {};
-
-  if (typeof qs !== 'string' || qs.length === 0) {
-    return obj;
-  }
-
-  var regexp = /\+/g;
-  qs = qs.split(sep);
-
-  var maxKeys = 1000;
-  if (options && typeof options.maxKeys === 'number') {
-    maxKeys = options.maxKeys;
-  }
-
-  var len = qs.length;
-  // maxKeys <= 0 means that we should not limit keys count
-  if (maxKeys > 0 && len > maxKeys) {
-    len = maxKeys;
-  }
-
-  for (var i = 0; i < len; ++i) {
-    var x = qs[i].replace(regexp, '%20'),
-        idx = x.indexOf(eq),
-        kstr, vstr, k, v;
-
-    if (idx >= 0) {
-      kstr = x.substr(0, idx);
-      vstr = x.substr(idx + 1);
-    } else {
-      kstr = x;
-      vstr = '';
-    }
-
-    k = decodeURIComponent(kstr);
-    v = decodeURIComponent(vstr);
-
-    if (!hasOwnProperty(obj, k)) {
-      obj[k] = v;
-    } else if (isArray(obj[k])) {
-      obj[k].push(v);
-    } else {
-      obj[k] = [obj[k], v];
-    }
-  }
-
-  return obj;
-};
-
-var isArray = Array.isArray || function (xs) {
-  return Object.prototype.toString.call(xs) === '[object Array]';
-};
-
-},{}],8:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-'use strict';
-
-var stringifyPrimitive = function(v) {
-  switch (typeof v) {
-    case 'string':
-      return v;
-
-    case 'boolean':
-      return v ? 'true' : 'false';
-
-    case 'number':
-      return isFinite(v) ? v : '';
-
-    default:
-      return '';
-  }
-};
-
-module.exports = function(obj, sep, eq, name) {
-  sep = sep || '&';
-  eq = eq || '=';
-  if (obj === null) {
-    obj = undefined;
-  }
-
-  if (typeof obj === 'object') {
-    return map(objectKeys(obj), function(k) {
-      var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;
-      if (isArray(obj[k])) {
-        return map(obj[k], function(v) {
-          return ks + encodeURIComponent(stringifyPrimitive(v));
-        }).join(sep);
-      } else {
-        return ks + encodeURIComponent(stringifyPrimitive(obj[k]));
-      }
-    }).join(sep);
-
-  }
-
-  if (!name) return '';
-  return encodeURIComponent(stringifyPrimitive(name)) + eq +
-         encodeURIComponent(stringifyPrimitive(obj));
-};
-
-var isArray = Array.isArray || function (xs) {
-  return Object.prototype.toString.call(xs) === '[object Array]';
-};
-
-function map (xs, f) {
-  if (xs.map) return xs.map(f);
-  var res = [];
-  for (var i = 0; i < xs.length; i++) {
-    res.push(f(xs[i], i));
-  }
-  return res;
-}
-
-var objectKeys = Object.keys || function (obj) {
-  var res = [];
-  for (var key in obj) {
-    if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key);
-  }
-  return res;
-};
-
-},{}],9:[function(require,module,exports){
-'use strict';
-
-exports.decode = exports.parse = require('./decode');
-exports.encode = exports.stringify = require('./encode');
-
-},{"./decode":7,"./encode":8}],10:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-var punycode = require('punycode');
-
-exports.parse = urlParse;
-exports.resolve = urlResolve;
-exports.resolveObject = urlResolveObject;
-exports.format = urlFormat;
-
-exports.Url = Url;
-
-function Url() {
-  this.protocol = null;
-  this.slashes = null;
-  this.auth = null;
-  this.host = null;
-  this.port = null;
-  this.hostname = null;
-  this.hash = null;
-  this.search = null;
-  this.query = null;
-  this.pathname = null;
-  this.path = null;
-  this.href = null;
-}
-
-// Reference: RFC 3986, RFC 1808, RFC 2396
-
-// define these here so at least they only have to be
-// compiled once on the first module load.
-var protocolPattern = /^([a-z0-9.+-]+:)/i,
-    portPattern = /:[0-9]*$/,
-
-    // RFC 2396: characters reserved for delimiting URLs.
-    // We actually just auto-escape these.
-    delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'],
-
-    // RFC 2396: characters not allowed for various reasons.
-    unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims),
-
-    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.
-    autoEscape = ['\''].concat(unwise),
-    // Characters that are never ever allowed in a hostname.
-    // Note that any invalid chars are also handled, but these
-    // are the ones that are *expected* to be seen, so we fast-path
-    // them.
-    nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),
-    hostEndingChars = ['/', '?', '#'],
-    hostnameMaxLen = 255,
-    hostnamePartPattern = /^[a-z0-9A-Z_-]{0,63}$/,
-    hostnamePartStart = /^([a-z0-9A-Z_-]{0,63})(.*)$/,
-    // protocols that can allow "unsafe" and "unwise" chars.
-    unsafeProtocol = {
-      'javascript': true,
-      'javascript:': true
-    },
-    // protocols that never have a hostname.
-    hostlessProtocol = {
-      'javascript': true,
-      'javascript:': true
-    },
-    // protocols that always contain a // bit.
-    slashedProtocol = {
-      'http': true,
-      'https': true,
-      'ftp': true,
-      'gopher': true,
-      'file': true,
-      'http:': true,
-      'https:': true,
-      'ftp:': true,
-      'gopher:': true,
-      'file:': true
-    },
-    querystring = require('querystring');
-
-function urlParse(url, parseQueryString, slashesDenoteHost) {
-  if (url && isObject(url) && url instanceof Url) return url;
-
-  var u = new Url;
-  u.parse(url, parseQueryString, slashesDenoteHost);
-  return u;
-}
-
-Url.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {
-  if (!isString(url)) {
-    throw new TypeError("Parameter 'url' must be a string, not " + typeof url);
-  }
-
-  var rest = url;
-
-  // trim before proceeding.
-  // This is to support parse stuff like "  http://foo.com  \n"
-  rest = rest.trim();
-
-  var proto = protocolPattern.exec(rest);
-  if (proto) {
-    proto = proto[0];
-    var lowerProto = proto.toLowerCase();
-    this.protocol = lowerProto;
-    rest = rest.substr(proto.length);
-  }
-
-  // figure out if it's got a host
-  // user@server is *always* interpreted as a hostname, and url
-  // resolution will treat //foo/bar as host=foo,path=bar because that's
-  // how the browser resolves relative URLs.
-  if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
-    var slashes = rest.substr(0, 2) === '//';
-    if (slashes && !(proto && hostlessProtocol[proto])) {
-      rest = rest.substr(2);
-      this.slashes = true;
-    }
-  }
-
-  if (!hostlessProtocol[proto] &&
-      (slashes || (proto && !slashedProtocol[proto]))) {
-
-    // there's a hostname.
-    // the first instance of /, ?, ;, or # ends the host.
-    //
-    // If there is an @ in the hostname, then non-host chars *are* allowed
-    // to the left of the last @ sign, unless some host-ending character
-    // comes *before* the @-sign.
-    // URLs are obnoxious.
-    //
-    // ex:
-    // http://a@b@c/ => user:a@b host:c
-    // http://a@b?@c => user:a host:c path:/?@c
-
-    // v0.12 TODO(isaacs): This is not quite how Chrome does things.
-    // Review our test case against browsers more comprehensively.
-
-    // find the first instance of any hostEndingChars
-    var hostEnd = -1;
-    for (var i = 0; i < hostEndingChars.length; i++) {
-      var hec = rest.indexOf(hostEndingChars[i]);
-      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
-        hostEnd = hec;
-    }
-
-    // at this point, either we have an explicit point where the
-    // auth portion cannot go past, or the last @ char is the decider.
-    var auth, atSign;
-    if (hostEnd === -1) {
-      // atSign can be anywhere.
-      atSign = rest.lastIndexOf('@');
-    } else {
-      // atSign must be in auth portion.
-      // http://a@b/c@d => host:b auth:a path:/c@d
-      atSign = rest.lastIndexOf('@', hostEnd);
-    }
-
-    // Now we have a portion which is definitely the auth.
-    // Pull that off.
-    if (atSign !== -1) {
-      auth = rest.slice(0, atSign);
-      rest = rest.slice(atSign + 1);
-      this.auth = decodeURIComponent(auth);
-    }
-
-    // the host is the remaining to the left of the first non-host char
-    hostEnd = -1;
-    for (var i = 0; i < nonHostChars.length; i++) {
-      var hec = rest.indexOf(nonHostChars[i]);
-      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
-        hostEnd = hec;
-    }
-    // if we still have not hit it, then the entire thing is a host.
-    if (hostEnd === -1)
-      hostEnd = rest.length;
-
-    this.host = rest.slice(0, hostEnd);
-    rest = rest.slice(hostEnd);
-
-    // pull out port.
-    this.parseHost();
-
-    // we've indicated that there is a hostname,
-    // so even if it's empty, it has to be present.
-    this.hostname = this.hostname || '';
-
-    // if hostname begins with [ and ends with ]
-    // assume that it's an IPv6 address.
-    var ipv6Hostname = this.hostname[0] === '[' &&
-        this.hostname[this.hostname.length - 1] === ']';
-
-    // validate a little.
-    if (!ipv6Hostname) {
-      var hostparts = this.hostname.split(/\./);
-      for (var i = 0, l = hostparts.length; i < l; i++) {
-        var part = hostparts[i];
-        if (!part) continue;
-        if (!part.match(hostnamePartPattern)) {
-          var newpart = '';
-          for (var j = 0, k = part.length; j < k; j++) {
-            if (part.charCodeAt(j) > 127) {
-              // we replace non-ASCII char with a temporary placeholder
-              // we need this to make sure size of hostname is not
-              // broken by replacing non-ASCII by nothing
-              newpart += 'x';
-            } else {
-              newpart += part[j];
-            }
-          }
-          // we test again with ASCII char only
-          if (!newpart.match(hostnamePartPattern)) {
-            var validParts = hostparts.slice(0, i);
-            var notHost = hostparts.slice(i + 1);
-            var bit = part.match(hostnamePartStart);
-            if (bit) {
-              validParts.push(bit[1]);
-              notHost.unshift(bit[2]);
-            }
-            if (notHost.length) {
-              rest = '/' + notHost.join('.') + rest;
-            }
-            this.hostname = validParts.join('.');
-            break;
-          }
-        }
-      }
-    }
-
-    if (this.hostname.length > hostnameMaxLen) {
-      this.hostname = '';
-    } else {
-      // hostnames are always lower case.
-      this.hostname = this.hostname.toLowerCase();
-    }
-
-    if (!ipv6Hostname) {
-      // IDNA Support: Returns a puny coded representation of "domain".
-      // It only converts the part of the domain name that
-      // has non ASCII characters. I.e. it dosent matter if
-      // you call it with a domain that already is in ASCII.
-      var domainArray = this.hostname.split('.');
-      var newOut = [];
-      for (var i = 0; i < domainArray.length; ++i) {
-        var s = domainArray[i];
-        newOut.push(s.match(/[^A-Za-z0-9_-]/) ?
-            'xn--' + punycode.encode(s) : s);
-      }
-      this.hostname = newOut.join('.');
-    }
-
-    var p = this.port ? ':' + this.port : '';
-    var h = this.hostname || '';
-    this.host = h + p;
-    this.href += this.host;
-
-    // strip [ and ] from the hostname
-    // the host field still retains them, though
-    if (ipv6Hostname) {
-      this.hostname = this.hostname.substr(1, this.hostname.length - 2);
-      if (rest[0] !== '/') {
-        rest = '/' + rest;
-      }
-    }
-  }
-
-  // now rest is set to the post-host stuff.
-  // chop off any delim chars.
-  if (!unsafeProtocol[lowerProto]) {
-
-    // First, make 100% sure that any "autoEscape" chars get
-    // escaped, even if encodeURIComponent doesn't think they
-    // need to be.
-    for (var i = 0, l = autoEscape.length; i < l; i++) {
-      var ae = autoEscape[i];
-      var esc = encodeURIComponent(ae);
-      if (esc === ae) {
-        esc = escape(ae);
-      }
-      rest = rest.split(ae).join(esc);
-    }
-  }
-
-
-  // chop off from the tail first.
-  var hash = rest.indexOf('#');
-  if (hash !== -1) {
-    // got a fragment string.
-    this.hash = rest.substr(hash);
-    rest = rest.slice(0, hash);
-  }
-  var qm = rest.indexOf('?');
-  if (qm !== -1) {
-    this.search = rest.substr(qm);
-    this.query = rest.substr(qm + 1);
-    if (parseQueryString) {
-      this.query = querystring.parse(this.query);
-    }
-    rest = rest.slice(0, qm);
-  } else if (parseQueryString) {
-    // no query string, but parseQueryString still requested
-    this.search = '';
-    this.query = {};
-  }
-  if (rest) this.pathname = rest;
-  if (slashedProtocol[lowerProto] &&
-      this.hostname && !this.pathname) {
-    this.pathname = '/';
-  }
-
-  //to support http.request
-  if (this.pathname || this.search) {
-    var p = this.pathname || '';
-    var s = this.search || '';
-    this.path = p + s;
-  }
-
-  // finally, reconstruct the href based on what has been validated.
-  this.href = this.format();
-  return this;
-};
-
-// format a parsed object into a url string
-function urlFormat(obj) {
-  // ensure it's an object, and not a string url.
-  // If it's an obj, this is a no-op.
-  // this way, you can call url_format() on strings
-  // to clean up potentially wonky urls.
-  if (isString(obj)) obj = urlParse(obj);
-  if (!(obj instanceof Url)) return Url.prototype.format.call(obj);
-  return obj.format();
-}
-
-Url.prototype.format = function() {
-  var auth = this.auth || '';
-  if (auth) {
-    auth = encodeURIComponent(auth);
-    auth = auth.replace(/%3A/i, ':');
-    auth += '@';
-  }
-
-  var protocol = this.protocol || '',
-      pathname = this.pathname || '',
-      hash = this.hash || '',
-      host = false,
-      query = '';
-
-  if (this.host) {
-    host = auth + this.host;
-  } else if (this.hostname) {
-    host = auth + (this.hostname.indexOf(':') === -1 ?
-        this.hostname :
-        '[' + this.hostname + ']');
-    if (this.port) {
-      host += ':' + this.port;
-    }
-  }
-
-  if (this.query &&
-      isObject(this.query) &&
-      Object.keys(this.query).length) {
-    query = querystring.stringify(this.query);
-  }
-
-  var search = this.search || (query && ('?' + query)) || '';
-
-  if (protocol && protocol.substr(-1) !== ':') protocol += ':';
-
-  // only the slashedProtocols get the //.  Not mailto:, xmpp:, etc.
-  // unless they had them to begin with.
-  if (this.slashes ||
-      (!protocol || slashedProtocol[protocol]) && host !== false) {
-    host = '//' + (host || '');
-    if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;
-  } else if (!host) {
-    host = '';
-  }
-
-  if (hash && hash.charAt(0) !== '#') hash = '#' + hash;
-  if (search && search.charAt(0) !== '?') search = '?' + search;
-
-  pathname = pathname.replace(/[?#]/g, function(match) {
-    return encodeURIComponent(match);
-  });
-  search = search.replace('#', '%23');
-
-  return protocol + host + pathname + search + hash;
-};
-
-function urlResolve(source, relative) {
-  return urlParse(source, false, true).resolve(relative);
-}
-
-Url.prototype.resolve = function(relative) {
-  return this.resolveObject(urlParse(relative, false, true)).format();
-};
-
-function urlResolveObject(source, relative) {
-  if (!source) return relative;
-  return urlParse(source, false, true).resolveObject(relative);
-}
-
-Url.prototype.resolveObject = function(relative) {
-  if (isString(relative)) {
-    var rel = new Url();
-    rel.parse(relative, false, true);
-    relative = rel;
-  }
-
-  var result = new Url();
-  Object.keys(this).forEach(function(k) {
-    result[k] = this[k];
-  }, this);
-
-  // hash is always overridden, no matter what.
-  // even href="" will remove it.
-  result.hash = relative.hash;
-
-  // if the relative url is empty, then there's nothing left to do here.
-  if (relative.href === '') {
-    result.href = result.format();
-    return result;
-  }
-
-  // hrefs like //foo/bar always cut to the protocol.
-  if (relative.slashes && !relative.protocol) {
-    // take everything except the protocol from relative
-    Object.keys(relative).forEach(function(k) {
-      if (k !== 'protocol')
-        result[k] = relative[k];
-    });
-
-    //urlParse appends trailing / to urls like http://www.example.com
-    if (slashedProtocol[result.protocol] &&
-        result.hostname && !result.pathname) {
-      result.path = result.pathname = '/';
-    }
-
-    result.href = result.format();
-    return result;
-  }
-
-  if (relative.protocol && relative.protocol !== result.protocol) {
-    // if it's a known url protocol, then changing
-    // the protocol does weird things
-    // first, if it's not file:, then we MUST have a host,
-    // and if there was a path
-    // to begin with, then we MUST have a path.
-    // if it is file:, then the host is dropped,
-    // because that's known to be hostless.
-    // anything else is assumed to be absolute.
-    if (!slashedProtocol[relative.protocol]) {
-      Object.keys(relative).forEach(function(k) {
-        result[k] = relative[k];
-      });
-      result.href = result.format();
-      return result;
-    }
-
-    result.protocol = relative.protocol;
-    if (!relative.host && !hostlessProtocol[relative.protocol]) {
-      var relPath = (relative.pathname || '').split('/');
-      while (relPath.length && !(relative.host = relPath.shift()));
-      if (!relative.host) relative.host = '';
-      if (!relative.hostname) relative.hostname = '';
-      if (relPath[0] !== '') relPath.unshift('');
-      if (relPath.length < 2) relPath.unshift('');
-      result.pathname = relPath.join('/');
-    } else {
-      result.pathname = relative.pathname;
-    }
-    result.search = relative.search;
-    result.query = relative.query;
-    result.host = relative.host || '';
-    result.auth = relative.auth;
-    result.hostname = relative.hostname || relative.host;
-    result.port = relative.port;
-    // to support http.request
-    if (result.pathname || result.search) {
-      var p = result.pathname || '';
-      var s = result.search || '';
-      result.path = p + s;
-    }
-    result.slashes = result.slashes || relative.slashes;
-    result.href = result.format();
-    return result;
-  }
-
-  var isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/'),
-      isRelAbs = (
-          relative.host ||
-          relative.pathname && relative.pathname.charAt(0) === '/'
-      ),
-      mustEndAbs = (isRelAbs || isSourceAbs ||
-                    (result.host && relative.pathname)),
-      removeAllDots = mustEndAbs,
-      srcPath = result.pathname && result.pathname.split('/') || [],
-      relPath = relative.pathname && relative.pathname.split('/') || [],
-      psychotic = result.protocol && !slashedProtocol[result.protocol];
-
-  // if the url is a non-slashed url, then relative
-  // links like ../.. should be able
-  // to crawl up to the hostname, as well.  This is strange.
-  // result.protocol has already been set by now.
-  // Later on, put the first path part into the host field.
-  if (psychotic) {
-    result.hostname = '';
-    result.port = null;
-    if (result.host) {
-      if (srcPath[0] === '') srcPath[0] = result.host;
-      else srcPath.unshift(result.host);
-    }
-    result.host = '';
-    if (relative.protocol) {
-      relative.hostname = null;
-      relative.port = null;
-      if (relative.host) {
-        if (relPath[0] === '') relPath[0] = relative.host;
-        else relPath.unshift(relative.host);
-      }
-      relative.host = null;
-    }
-    mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');
-  }
-
-  if (isRelAbs) {
-    // it's absolute.
-    result.host = (relative.host || relative.host === '') ?
-                  relative.host : result.host;
-    result.hostname = (relative.hostname || relative.hostname === '') ?
-                      relative.hostname : result.hostname;
-    result.search = relative.search;
-    result.query = relative.query;
-    srcPath = relPath;
-    // fall through to the dot-handling below.
-  } else if (relPath.length) {
-    // it's relative
-    // throw away the existing file, and take the new path instead.
-    if (!srcPath) srcPath = [];
-    srcPath.pop();
-    srcPath = srcPath.concat(relPath);
-    result.search = relative.search;
-    result.query = relative.query;
-  } else if (!isNullOrUndefined(relative.search)) {
-    // just pull out the search.
-    // like href='?foo'.
-    // Put this after the other two cases because it simplifies the booleans
-    if (psychotic) {
-      result.hostname = result.host = srcPath.shift();
-      //occationaly the auth can get stuck only in host
-      //this especialy happens in cases like
-      //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
-      var authInHost = result.host && result.host.indexOf('@') > 0 ?
-                       result.host.split('@') : false;
-      if (authInHost) {
-        result.auth = authInHost.shift();
-        result.host = result.hostname = authInHost.shift();
-      }
-    }
-    result.search = relative.search;
-    result.query = relative.query;
-    //to support http.request
-    if (!isNull(result.pathname) || !isNull(result.search)) {
-      result.path = (result.pathname ? result.pathname : '') +
-                    (result.search ? result.search : '');
-    }
-    result.href = result.format();
-    return result;
-  }
-
-  if (!srcPath.length) {
-    // no path at all.  easy.
-    // we've already handled the other stuff above.
-    result.pathname = null;
-    //to support http.request
-    if (result.search) {
-      result.path = '/' + result.search;
-    } else {
-      result.path = null;
-    }
-    result.href = result.format();
-    return result;
-  }
-
-  // if a url ENDs in . or .., then it must get a trailing slash.
-  // however, if it ends in anything else non-slashy,
-  // then it must NOT get a trailing slash.
-  var last = srcPath.slice(-1)[0];
-  var hasTrailingSlash = (
-      (result.host || relative.host) && (last === '.' || last === '..') ||
-      last === '');
-
-  // strip single dots, resolve double dots to parent dir
-  // if the path tries to go above the root, `up` ends up > 0
-  var up = 0;
-  for (var i = srcPath.length; i >= 0; i--) {
-    last = srcPath[i];
-    if (last == '.') {
-      srcPath.splice(i, 1);
-    } else if (last === '..') {
-      srcPath.splice(i, 1);
-      up++;
-    } else if (up) {
-      srcPath.splice(i, 1);
-      up--;
-    }
-  }
-
-  // if the path is allowed to go above the root, restore leading ..s
-  if (!mustEndAbs && !removeAllDots) {
-    for (; up--; up) {
-      srcPath.unshift('..');
-    }
-  }
-
-  if (mustEndAbs && srcPath[0] !== '' &&
-      (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {
-    srcPath.unshift('');
-  }
-
-  if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) {
-    srcPath.push('');
-  }
-
-  var isAbsolute = srcPath[0] === '' ||
-      (srcPath[0] && srcPath[0].charAt(0) === '/');
-
-  // put the host back
-  if (psychotic) {
-    result.hostname = result.host = isAbsolute ? '' :
-                                    srcPath.length ? srcPath.shift() : '';
-    //occationaly the auth can get stuck only in host
-    //this especialy happens in cases like
-    //url.resolveObject('mailto:local1@domain1', 'local2@domain2')
-    var authInHost = result.host && result.host.indexOf('@') > 0 ?
-                     result.host.split('@') : false;
-    if (authInHost) {
-      result.auth = authInHost.shift();
-      result.host = result.hostname = authInHost.shift();
-    }
-  }
-
-  mustEndAbs = mustEndAbs || (result.host && srcPath.length);
-
-  if (mustEndAbs && !isAbsolute) {
-    srcPath.unshift('');
-  }
-
-  if (!srcPath.length) {
-    result.pathname = null;
-    result.path = null;
-  } else {
-    result.pathname = srcPath.join('/');
-  }
-
-  //to support request.http
-  if (!isNull(result.pathname) || !isNull(result.search)) {
-    result.path = (result.pathname ? result.pathname : '') +
-                  (result.search ? result.search : '');
-  }
-  result.auth = relative.auth || result.auth;
-  result.slashes = result.slashes || relative.slashes;
-  result.href = result.format();
-  return result;
-};
-
-Url.prototype.parseHost = function() {
-  var host = this.host;
-  var port = portPattern.exec(host);
-  if (port) {
-    port = port[0];
-    if (port !== ':') {
-      this.port = port.substr(1);
-    }
-    host = host.substr(0, host.length - port.length);
-  }
-  if (host) this.hostname = host;
-};
-
-function isString(arg) {
-  return typeof arg === "string";
-}
-
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
-
-function isNull(arg) {
-  return arg === null;
-}
-function isNullOrUndefined(arg) {
-  return  arg == null;
-}
-
-},{"punycode":6,"querystring":9}],11:[function(require,module,exports){
-var $ = require('jquery');
-
-function toggleDropdown(e) {
-    var $dropdown = $(e.currentTarget).parent().find('.dropdown-menu');
-
-    $dropdown.toggleClass('open');
-    e.stopPropagation();
-    e.preventDefault();
-}
-
-function closeDropdown(e) {
-    $('.dropdown-menu').removeClass('open');
-}
-
-// Bind all dropdown
-function init() {
-    $(document).on('click', '.toggle-dropdown', toggleDropdown);
-    $(document).on('click', '.dropdown-menu', function(e){ e.stopPropagation(); });
-    $(document).on('click', closeDropdown);
-}
-
-module.exports = {
-    init: init
-};
-
-
-},{"jquery":1}],12:[function(require,module,exports){
-var $ = require('jquery');
-
-module.exports = $({});
-
-
-},{"jquery":1}],13:[function(require,module,exports){
-var $ = require('jquery');
-var _ = require('lodash');
-
-var storage = require('./storage');
-var dropdown = require('./dropdown');
-var events = require('./events');
-var state = require('./state');
-var keyboard = require('./keyboard');
-var navigation = require('./navigation');
-var sidebar = require('./sidebar');
-var toolbar = require('./toolbar');
-
-
-function start(config) {
-    // Init sidebar
-    sidebar.init();
-
-    // Init keyboard
-    keyboard.init();
-
-    // Bind dropdown
-    dropdown.init();
-
-    // Init navigation
-    navigation.init();
-
-
-    // Add action to toggle sidebar
-    toolbar.createButton({
-        index: 0,
-        icon: 'fa fa-align-justify',
-        onClick: function(e) {
-            e.preventDefault();
-            sidebar.toggle();
-        }
-    });
-
-    events.trigger('start', config);
-    navigation.notify();
-}
-
-// Export APIs for plugins
-var gitbook = {
-    start: start,
-    events: events,
-    state: state,
-
-    // UI sections
-    toolbar: toolbar,
-    sidebar: sidebar,
-
-    // Read/Write the localstorage
-    storage: storage,
-
-    // Create keyboard shortcuts
-    keyboard: keyboard
-};
-
-
-// Modules mapping for plugins
-var MODULES = {
-    'gitbook': gitbook,
-    'jquery': $,
-    'lodash': _
-};
-
-window.gitbook = gitbook;
-window.$ = $;
-window.jQuery = $;
-window.require = function(mods, fn) {
-    mods = _.map(mods, function(mod) {
-        mod = mod.toLowerCase();
-        if (!MODULES[mod]) {
-            throw new Error('GitBook module '+mod+' doesn\'t exist');
-        }
-
-        return MODULES[mod];
-    });
-
-    fn.apply(null, mods);
-};
-
-module.exports = {};
-
-
-},{"./dropdown":11,"./events":12,"./keyboard":14,"./navigation":16,"./sidebar":18,"./state":19,"./storage":20,"./toolbar":21,"jquery":1,"lodash":2}],14:[function(require,module,exports){
-var Mousetrap = require('mousetrap');
-
-var navigation = require('./navigation');
-var sidebar = require('./sidebar');
-
-// Bind a keyboard shortcuts
-function bindShortcut(keys, fn) {
-    Mousetrap.bind(keys, function(e) {
-        fn();
-        return false;
-    });
-}
-
-
-// Bind keyboard shortcuts
-function init() {
-    // Next
-    bindShortcut(['right'], function(e) {
-        navigation.goNext();
-    });
-
-    // Prev
-    bindShortcut(['left'], function(e) {
-        navigation.goPrev();
-    });
-
-    // Toggle Summary
-    bindShortcut(['s'], function(e) {
-        sidebar.toggle();
-    });
-}
-
-module.exports = {
-    init: init,
-    bind: bindShortcut
-};
-
-},{"./navigation":16,"./sidebar":18,"mousetrap":3}],15:[function(require,module,exports){
-var state = require('./state');
-
-function showLoading(p) {
-    state.$book.addClass('is-loading');
-    p.always(function() {
-        state.$book.removeClass('is-loading');
-    });
-
-    return p;
-}
-
-module.exports = {
-    show: showLoading
-};
-
-},{"./state":19}],16:[function(require,module,exports){
-var $ = require('jquery');
-var url = require('url');
-
-var events = require('./events');
-var state = require('./state');
-var loading = require('./loading');
-
-
-var usePushState = (typeof history.pushState !== 'undefined');
-
-function handleNavigation(relativeUrl, push) {
-    var uri = url.resolve(window.location.pathname, relativeUrl);
-
-    if (!usePushState) {
-        // Refresh the page to the new URL if pushState not supported
-        location.href = relativeUrl;
-        return;
-    }
-
-    return loading.show($.get(uri)
-    .done(function (html) {
-        // Push url to history
-        if (push) history.pushState({ path: uri }, null, uri);
-
-        // Replace html content
-        html = html.replace( /<(\/?)(html|head|body)([^>]*)>/ig, function(a,b,c,d){
-            return '<' + b + 'div' + ( b ? '' : ' data-element="' + c + '"' ) + d + '>';
-        });
-
-        var $page = $(html);
-        var $pageHead = $page.find('[data-element=head]');
-        var $pageBody = $page.find('.book');
-
-        // Merge heads
-        // !! Warning !!: we only update necessary portions to avoid strange behavior (page flickering etc ...)
-
-        // Update title
-        document.title = $pageHead.find('title').text();
-
-        // Reference to $('head');
-        var $head = $('head');
-
-        // Update next & prev <link> tags
-        // Remove old
-        $head.find('link[rel=prev]').remove();
-        $head.find('link[rel=next]').remove();
-
-        // Add new next * prev <link> tags
-        $head.append($pageHead.find('link[rel=prev]'));
-        $head.append($pageHead.find('link[rel=next]'));
-
-        // Merge body
-        var bodyClass = $('.book').attr('class');
-        var scrollPosition = $('.book-summary .summary').scrollTop();
-        $pageBody.toggleClass('with-summary', $('.book').hasClass('with-summary'));
-
-        $('.book').replaceWith($pageBody);
-        $('.book').attr('class', bodyClass);
-        $('.book-summary .summary').scrollTop(scrollPosition);
-
-        // Update state
-        state.update($('html'));
-        preparePage();
-    })
-    .fail(function (e) {
-        location.href = relativeUrl;
-    }));
-}
-
-function updateNavigationPosition() {
-    var bodyInnerWidth, pageWrapperWidth;
-
-    bodyInnerWidth = parseInt($('.body-inner').css('width'), 10);
-    pageWrapperWidth = parseInt($('.page-wrapper').css('width'), 10);
-    $('.navigation-next').css('margin-right', (bodyInnerWidth - pageWrapperWidth) + 'px');
-}
-
-function notifyPageChange() {
-    events.trigger('page.change');
-}
-
-function preparePage(notify) {
-    var $bookBody = $('.book-body');
-    var $bookInner = $bookBody.find('.body-inner');
-    var $pageWrapper = $bookInner.find('.page-wrapper');
-
-    // Update navigation position
-    updateNavigationPosition();
-
-    // Focus on content
-    $pageWrapper.focus();
-
-    // Reset scroll
-    $bookInner.scrollTop(0);
-    $bookBody.scrollTop(0);
-
-    // Notify
-    if (notify !== false) notifyPageChange();
-}
-
-function isLeftClickEvent(e) {
-    return e.button === 0;
-}
-
-function isModifiedEvent(e) {
-    return !!(e.metaKey || e.altKey || e.ctrlKey || e.shiftKey);
-}
-
-function handlePagination(e) {
-    if (isModifiedEvent(e) || !isLeftClickEvent(e)) {
-        return;
-    }
-
-    e.stopPropagation();
-    e.preventDefault();
-
-    var url = $(this).attr('href');
-    if (url) handleNavigation(url, true);
-}
-
-function goNext() {
-    var url = $('.navigation-next').attr('href');
-    if (url) handleNavigation(url, true);
-}
-
-function goPrev() {
-    var url = $('.navigation-prev').attr('href');
-    if (url) handleNavigation(url, true);
-}
-
-
-function init() {
-    // Prevent cache so that using the back button works
-    // See: http://stackoverflow.com/a/15805399/983070
-    $.ajaxSetup({
-        cache: false
-    });
-
-    // Recreate first page when the page loads.
-    history.replaceState({ path: window.location.href }, '');
-
-    // Back Button Hijacking :(
-    window.onpopstate = function (event) {
-        if (event.state === null) {
-            return;
-        }
-        return handleNavigation(event.state.path, false);
-    };
-
-    $(document).on('click', '.navigation-prev', handlePagination);
-    $(document).on('click', '.navigation-next', handlePagination);
-    $(document).on('click', '.summary [data-path] a', handlePagination);
-
-    $(window).resize(updateNavigationPosition);
-
-    // Prepare current page
-    preparePage(false);
-}
-
-module.exports = {
-    init: init,
-    goNext: goNext,
-    goPrev: goPrev,
-    notify: notifyPageChange
-};
-
-},{"./events":12,"./loading":15,"./state":19,"jquery":1,"url":10}],17:[function(require,module,exports){
-module.exports = {
-    isMobile: function() {
-        return (document.width <= 600);
-    }
-};
-
-},{}],18:[function(require,module,exports){
-var $ = require('jquery');
-var _ = require('lodash');
-
-var storage = require('./storage');
-var platform = require('./platform');
-var state = require('./state');
-
-
-// Toggle sidebar with or withour animation
-function toggleSidebar(_state, animation) {
-    if (state != null && isOpen() == _state) return;
-    if (animation == null) animation = true;
-
-    state.$book.toggleClass('without-animation', !animation);
-    state.$book.toggleClass('with-summary', _state);
-
-    storage.set('sidebar', isOpen());
-}
-
-// Return true if sidebar is open
-function isOpen() {
-    return state.$book.hasClass('with-summary');
-}
-
-// Prepare sidebar: state and toggle button
-function init() {
-    // Init last state if not mobile
-    if (!platform.isMobile()) {
-        toggleSidebar(storage.get('sidebar', true), false);
-    }
-
-    // Close sidebar after clicking a link on mobile
-    $(document).on('click', '.book-summary li.chapter a', function(e) {
-        if (platform.isMobile()) toggleSidebar(false, false);
-    });
-}
-
-// Filter summary with a list of path
-function filterSummary(paths) {
-    var $summary = $('.book-summary');
-
-    $summary.find('li').each(function() {
-        var path = $(this).data('path');
-        var st = paths == null || _.contains(paths, path);
-
-        $(this).toggle(st);
-        if (st) $(this).parents('li').show();
-    });
-}
-
-module.exports = {
-    init: init,
-    isOpen: isOpen,
-    toggle: toggleSidebar,
-    filter: filterSummary
-};
-
-},{"./platform":17,"./state":19,"./storage":20,"jquery":1,"lodash":2}],19:[function(require,module,exports){
-var $ = require('jquery');
-var url = require('url');
-var path = require('path');
-
-var state = {};
-
-state.update = function(dom) {
-    var $book = $(dom.find('.book'));
-
-    state.$book = $book;
-    state.level = $book.data('level');
-    state.basePath = $book.data('basepath');
-
-    // If book is multilingual, language of this book
-    state.innerLanguage = $book.data('innerlanguage');
-
-    // Date of build
-    state.revision = $book.data('revision');
-
-    // Original path of the file
-    state.filepath = $book.data('filepath');
-
-    // Title of the chapter
-    state.chapterTitle = $book.data('chapter-title');
-
-    // Absolute url to the root of the book (inner book)
-    state.root = url.resolve(
-        location.protocol+'//'+location.host,
-        path.dirname(path.resolve(location.pathname.replace(/\/$/, '/index.html'), state.basePath))
-    ).replace(/\/?$/, '/');
-
-    // Absolute root to the language (for multilingual book)
-    state.bookRoot = state.innerLanguage? url.resolve(state.root, '..') : state.root;
-};
-
-state.update($);
-
-module.exports = state;
-
-},{"jquery":1,"path":4,"url":10}],20:[function(require,module,exports){
-var baseKey = '';
-
-/*
- * Simple module for storing data in the browser's local storage
- */
-module.exports = {
-    setBaseKey: function(key) {
-        baseKey = key;
-    },
-
-    // Write something in localstorage
-    set: function(key, value) {
-        key = baseKey+':'+key;
-
-        try {
-            localStorage[key] = JSON.stringify(value);
-        } catch(e) {}
-    },
-
-    // Read a value from localstorage
-    get: function(key, def) {
-        key = baseKey+':'+key;
-        if (localStorage[key] === undefined) return def;
-        try {
-            var v = JSON.parse(localStorage[key]);
-            return v == null ? def : v;;
-        } catch(err) {
-            return localStorage[key] || def;
-        }
-    },
-
-    // Remove a key from localstorage
-    remove: function(key) {
-        key = baseKey+':'+key;
-        localStorage.removeItem(key);
-    }
-};
-
-},{}],21:[function(require,module,exports){
-var $ = require('jquery');
-var _ = require('lodash');
-
-var events = require('./events');
-
-// List of created buttons
-var buttons = [];
-
-// Insert a jquery element at a specific position
-function insertAt(parent, selector, index, element) {
-    var lastIndex = parent.children(selector).size();
-    if (index < 0) {
-        index = Math.max(0, lastIndex + 1 + index);
-    }
-    parent.append(element);
-
-    if (index < lastIndex) {
-        parent.children(selector).eq(index).before(parent.children(selector).last());
-    }
-}
-
-// Default click handler
-function defaultOnClick(e) {
-    e.preventDefault();
-}
-
-// Create a dropdown menu
-function createDropdownMenu(dropdown) {
-    var $menu = $('<div>', {
-        'class': 'dropdown-menu',
-        'html': '<div class="dropdown-caret"><span class="caret-outer"></span><span class="caret-inner"></span></div>'
-    });
-
-    if (_.isString(dropdown)) {
-        $menu.append(dropdown);
-    } else {
-        var groups = _.map(dropdown, function(group) {
-            if (_.isArray(group)) return group;
-            else return [group];
-        });
-
-        // Create buttons groups
-        _.each(groups, function(group) {
-            var $group = $('<div>', {
-                'class': 'buttons'
-            });
-            var sizeClass = 'size-'+group.length;
-
-            // Append buttons
-            _.each(group, function(btn) {
-                btn = _.defaults(btn || {}, {
-                    text: '',
-                    className: '',
-                    onClick: defaultOnClick
-                });
-
-                var $btn = $('<button>', {
-                    'class': 'button '+sizeClass+' '+btn.className,
-                    'text': btn.text
-                });
-                $btn.click(btn.onClick);
-
-                $group.append($btn);
-            });
-
-
-            $menu.append($group);
-        });
-
-    }
-
-
-    return $menu;
-}
-
-// Create a new button in the toolbar
-function createButton(opts) {
-    opts = _.defaults(opts || {}, {
-        // Aria label for the button
-        label: '',
-
-        // Icon to show
-        icon: '',
-
-        // Inner text
-        text: '',
-
-        // Right or left position
-        position: 'left',
-
-        // Other class name to add to the button
-        className: '',
-
-        // Triggered when user click on the button
-        onClick: defaultOnClick,
-
-        // Button is a dropdown
-        dropdown: null,
-
-        // Position in the toolbar
-        index: null
-    });
-
-    buttons.push(opts);
-    updateButton(opts);
-}
-
-// Update a button
-function updateButton(opts) {
-    var $result;
-    var $toolbar = $('.book-header');
-    var $title = $toolbar.find('h1');
-
-    // Build class name
-    var positionClass = 'pull-'+opts.position;
-
-    // Create button
-    var $btn = $('<a>', {
-        'class': 'btn',
-        'text': opts.text? ' ' + opts.text : '',
-        'aria-label': opts.label,
-        'href': '#'
-    });
-
-    // Bind click
-    $btn.click(opts.onClick);
-
-    // Prepend icon
-    if (opts.icon) {
-        $('<i>', {
-            'class': opts.icon
-        }).prependTo($btn);
-    }
-
-    // Prepare dropdown
-    if (opts.dropdown) {
-        var $container = $('<div>', {
-            'class': 'dropdown '+positionClass+' '+opts.className
-        });
-
-        // Add button to container
-        $btn.addClass('toggle-dropdown');
-        $container.append($btn);
-
-        // Create inner menu
-        var $menu = createDropdownMenu(opts.dropdown);
-
-        // Menu position
-        $menu.addClass('dropdown-'+(opts.position == 'right'? 'left' : 'right'));
-
-        $container.append($menu);
-        $result = $container;
-    } else {
-        $btn.addClass(positionClass);
-        $btn.addClass(opts.className);
-        $result = $btn;
-    }
-
-    $result.addClass('js-toolbar-action');
-
-    if (_.isNumber(opts.index) && opts.index >= 0) {
-        insertAt($toolbar, '.btn, .dropdown, h1', opts.index, $result);
-    } else {
-        $result.insertBefore($title);
-    }
-}
-
-// Update all buttons
-function updateAllButtons() {
-    $('.js-toolbar-action').remove();
-    _.each(buttons, updateButton);
-}
-
-// When page changed, reset buttons
-events.bind('page.change', function() {
-    updateAllButtons();
-});
-
-module.exports = {
-    createButton: createButton
-};
-
-},{"./events":12,"jquery":1,"lodash":2}]},{},[13]);
diff --git a/theme/assets/website/fonts/fontawesome/FontAwesome.otf b/theme/assets/website/fonts/fontawesome/FontAwesome.otf
deleted file mode 100644
index 3461e3f..0000000
--- a/theme/assets/website/fonts/fontawesome/FontAwesome.otf
+++ /dev/null
diff --git a/theme/assets/website/fonts/fontawesome/fontawesome-webfont.eot b/theme/assets/website/fonts/fontawesome/fontawesome-webfont.eot
deleted file mode 100755
index 6cfd566..0000000
--- a/theme/assets/website/fonts/fontawesome/fontawesome-webfont.eot
+++ /dev/null
diff --git a/theme/assets/website/fonts/fontawesome/fontawesome-webfont.svg b/theme/assets/website/fonts/fontawesome/fontawesome-webfont.svg
deleted file mode 100755
index a9f8469..0000000
--- a/theme/assets/website/fonts/fontawesome/fontawesome-webfont.svg
+++ /dev/null
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\ No newline at end of file
diff --git a/theme/i18n/ar.json b/theme/i18n/ar.json
deleted file mode 100644
index a0e7e56..0000000
--- a/theme/i18n/ar.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "direction": "rtl",
-    "LANGS_CHOOSE": "اختيار اللغة",
-    "GLOSSARY": "قاموس مصطلحات",
-    "GLOSSARY_INDEX": "مؤشر المصطلحات",
-    "GLOSSARY_OPEN": "قاموس مصطلحات",
-    "GITBOOK_LINK": "نشرت مع GitBook",
-    "SUMMARY": "جدول المحتويات",
-    "SUMMARY_INTRODUCTION": "مقدمة",
-    "SUMMARY_TOGGLE": "جدول المحتويات",
-    "SEARCH_TOGGLE": "بحث",
-    "SEARCH_PLACEHOLDER": "اكتب للبحث",
-    "FONTSETTINGS_TOGGLE": "إعدادات الخط",
-    "SHARE_TOGGLE": "حصة",
-    "SHARE_ON": "على {{platform}} حصة",
-    "FONTSETTINGS_WHITE": "أبيض",
-    "FONTSETTINGS_SEPIA": "بني داكن",
-    "FONTSETTINGS_NIGHT": "ليل",
-    "FONTSETTINGS_SANS": "بلا",
-    "FONTSETTINGS_SERIF": "الرقيق"
-}
diff --git a/theme/i18n/bn.json b/theme/i18n/bn.json
deleted file mode 100644
index 24baec3..0000000
--- a/theme/i18n/bn.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "ভাষা নির্বাচন করুন",
-    "GLOSSARY": "গ্লোসারি",
-    "GLOSSARY_INDEX": "ইন্ডেক্স",
-    "GLOSSARY_OPEN": "গ্লোসারি",
-    "GITBOOK_LINK": "গিটবুকের মাধ্যমে প্রকাশিত",
-    "SUMMARY": "সূচিপত্র",
-    "SUMMARY_INTRODUCTION": "সূচনা",
-    "SUMMARY_TOGGLE": "সূচিপত্র",
-    "SEARCH_TOGGLE": "অনুসন্ধান",
-    "SEARCH_PLACEHOLDER": "অনুসন্ধান",
-    "FONTSETTINGS_TOGGLE": "ফন্ট সেটিংস",
-    "SHARE_TOGGLE": "শেয়ার",
-    "SHARE_ON": "{{platform}}-এ শেয়ার",
-    "FONTSETTINGS_WHITE": "সাদা",
-    "FONTSETTINGS_SEPIA": "সেপিয়া",
-    "FONTSETTINGS_NIGHT": "রাত",
-    "FONTSETTINGS_SANS": "স্যান্স",
-    "FONTSETTINGS_SERIF": "শেরিফ"
-}
diff --git a/theme/i18n/ca.json b/theme/i18n/ca.json
deleted file mode 100644
index d26edb6..0000000
--- a/theme/i18n/ca.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Selecciona un idioma",
-    "GLOSSARY": "Glossari",
-    "GLOSSARY_INDEX": "Índex",
-    "GLOSSARY_OPEN": "Glossari",
-    "GITBOOK_LINK": "Publicat amb GitBook",
-    "SUMMARY": "Taula de contingut",
-    "SUMMARY_INTRODUCTION": "Introducció",
-    "SUMMARY_TOGGLE": "Taula de contingut",
-    "SEARCH_TOGGLE": "Cercar",
-    "SEARCH_PLACEHOLDER": "Escriu per cercar",
-    "FONTSETTINGS_TOGGLE": "Configuració de font",
-    "SHARE_TOGGLE": "Compartir",
-    "SHARE_ON": "Compartir en {{platform}}",
-    "FONTSETTINGS_WHITE": "Clar",
-    "FONTSETTINGS_SEPIA": "Sèpia",
-    "FONTSETTINGS_NIGHT": "Nit",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/cs.json b/theme/i18n/cs.json
deleted file mode 100644
index b2e19c0..0000000
--- a/theme/i18n/cs.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Zvolte jazyk",
-    "GLOSSARY": "Slovníček",
-    "GLOSSARY_INDEX": "Rejstřík",
-    "GLOSSARY_OPEN": "Slovníček",
-    "GITBOOK_LINK": "Publikováno pomocí GitBook",
-    "SUMMARY": "Obsah",
-    "SUMMARY_INTRODUCTION": "Úvod",
-    "SUMMARY_TOGGLE": "Obsah",
-    "SEARCH_TOGGLE": "Hledání",
-    "SEARCH_PLACEHOLDER": "Vyhledat",
-    "FONTSETTINGS_TOGGLE": "Nastavení písma",
-    "SHARE_TOGGLE": "Sdílet",
-    "SHARE_ON": "Sdílet na {{platform}}",
-    "FONTSETTINGS_WHITE": "Bílá",
-    "FONTSETTINGS_SEPIA": "Sépie",
-    "FONTSETTINGS_NIGHT": "Noc",
-    "FONTSETTINGS_SANS": "Bezpatkové",
-    "FONTSETTINGS_SERIF": "Patkové"
-}
diff --git a/theme/i18n/de.json b/theme/i18n/de.json
deleted file mode 100644
index b51732e..0000000
--- a/theme/i18n/de.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Sprache auswählen",
-    "GLOSSARY": "Glossar",
-    "GLOSSARY_INDEX": "Index",
-    "GLOSSARY_OPEN": "Glossar",
-    "GITBOOK_LINK": "Veröffentlicht mit GitBook",
-    "SUMMARY": "Inhaltsverzeichnis",
-    "SUMMARY_INTRODUCTION": "Einleitung",
-    "SUMMARY_TOGGLE": "Inhaltsverzeichnis",
-    "SEARCH_TOGGLE": "Suche",
-    "SEARCH_PLACEHOLDER": "Suchbegriff eingeben",
-    "FONTSETTINGS_TOGGLE": "Schrifteinstellungen",
-    "SHARE_TOGGLE": "Teilen",
-    "SHARE_ON": "Auf {{platform}} teilen",
-    "FONTSETTINGS_WHITE": "Hell",
-    "FONTSETTINGS_SEPIA": "Sepia",
-    "FONTSETTINGS_NIGHT": "Nacht",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
\ No newline at end of file
diff --git a/theme/i18n/en.json b/theme/i18n/en.json
deleted file mode 100644
index fb4485e..0000000
--- a/theme/i18n/en.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Choose a language",
-    "GLOSSARY": "Glossary",
-    "GLOSSARY_INDEX": "Index",
-    "GLOSSARY_OPEN": "Glossary",
-    "GITBOOK_LINK": "Published with GitBook",
-    "SUMMARY": "Table of Contents",
-    "SUMMARY_INTRODUCTION": "Introduction",
-    "SUMMARY_TOGGLE": "Table of Contents",
-    "SEARCH_TOGGLE": "Search",
-    "SEARCH_PLACEHOLDER": "Type to search",
-    "FONTSETTINGS_TOGGLE": "Font Settings",
-    "SHARE_TOGGLE": "Share",
-    "SHARE_ON": "Share on {{platform}}",
-    "FONTSETTINGS_WHITE": "White",
-    "FONTSETTINGS_SEPIA": "Sepia",
-    "FONTSETTINGS_NIGHT": "Night",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/es.json b/theme/i18n/es.json
deleted file mode 100644
index 36159be..0000000
--- a/theme/i18n/es.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Selecciona un idioma",
-    "GLOSSARY": "Glosario",
-    "GLOSSARY_INDEX": "Índice",
-    "GLOSSARY_OPEN": "Glosario",
-    "GITBOOK_LINK": "Publicado con GitBook",
-    "SUMMARY": "Tabla de contenido",
-    "SUMMARY_INTRODUCTION": "Introducción",
-    "SUMMARY_TOGGLE": "Tabla de contenido",
-    "SEARCH_TOGGLE": "Buscar",
-    "SEARCH_PLACEHOLDER": "Escribe para buscar",
-    "FONTSETTINGS_TOGGLE": "Configuración de fuente",
-    "SHARE_TOGGLE": "Compartir",
-    "SHARE_ON": "Compartir en {{platform}}",
-    "FONTSETTINGS_WHITE": "Claro",
-    "FONTSETTINGS_SEPIA": "Sépia",
-    "FONTSETTINGS_NIGHT": "Noche",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/fa.json b/theme/i18n/fa.json
deleted file mode 100644
index 44445c1..0000000
--- a/theme/i18n/fa.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "direction": "rtl",
-    "LANGS_CHOOSE": "انتخاب زبان",
-    "GLOSSARY": "واژه‌نامه",
-    "GLOSSARY_INDEX": "فهرست واژه‌ها",
-    "GLOSSARY_OPEN": "واژه‌نامه",
-    "GITBOOK_LINK": "انتشار یافته توسط GitBook",
-    "SUMMARY": "فهرست مطالب",
-    "SUMMARY_INTRODUCTION": "مقدمه",
-    "SUMMARY_TOGGLE": "فهرست مطالب",
-    "SEARCH_TOGGLE": "جستجو",
-    "SEARCH_PLACEHOLDER": "چیزی برای جستجو بنویسید",
-    "FONTSETTINGS_TOGGLE": "تنظیمات فونت",
-    "SHARE_TOGGLE": "اشتراک",
-    "SHARE_ON": "در {{platform}} به اشتراک بگذارید",
-    "FONTSETTINGS_WHITE": "سفید",
-    "FONTSETTINGS_SEPIA": "سپیا",
-    "FONTSETTINGS_NIGHT": "شب",
-    "FONTSETTINGS_SANS": "سنس",
-    "FONTSETTINGS_SERIF": "سریف"
-}
diff --git a/theme/i18n/fi.json b/theme/i18n/fi.json
deleted file mode 100644
index a8476ca..0000000
--- a/theme/i18n/fi.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Valitse kieli",
-    "GLOSSARY": "Sanasto",
-    "GLOSSARY_INDEX": "Hakemisto",
-    "GLOSSARY_OPEN": "Sanasto",
-    "GITBOOK_LINK": "Julkaistu GitBookilla",
-    "SUMMARY": "Sisällysluettelo",
-    "SUMMARY_INTRODUCTION": "Johdanto",
-    "SUMMARY_TOGGLE": "Sisällysluettelu",
-    "SEARCH_TOGGLE": "Etsi",
-    "SEARCH_PLACEHOLDER": "Kirjoita hakusana",
-    "FONTSETTINGS_TOGGLE": "Fonttivalinnat",
-    "SHARE_TOGGLE": "Jaa",
-    "SHARE_ON": "Jaa {{platform}}ssa",
-    "FONTSETTINGS_WHITE": "Valkoinen",
-    "FONTSETTINGS_SEPIA": "Seepia",
-    "FONTSETTINGS_NIGHT": "Yö",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/fr.json b/theme/i18n/fr.json
deleted file mode 100644
index 8cc10e2..0000000
--- a/theme/i18n/fr.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Choisissez une langue",
-    "GLOSSARY": "Glossaire",
-    "GLOSSARY_INDEX": "Index",
-    "GLOSSARY_OPEN": "Glossaire",
-    "GITBOOK_LINK": "Publié avec GitBook",
-    "SUMMARY": "Table des matières",
-    "SUMMARY_INTRODUCTION": "Introduction",
-    "SUMMARY_TOGGLE": "Table des matières",
-    "SEARCH_TOGGLE": "Recherche",
-    "SEARCH_PLACEHOLDER": "Tapez pour rechercher",
-    "FONTSETTINGS_TOGGLE": "Paramètres de Police",
-    "SHARE_TOGGLE": "Partage",
-    "SHARE_ON": "Partager sur {{platform}}",
-    "FONTSETTINGS_WHITE": "Clair",
-    "FONTSETTINGS_SEPIA": "Sépia",
-    "FONTSETTINGS_NIGHT": "Nuit",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
\ No newline at end of file
diff --git a/theme/i18n/he.json b/theme/i18n/he.json
deleted file mode 100644
index b7bddc0..0000000
--- a/theme/i18n/he.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-    "direction": "rtl",
-    "LANGS_CHOOSE": "בחר שפה",
-    "GLOSSARY": "מונחים",
-    "GLOSSARY_INDEX": "מפתח",
-    "GLOSSARY_OPEN": "מונחים",
-    "GITBOOK_LINK": "הוצאה לאור באמצעות גיט-בוק GITBOOK",
-    "SUMMARY": "תוכן העניינים",
-    "SUMMARY_INTRODUCTION": "הוראות",
-    "SUMMARY_TOGGLE": "תקציר",
-    "SEARCH_TOGGLE": "חיפוש",
-    "SEARCH_PLACEHOLDER": "סוג החיפוש",
-    "FONTSETTINGS_TOGGLE": "הגדרת אותיות",
-    "SHARE_TOGGLE": "שתף",
-    "SHARE_ON": "{{platform}} שתף ב",
-    "FONTSETTINGS_WHITE": "בהיר",
-    "FONTSETTINGS_SEPIA": "חום כהה",
-    "FONTSETTINGS_NIGHT": "מצב לילה",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/it.json b/theme/i18n/it.json
deleted file mode 100644
index 3f5e95d..0000000
--- a/theme/i18n/it.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Scegli una lingua",
-    "GLOSSARY": "Glossario",
-    "GLOSSARY_INDEX": "Indice",
-    "GLOSSARY_OPEN": "Glossario",
-    "GITBOOK_LINK": "Pubblicato con GitBook",
-    "SUMMARY": "Sommario",
-    "SUMMARY_INTRODUCTION": "Introduzione",
-    "SUMMARY_TOGGLE": "Sommario",
-    "SEARCH_TOGGLE": "Cerca",
-    "SEARCH_PLACEHOLDER": "Scrivi per cercare",
-    "FONTSETTINGS_TOGGLE": "Impostazioni dei caratteri",
-    "SHARE_TOGGLE": "Condividi",
-    "SHARE_ON": "Condividi su {{platform}}",
-    "FONTSETTINGS_WHITE": "Bianco",
-    "FONTSETTINGS_SEPIA": "Seppia",
-    "FONTSETTINGS_NIGHT": "Notte",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
\ No newline at end of file
diff --git a/theme/i18n/ja.json b/theme/i18n/ja.json
deleted file mode 100644
index b1afd02..0000000
--- a/theme/i18n/ja.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "言語を選択",
-    "GLOSSARY": "用語集",
-    "GLOSSARY_INDEX": "索引",
-    "GLOSSARY_OPEN": "用語集",
-    "GITBOOK_LINK": "GitBookで公開 ",
-    "SUMMARY": "目次",
-    "SUMMARY_INTRODUCTION": "はじめに",
-    "SUMMARY_TOGGLE": "目次",
-    "SEARCH_TOGGLE": "検索",
-    "SEARCH_PLACEHOLDER": "検索すると入力",
-    "FONTSETTINGS_TOGGLE": "フォント設定",
-    "SHARE_TOGGLE": "シェア",
-    "SHARE_ON": "{{platform}}でシェア",
-    "FONTSETTINGS_WHITE": "白",
-    "FONTSETTINGS_SEPIA": "セピア",
-    "FONTSETTINGS_NIGHT": "夜",
-    "FONTSETTINGS_SANS": "ゴシック体",
-    "FONTSETTINGS_SERIF": "明朝体"
-}
diff --git a/theme/i18n/ko.json b/theme/i18n/ko.json
deleted file mode 100644
index 5015a93..0000000
--- a/theme/i18n/ko.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "언어를 선택하세요",
-    "GLOSSARY": "어휘",
-    "GLOSSARY_INDEX": "색인",
-    "GLOSSARY_OPEN": "어휘",
-    "GITBOOK_LINK": "GitBook에 게시",
-    "SUMMARY": "차례",
-    "SUMMARY_INTRODUCTION": "소개",
-    "SUMMARY_TOGGLE": "차례",
-    "SEARCH_TOGGLE": "검색",
-    "SEARCH_PLACEHOLDER": "검색어 입력",
-    "FONTSETTINGS_TOGGLE": "글꼴 설정",
-    "SHARE_TOGGLE": "공유",
-    "SHARE_ON": "{{platform}}에 공유",
-    "FONTSETTINGS_WHITE": "화이트",
-    "FONTSETTINGS_SEPIA": "세피아",
-    "FONTSETTINGS_NIGHT": "나이트",
-    "FONTSETTINGS_SANS": "고딕",
-    "FONTSETTINGS_SERIF": "명조"
-}
diff --git a/theme/i18n/no.json b/theme/i18n/no.json
deleted file mode 100644
index 1ed6236..0000000
--- a/theme/i18n/no.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Velg språk",
-    "GLOSSARY": "Register",
-    "GLOSSARY_INDEX": "Indeks",
-    "GLOSSARY_OPEN": "Register",
-    "GITBOOK_LINK": "Publisert med GitBook",
-    "SUMMARY": "Innholdsfortegnelse",
-    "SUMMARY_INTRODUCTION": "Innledning",
-    "SUMMARY_TOGGLE": "Innholdsfortegnelse",
-    "SEARCH_TOGGLE": "Søk",
-    "SEARCH_PLACEHOLDER": "Skriv inn søkeord",
-    "FONTSETTINGS_TOGGLE": "Tekstinnstillinger",
-    "SHARE_TOGGLE": "Del",
-    "SHARE_ON": "Del på {{platform}}",
-    "FONTSETTINGS_WHITE": "Lys",
-    "FONTSETTINGS_SEPIA": "Sepia",
-    "FONTSETTINGS_NIGHT": "Mørk",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/pl.json b/theme/i18n/pl.json
deleted file mode 100644
index 4f009fc..0000000
--- a/theme/i18n/pl.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Wybierz język",
-    "GLOSSARY": "Glosariusz",
-    "GLOSSARY_INDEX": "Indeks",
-    "GLOSSARY_OPEN": "Glosariusz",
-    "GITBOOK_LINK": "Opublikowano dzięki GitBook",
-    "SUMMARY": "Spis treści",
-    "SUMMARY_INTRODUCTION": "Wstęp",
-    "SUMMARY_TOGGLE": "Spis treści",
-    "SEARCH_TOGGLE": "Szukaj",
-    "SEARCH_PLACEHOLDER": "Wpisz szukaną frazę",
-    "FONTSETTINGS_TOGGLE": "Ustawienia czcionki",
-    "SHARE_TOGGLE": "Udostępnij",
-    "SHARE_ON": "Udostępnij na {{platform}}",
-    "FONTSETTINGS_WHITE": "Jasny",
-    "FONTSETTINGS_SEPIA": "Sepia",
-    "FONTSETTINGS_NIGHT": "Noc",
-    "FONTSETTINGS_SANS": "Bezszeryfowa",
-    "FONTSETTINGS_SERIF": "Szeryfowa"
-}
diff --git a/theme/i18n/pt.json b/theme/i18n/pt.json
deleted file mode 100644
index 9d6bde0..0000000
--- a/theme/i18n/pt.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Escolher sua língua",
-    "GLOSSARY": "Glossário",
-    "GLOSSARY_INDEX": "Índice",
-    "GLOSSARY_OPEN": "Glossário",
-    "GITBOOK_LINK": "Publicado com GitBook",
-    "SUMMARY": "Tabela de conteúdos",
-    "SUMMARY_INTRODUCTION": "Introdução",
-    "SUMMARY_TOGGLE": "Tabela de conteúdos",
-    "SEARCH_TOGGLE": "Pesquise",
-    "SEARCH_PLACEHOLDER": "Escreva para pesquisar",
-    "FONTSETTINGS_TOGGLE": "Configurações de fonte",
-    "SHARE_TOGGLE": "Compartilhar",
-    "SHARE_ON": "Compartilhar no {{platform}}",
-    "FONTSETTINGS_WHITE": "Claro",
-    "FONTSETTINGS_SEPIA": "Sépia",
-    "FONTSETTINGS_NIGHT": "Noite",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/ro.json b/theme/i18n/ro.json
deleted file mode 100644
index 24295a4..0000000
--- a/theme/i18n/ro.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Alege o limba",
-    "GLOSSARY": "Glosar",
-    "GLOSSARY_INDEX": "Index",
-    "GLOSSARY_OPEN": "Glosar",
-    "GITBOOK_LINK": "Publicata cu GitBook",
-    "SUMMARY": "Cuprins",
-    "SUMMARY_INTRODUCTION": "Introducere",
-    "SUMMARY_TOGGLE": "Cuprins",
-    "SEARCH_TOGGLE": "Cauta",
-    "SEARCH_PLACEHOLDER": "Ce cauti",
-    "FONTSETTINGS_TOGGLE": "Setari de font",
-    "SHARE_TOGGLE": "Distribuie",
-    "SHARE_ON": "Distribuie pe {{platform}}",
-    "FONTSETTINGS_WHITE": "Alb",
-    "FONTSETTINGS_SEPIA": "Sepia",
-    "FONTSETTINGS_NIGHT": "Noapte",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/ru.json b/theme/i18n/ru.json
deleted file mode 100644
index 9e6b9dd..0000000
--- a/theme/i18n/ru.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Выберите язык",
-    "GLOSSARY": "Алфавитный указатель",
-    "GLOSSARY_INDEX": "Алфавитный указатель",
-    "GLOSSARY_OPEN": "Алфавитный указатель",
-    "GITBOOK_LINK": "Опубликовано с помощью GitBook",
-    "SUMMARY": "Содержание",
-    "SUMMARY_INTRODUCTION": "Введение",
-    "SUMMARY_TOGGLE": "Содержание",
-    "SEARCH_TOGGLE": "Поиск",
-    "SEARCH_PLACEHOLDER": "Введите условия поиска",
-    "FONTSETTINGS_TOGGLE": "Шрифт",
-    "SHARE_TOGGLE": "Поделиться",
-    "SHARE_ON": "Поделиться в {{platform}}",
-    "FONTSETTINGS_WHITE": "Светлый",
-    "FONTSETTINGS_SEPIA": "Сепия",
-    "FONTSETTINGS_NIGHT": "Тёмный",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
\ No newline at end of file
diff --git a/theme/i18n/sv.json b/theme/i18n/sv.json
deleted file mode 100644
index 2e2f6ac..0000000
--- a/theme/i18n/sv.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Välj språk",
-    "GLOSSARY": "Gloslista",
-    "GLOSSARY_INDEX": "Index",
-    "GLOSSARY_OPEN": "Gloslista",
-    "GITBOOK_LINK": "Publicera med GitBook",
-    "SUMMARY": "Innehållsförteckning",
-    "SUMMARY_INTRODUCTION": "Inledning",
-    "SUMMARY_TOGGLE": "Innehållsförteckning",
-    "SEARCH_TOGGLE": "Sök",
-    "SEARCH_PLACEHOLDER": "Skriv sökord",
-    "FONTSETTINGS_TOGGLE": "Textinställningar",
-    "SHARE_TOGGLE": "Dela",
-    "SHARE_ON": "Dela på {{platform}}",
-    "FONTSETTINGS_WHITE": "Ljus",
-    "FONTSETTINGS_SEPIA": "Sepia",
-    "FONTSETTINGS_NIGHT": "Mörk",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/tr.json b/theme/i18n/tr.json
deleted file mode 100644
index d92d5a2..0000000
--- a/theme/i18n/tr.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Dil seçimi",
-    "GLOSSARY": "Sözlük",
-    "GLOSSARY_INDEX": "Dizin",
-    "GLOSSARY_OPEN": "Sözlük",
-    "GITBOOK_LINK": "GitBook ile yayınla",
-    "SUMMARY": "İçindekiler",
-    "SUMMARY_INTRODUCTION": "Giriş",
-    "SUMMARY_TOGGLE": "İçindekiler",
-    "SEARCH_TOGGLE": "Arama",
-    "SEARCH_PLACEHOLDER": "Aramak istediğiniz",
-    "FONTSETTINGS_TOGGLE": "Font Ayarları",
-    "SHARE_TOGGLE": "Paylaş",
-    "SHARE_ON": "{{platform}} ile paylaş",
-    "FONTSETTINGS_WHITE": "Beyaz",
-    "FONTSETTINGS_SEPIA": "Sepya",
-    "FONTSETTINGS_NIGHT": "Karanlık",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/uk.json b/theme/i18n/uk.json
deleted file mode 100644
index 805026d..0000000
--- a/theme/i18n/uk.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Виберіть мову",
-    "GLOSSARY": "Глосарій",
-    "GLOSSARY_INDEX": "Глосарій",
-    "GLOSSARY_OPEN": "Глосарій",
-    "GITBOOK_LINK": "Опубліковано за допомогою GitBook",
-    "SUMMARY": "Зміст",
-    "SUMMARY_INTRODUCTION": "Вступ",
-    "SUMMARY_TOGGLE": "Зміст",
-    "SEARCH_TOGGLE": "Пошук",
-    "SEARCH_PLACEHOLDER": "Введіть для пошуку",
-    "FONTSETTINGS_TOGGLE": "Шрифт",
-    "SHARE_TOGGLE": "Поділиться",
-    "SHARE_ON": "Поділитися в {{platform}}",
-    "FONTSETTINGS_WHITE": "Світлий",
-    "FONTSETTINGS_SEPIA": "Сепія",
-    "FONTSETTINGS_NIGHT": "Темний",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
\ No newline at end of file
diff --git a/theme/i18n/vi.json b/theme/i18n/vi.json
deleted file mode 100644
index 0addb8e..0000000
--- a/theme/i18n/vi.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "Lựa chọn ngôn ngữ",
-    "GLOSSARY": "Chú giải",
-    "GLOSSARY_INDEX": "Chỉ mục",
-    "GLOSSARY_OPEN": "Chú giải",
-    "GITBOOK_LINK": "Xuất bản với GitBook",
-    "SUMMARY": "Mục Lục",
-    "SUMMARY_INTRODUCTION": "Giới thiệu",
-    "SUMMARY_TOGGLE": "Mục Lục",
-    "SEARCH_TOGGLE": "Tìm kiếm",
-    "SEARCH_PLACEHOLDER": "Nhập thông tin cần tìm",
-    "FONTSETTINGS_TOGGLE": "Tùy chỉnh phông chữ",
-    "SHARE_TOGGLE": "Chia sẻ",
-    "SHARE_ON": "Chia sẻ trên {{platform}}",
-    "FONTSETTINGS_WHITE": "Sáng",
-    "FONTSETTINGS_SEPIA": "Vàng nâu",
-    "FONTSETTINGS_NIGHT": "Tối",
-    "FONTSETTINGS_SANS": "Sans",
-    "FONTSETTINGS_SERIF": "Serif"
-}
diff --git a/theme/i18n/zh-hans.json b/theme/i18n/zh-hans.json
deleted file mode 100644
index 8aa372c..0000000
--- a/theme/i18n/zh-hans.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "选择一种语言",
-    "GLOSSARY": "术语表",
-    "GLOSSARY_INDEX": "索引",
-    "GLOSSARY_OPEN": "术语表",
-    "GITBOOK_LINK": "本书使用 GitBook 发布",
-    "SUMMARY": "目录",
-    "SUMMARY_INTRODUCTION": "介绍",
-    "SUMMARY_TOGGLE": "目录",
-    "SEARCH_TOGGLE": "搜索",
-    "SEARCH_PLACEHOLDER": "输入并搜索",
-    "FONTSETTINGS_TOGGLE": "字体设置",
-    "SHARE_TOGGLE": "分享",
-    "SHARE_ON": "分享到 {{platform}}",
-    "FONTSETTINGS_WHITE": "白色",
-    "FONTSETTINGS_SEPIA": "棕褐色",
-    "FONTSETTINGS_NIGHT": "夜间",
-    "FONTSETTINGS_SANS": "无衬线体",
-    "FONTSETTINGS_SERIF": "衬线体"
-}
diff --git a/theme/i18n/zh-tw.json b/theme/i18n/zh-tw.json
deleted file mode 100644
index d5ff1ad..0000000
--- a/theme/i18n/zh-tw.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-    "LANGS_CHOOSE": "選擇一種語言",
-    "GLOSSARY": "術語表",
-    "GLOSSARY_INDEX": "索引",
-    "GLOSSARY_OPEN": "術語表",
-    "GITBOOK_LINK": "本書使用 GitBook 釋出",
-    "SUMMARY": "目錄",
-    "SUMMARY_INTRODUCTION": "介紹",
-    "SUMMARY_TOGGLE": "目錄",
-    "SEARCH_TOGGLE": "搜尋",
-    "SEARCH_PLACEHOLDER": "輸入並搜尋",
-    "FONTSETTINGS_TOGGLE": "字型設定",
-    "SHARE_TOGGLE": "分享",
-    "SHARE_ON": "分享到 {{platform}}",
-    "FONTSETTINGS_WHITE": "白色",
-    "FONTSETTINGS_SEPIA": "棕褐色",
-    "FONTSETTINGS_NIGHT": "夜間",
-    "FONTSETTINGS_SANS": "無襯線體",
-    "FONTSETTINGS_SERIF": "襯線體"
-}
diff --git a/theme/javascript/dropdown.js b/theme/javascript/dropdown.js
deleted file mode 100644
index d6fc548..0000000
--- a/theme/javascript/dropdown.js
+++ /dev/null
@@ -1,25 +0,0 @@
-var $ = require('jquery');
-
-function toggleDropdown(e) {
-    var $dropdown = $(e.currentTarget).parent().find('.dropdown-menu');
-
-    $dropdown.toggleClass('open');
-    e.stopPropagation();
-    e.preventDefault();
-}
-
-function closeDropdown(e) {
-    $('.dropdown-menu').removeClass('open');
-}
-
-// Bind all dropdown
-function init() {
-    $(document).on('click', '.toggle-dropdown', toggleDropdown);
-    $(document).on('click', '.dropdown-menu', function(e){ e.stopPropagation(); });
-    $(document).on('click', closeDropdown);
-}
-
-module.exports = {
-    init: init
-};
-
diff --git a/theme/javascript/events.js b/theme/javascript/events.js
deleted file mode 100644
index 9b9a730..0000000
--- a/theme/javascript/events.js
+++ /dev/null
@@ -1,4 +0,0 @@
-var $ = require('jquery');
-
-module.exports = $({});
-
diff --git a/theme/javascript/index.js b/theme/javascript/index.js
deleted file mode 100755
index b22f810..0000000
--- a/theme/javascript/index.js
+++ /dev/null
@@ -1,84 +0,0 @@
-var $ = require('jquery');
-var _ = require('lodash');
-
-var storage = require('./storage');
-var dropdown = require('./dropdown');
-var events = require('./events');
-var state = require('./state');
-var keyboard = require('./keyboard');
-var navigation = require('./navigation');
-var sidebar = require('./sidebar');
-var toolbar = require('./toolbar');
-
-
-function start(config) {
-    // Init sidebar
-    sidebar.init();
-
-    // Init keyboard
-    keyboard.init();
-
-    // Bind dropdown
-    dropdown.init();
-
-    // Init navigation
-    navigation.init();
-
-
-    // Add action to toggle sidebar
-    toolbar.createButton({
-        index: 0,
-        icon: 'fa fa-align-justify',
-        onClick: function(e) {
-            e.preventDefault();
-            sidebar.toggle();
-        }
-    });
-
-    events.trigger('start', config);
-    navigation.notify();
-}
-
-// Export APIs for plugins
-var gitbook = {
-    start: start,
-    events: events,
-    state: state,
-
-    // UI sections
-    toolbar: toolbar,
-    sidebar: sidebar,
-
-    // Read/Write the localstorage
-    storage: storage,
-
-    // Create keyboard shortcuts
-    keyboard: keyboard
-};
-
-
-// Modules mapping for plugins
-var MODULES = {
-    'gitbook': gitbook,
-    'jquery': $,
-    'lodash': _
-};
-
-window.gitbook = gitbook;
-window.$ = $;
-window.jQuery = $;
-window.require = function(mods, fn) {
-    mods = _.map(mods, function(mod) {
-        mod = mod.toLowerCase();
-        if (!MODULES[mod]) {
-            throw new Error('GitBook module '+mod+' doesn\'t exist');
-        }
-
-        return MODULES[mod];
-    });
-
-    fn.apply(null, mods);
-};
-
-module.exports = {};
-
diff --git a/theme/javascript/keyboard.js b/theme/javascript/keyboard.js
deleted file mode 100644
index ab0cef6..0000000
--- a/theme/javascript/keyboard.js
+++ /dev/null
@@ -1,36 +0,0 @@
-var Mousetrap = require('mousetrap');
-
-var navigation = require('./navigation');
-var sidebar = require('./sidebar');
-
-// Bind a keyboard shortcuts
-function bindShortcut(keys, fn) {
-    Mousetrap.bind(keys, function(e) {
-        fn();
-        return false;
-    });
-}
-
-
-// Bind keyboard shortcuts
-function init() {
-    // Next
-    bindShortcut(['right'], function(e) {
-        navigation.goNext();
-    });
-
-    // Prev
-    bindShortcut(['left'], function(e) {
-        navigation.goPrev();
-    });
-
-    // Toggle Summary
-    bindShortcut(['s'], function(e) {
-        sidebar.toggle();
-    });
-}
-
-module.exports = {
-    init: init,
-    bind: bindShortcut
-};
diff --git a/theme/javascript/loading.js b/theme/javascript/loading.js
deleted file mode 100644
index 797b487..0000000
--- a/theme/javascript/loading.js
+++ /dev/null
@@ -1,14 +0,0 @@
-var state = require('./state');
-
-function showLoading(p) {
-    state.$book.addClass('is-loading');
-    p.always(function() {
-        state.$book.removeClass('is-loading');
-    });
-
-    return p;
-}
-
-module.exports = {
-    show: showLoading
-};
diff --git a/theme/javascript/navigation.js b/theme/javascript/navigation.js
deleted file mode 100644
index dd3bf2e..0000000
--- a/theme/javascript/navigation.js
+++ /dev/null
@@ -1,165 +0,0 @@
-var $ = require('jquery');
-var url = require('url');
-
-var events = require('./events');
-var state = require('./state');
-var loading = require('./loading');
-
-
-var usePushState = (typeof history.pushState !== 'undefined');
-
-function handleNavigation(relativeUrl, push) {
-    var uri = url.resolve(window.location.pathname, relativeUrl);
-
-    if (!usePushState) {
-        // Refresh the page to the new URL if pushState not supported
-        location.href = relativeUrl;
-        return;
-    }
-
-    return loading.show($.get(uri)
-    .done(function (html) {
-        // Push url to history
-        if (push) history.pushState({ path: uri }, null, uri);
-
-        // Replace html content
-        html = html.replace( /<(\/?)(html|head|body)([^>]*)>/ig, function(a,b,c,d){
-            return '<' + b + 'div' + ( b ? '' : ' data-element="' + c + '"' ) + d + '>';
-        });
-
-        var $page = $(html);
-        var $pageHead = $page.find('[data-element=head]');
-        var $pageBody = $page.find('.book');
-
-        // Merge heads
-        // !! Warning !!: we only update necessary portions to avoid strange behavior (page flickering etc ...)
-
-        // Update title
-        document.title = $pageHead.find('title').text();
-
-        // Reference to $('head');
-        var $head = $('head');
-
-        // Update next & prev <link> tags
-        // Remove old
-        $head.find('link[rel=prev]').remove();
-        $head.find('link[rel=next]').remove();
-
-        // Add new next * prev <link> tags
-        $head.append($pageHead.find('link[rel=prev]'));
-        $head.append($pageHead.find('link[rel=next]'));
-
-        // Merge body
-        var bodyClass = $('.book').attr('class');
-        var scrollPosition = $('.book-summary .summary').scrollTop();
-        $pageBody.toggleClass('with-summary', $('.book').hasClass('with-summary'));
-
-        $('.book').replaceWith($pageBody);
-        $('.book').attr('class', bodyClass);
-        $('.book-summary .summary').scrollTop(scrollPosition);
-
-        // Update state
-        state.update($('html'));
-        preparePage();
-    })
-    .fail(function (e) {
-        location.href = relativeUrl;
-    }));
-}
-
-function updateNavigationPosition() {
-    var bodyInnerWidth, pageWrapperWidth;
-
-    bodyInnerWidth = parseInt($('.body-inner').css('width'), 10);
-    pageWrapperWidth = parseInt($('.page-wrapper').css('width'), 10);
-    $('.navigation-next').css('margin-right', (bodyInnerWidth - pageWrapperWidth) + 'px');
-}
-
-function notifyPageChange() {
-    events.trigger('page.change');
-}
-
-function preparePage(notify) {
-    var $bookBody = $('.book-body');
-    var $bookInner = $bookBody.find('.body-inner');
-    var $pageWrapper = $bookInner.find('.page-wrapper');
-
-    // Update navigation position
-    updateNavigationPosition();
-
-    // Focus on content
-    $pageWrapper.focus();
-
-    // Reset scroll
-    $bookInner.scrollTop(0);
-    $bookBody.scrollTop(0);
-
-    // Notify
-    if (notify !== false) notifyPageChange();
-}
-
-function isLeftClickEvent(e) {
-    return e.button === 0;
-}
-
-function isModifiedEvent(e) {
-    return !!(e.metaKey || e.altKey || e.ctrlKey || e.shiftKey);
-}
-
-function handlePagination(e) {
-    if (isModifiedEvent(e) || !isLeftClickEvent(e)) {
-        return;
-    }
-
-    e.stopPropagation();
-    e.preventDefault();
-
-    var url = $(this).attr('href');
-    if (url) handleNavigation(url, true);
-}
-
-function goNext() {
-    var url = $('.navigation-next').attr('href');
-    if (url) handleNavigation(url, true);
-}
-
-function goPrev() {
-    var url = $('.navigation-prev').attr('href');
-    if (url) handleNavigation(url, true);
-}
-
-
-function init() {
-    // Prevent cache so that using the back button works
-    // See: http://stackoverflow.com/a/15805399/983070
-    $.ajaxSetup({
-        cache: false
-    });
-
-    // Recreate first page when the page loads.
-    history.replaceState({ path: window.location.href }, '');
-
-    // Back Button Hijacking :(
-    window.onpopstate = function (event) {
-        if (event.state === null) {
-            return;
-        }
-        return handleNavigation(event.state.path, false);
-    };
-
-    $(document).on('click', '.navigation-prev', handlePagination);
-    $(document).on('click', '.navigation-next', handlePagination);
-    $(document).on('click', '.summary [data-path] a', handlePagination);
-
-    $(window).resize(updateNavigationPosition);
-
-    // Prepare current page
-    preparePage(false);
-}
-
-module.exports = {
-    init: init,
-    goNext: goNext,
-    goPrev: goPrev,
-    notify: notifyPageChange
-};
diff --git a/theme/javascript/platform.js b/theme/javascript/platform.js
deleted file mode 100644
index b6fb453..0000000
--- a/theme/javascript/platform.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module.exports = {
-    isMobile: function() {
-        return (document.width <= 600);
-    }
-};
diff --git a/theme/javascript/sidebar.js b/theme/javascript/sidebar.js
deleted file mode 100644
index 9fc1e8e..0000000
--- a/theme/javascript/sidebar.js
+++ /dev/null
@@ -1,56 +0,0 @@
-var $ = require('jquery');
-var _ = require('lodash');
-
-var storage = require('./storage');
-var platform = require('./platform');
-var state = require('./state');
-
-
-// Toggle sidebar with or withour animation
-function toggleSidebar(_state, animation) {
-    if (state != null && isOpen() == _state) return;
-    if (animation == null) animation = true;
-
-    state.$book.toggleClass('without-animation', !animation);
-    state.$book.toggleClass('with-summary', _state);
-
-    storage.set('sidebar', isOpen());
-}
-
-// Return true if sidebar is open
-function isOpen() {
-    return state.$book.hasClass('with-summary');
-}
-
-// Prepare sidebar: state and toggle button
-function init() {
-    // Init last state if not mobile
-    if (!platform.isMobile()) {
-        toggleSidebar(storage.get('sidebar', true), false);
-    }
-
-    // Close sidebar after clicking a link on mobile
-    $(document).on('click', '.book-summary li.chapter a', function(e) {
-        if (platform.isMobile()) toggleSidebar(false, false);
-    });
-}
-
-// Filter summary with a list of path
-function filterSummary(paths) {
-    var $summary = $('.book-summary');
-
-    $summary.find('li').each(function() {
-        var path = $(this).data('path');
-        var st = paths == null || _.contains(paths, path);
-
-        $(this).toggle(st);
-        if (st) $(this).parents('li').show();
-    });
-}
-
-module.exports = {
-    init: init,
-    isOpen: isOpen,
-    toggle: toggleSidebar,
-    filter: filterSummary
-};
diff --git a/theme/javascript/state.js b/theme/javascript/state.js
deleted file mode 100644
index ef1eb04..0000000
--- a/theme/javascript/state.js
+++ /dev/null
@@ -1,38 +0,0 @@
-var $ = require('jquery');
-var url = require('url');
-var path = require('path');
-
-var state = {};
-
-state.update = function(dom) {
-    var $book = $(dom.find('.book'));
-
-    state.$book = $book;
-    state.level = $book.data('level');
-    state.basePath = $book.data('basepath');
-
-    // If book is multilingual, language of this book
-    state.innerLanguage = $book.data('innerlanguage');
-
-    // Date of build
-    state.revision = $book.data('revision');
-
-    // Original path of the file
-    state.filepath = $book.data('filepath');
-
-    // Title of the chapter
-    state.chapterTitle = $book.data('chapter-title');
-
-    // Absolute url to the root of the book (inner book)
-    state.root = url.resolve(
-        location.protocol+'//'+location.host,
-        path.dirname(path.resolve(location.pathname.replace(/\/$/, '/index.html'), state.basePath))
-    ).replace(/\/?$/, '/');
-
-    // Absolute root to the language (for multilingual book)
-    state.bookRoot = state.innerLanguage? url.resolve(state.root, '..') : state.root;
-};
-
-state.update($);
-
-module.exports = state;
diff --git a/theme/javascript/storage.js b/theme/javascript/storage.js
deleted file mode 100644
index 7a7643c..0000000
--- a/theme/javascript/storage.js
+++ /dev/null
@@ -1,37 +0,0 @@
-var baseKey = '';
-
-/*
- * Simple module for storing data in the browser's local storage
- */
-module.exports = {
-    setBaseKey: function(key) {
-        baseKey = key;
-    },
-
-    // Write something in localstorage
-    set: function(key, value) {
-        key = baseKey+':'+key;
-
-        try {
-            localStorage[key] = JSON.stringify(value);
-        } catch(e) {}
-    },
-
-    // Read a value from localstorage
-    get: function(key, def) {
-        key = baseKey+':'+key;
-        if (localStorage[key] === undefined) return def;
-        try {
-            var v = JSON.parse(localStorage[key]);
-            return v == null ? def : v;;
-        } catch(err) {
-            return localStorage[key] || def;
-        }
-    },
-
-    // Remove a key from localstorage
-    remove: function(key) {
-        key = baseKey+':'+key;
-        localStorage.removeItem(key);
-    }
-};
diff --git a/theme/javascript/toolbar.js b/theme/javascript/toolbar.js
deleted file mode 100644
index 647578f..0000000
--- a/theme/javascript/toolbar.js
+++ /dev/null
@@ -1,181 +0,0 @@
-var $ = require('jquery');
-var _ = require('lodash');
-
-var events = require('./events');
-
-// List of created buttons
-var buttons = [];
-
-// Insert a jquery element at a specific position
-function insertAt(parent, selector, index, element) {
-    var lastIndex = parent.children(selector).size();
-    if (index < 0) {
-        index = Math.max(0, lastIndex + 1 + index);
-    }
-    parent.append(element);
-
-    if (index < lastIndex) {
-        parent.children(selector).eq(index).before(parent.children(selector).last());
-    }
-}
-
-// Default click handler
-function defaultOnClick(e) {
-    e.preventDefault();
-}
-
-// Create a dropdown menu
-function createDropdownMenu(dropdown) {
-    var $menu = $('<div>', {
-        'class': 'dropdown-menu',
-        'html': '<div class="dropdown-caret"><span class="caret-outer"></span><span class="caret-inner"></span></div>'
-    });
-
-    if (_.isString(dropdown)) {
-        $menu.append(dropdown);
-    } else {
-        var groups = _.map(dropdown, function(group) {
-            if (_.isArray(group)) return group;
-            else return [group];
-        });
-
-        // Create buttons groups
-        _.each(groups, function(group) {
-            var $group = $('<div>', {
-                'class': 'buttons'
-            });
-            var sizeClass = 'size-'+group.length;
-
-            // Append buttons
-            _.each(group, function(btn) {
-                btn = _.defaults(btn || {}, {
-                    text: '',
-                    className: '',
-                    onClick: defaultOnClick
-                });
-
-                var $btn = $('<button>', {
-                    'class': 'button '+sizeClass+' '+btn.className,
-                    'text': btn.text
-                });
-                $btn.click(btn.onClick);
-
-                $group.append($btn);
-            });
-
-
-            $menu.append($group);
-        });
-
-    }
-
-
-    return $menu;
-}
-
-// Create a new button in the toolbar
-function createButton(opts) {
-    opts = _.defaults(opts || {}, {
-        // Aria label for the button
-        label: '',
-
-        // Icon to show
-        icon: '',
-
-        // Inner text
-        text: '',
-
-        // Right or left position
-        position: 'left',
-
-        // Other class name to add to the button
-        className: '',
-
-        // Triggered when user click on the button
-        onClick: defaultOnClick,
-
-        // Button is a dropdown
-        dropdown: null,
-
-        // Position in the toolbar
-        index: null
-    });
-
-    buttons.push(opts);
-    updateButton(opts);
-}
-
-// Update a button
-function updateButton(opts) {
-    var $result;
-    var $toolbar = $('.book-header');
-    var $title = $toolbar.find('h1');
-
-    // Build class name
-    var positionClass = 'pull-'+opts.position;
-
-    // Create button
-    var $btn = $('<a>', {
-        'class': 'btn',
-        'text': opts.text? ' ' + opts.text : '',
-        'aria-label': opts.label,
-        'href': '#'
-    });
-
-    // Bind click
-    $btn.click(opts.onClick);
-
-    // Prepend icon
-    if (opts.icon) {
-        $('<i>', {
-            'class': opts.icon
-        }).prependTo($btn);
-    }
-
-    // Prepare dropdown
-    if (opts.dropdown) {
-        var $container = $('<div>', {
-            'class': 'dropdown '+positionClass+' '+opts.className
-        });
-
-        // Add button to container
-        $btn.addClass('toggle-dropdown');
-        $container.append($btn);
-
-        // Create inner menu
-        var $menu = createDropdownMenu(opts.dropdown);
-
-        // Menu position
-        $menu.addClass('dropdown-'+(opts.position == 'right'? 'left' : 'right'));
-
-        $container.append($menu);
-        $result = $container;
-    } else {
-        $btn.addClass(positionClass);
-        $btn.addClass(opts.className);
-        $result = $btn;
-    }
-
-    $result.addClass('js-toolbar-action');
-
-    if (_.isNumber(opts.index) && opts.index >= 0) {
-        insertAt($toolbar, '.btn, .dropdown, h1', opts.index, $result);
-    } else {
-        $result.insertBefore($title);
-    }
-}
-
-// Update all buttons
-function updateAllButtons() {
-    $('.js-toolbar-action').remove();
-    _.each(buttons, updateButton);
-}
-
-// When page changed, reset buttons
-events.bind('page.change', function() {
-    updateAllButtons();
-});
-
-module.exports = {
-    createButton: createButton
-};
diff --git a/theme/stylesheets/base/mixins.less b/theme/stylesheets/base/mixins.less
deleted file mode 100644
index e82f41e..0000000
--- a/theme/stylesheets/base/mixins.less
+++ /dev/null
@@ -1,32 +0,0 @@
-@import "../../../node_modules/gitbook-markdown-css/less/mixin.less";
-
-.link-inherit {
-    color: inherit;
-
-    &:hover, &:focus {
-        color: inherit;
-    }
-}
-
-.transition-transform(@transition) {
-  -webkit-transition: -webkit-transform @transition;
-     -moz-transition: -moz-transform @transition;
-       -o-transition: -o-transform @transition;
-          transition: transform @transition;
-}
-
-.hidden {
-    display: none;
-}
-
-.box-sizing(@value) {
-    -moz-box-sizing: @value;
-    box-sizing: @value;
-}
-
-.text-adjust(@value) {
-    text-size-adjust: @value;
-    -ms-text-size-adjust: @value;
-    -webkit-text-size-adjust: @value;
-}
-
diff --git a/theme/stylesheets/base/normalize.less b/theme/stylesheets/base/normalize.less
deleted file mode 100644
index 559de6a..0000000
--- a/theme/stylesheets/base/normalize.less
+++ /dev/null
@@ -1,396 +0,0 @@
-/*! normalize.css v2.1.0 | MIT License | git.io/normalize */
-
-/* ==========================================================================
-   HTML5 display definitions
-   ========================================================================== */
-
-/**
- * Correct `block` display not defined in IE 8/9.
- */
-
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-hgroup,
-main,
-nav,
-section,
-summary {
-    display: block;
-}
-
-/**
- * Correct `inline-block` display not defined in IE 8/9.
- */
-
-audio,
-canvas,
-video {
-    display: inline-block;
-}
-
-/**
- * Prevent modern browsers from displaying `audio` without controls.
- * Remove excess height in iOS 5 devices.
- */
-
-audio:not([controls]) {
-    display: none;
-    height: 0;
-}
-
-/**
- * Address styling not present in IE 8/9.
- */
-
-[hidden] {
-    display: none;
-}
-
-/* ==========================================================================
-   Base
-   ========================================================================== */
-
-/**
- * 1. Set default font family to sans-serif.
- * 2. Prevent iOS text size adjust after orientation change, without disabling
- *    user zoom.
- */
-
-html {
-    font-family: sans-serif; /* 1 */
-    -webkit-text-size-adjust: 100%; /* 2 */
-    -ms-text-size-adjust: 100%; /* 2 */
-}
-
-/**
- * Remove default margin.
- */
-
-body {
-    margin: 0;
-}
-
-/* ==========================================================================
-   Links
-   ========================================================================== */
-
-/**
- * Address `outline` inconsistency between Chrome and other browsers.
- */
-
-a:focus {
-    outline: thin dotted;
-}
-
-/**
- * Improve readability when focused and also mouse hovered in all browsers.
- */
-
-a:active,
-a:hover {
-    outline: 0;
-}
-
-/* ==========================================================================
-   Typography
-   ========================================================================== */
-
-/**
- * Address variable `h1` font-size and margin within `section` and `article`
- * contexts in Firefox 4+, Safari 5, and Chrome.
- */
-
-h1 {
-    font-size: 2em;
-    margin: 0.67em 0;
-}
-
-/**
- * Address styling not present in IE 8/9, Safari 5, and Chrome.
- */
-
-abbr[title] {
-    border-bottom: 1px dotted;
-}
-
-/**
- * Address style set to `bolder` in Firefox 4+, Safari 5, and Chrome.
- */
-
-b,
-strong {
-    font-weight: bold;
-}
-
-/**
- * Address styling not present in Safari 5 and Chrome.
- */
-
-dfn {
-    font-style: italic;
-}
-
-/**
- * Address differences between Firefox and other browsers.
- */
-
-hr {
-    -moz-box-sizing: content-box;
-    box-sizing: content-box;
-    height: 0;
-}
-
-/**
- * Address styling not present in IE 8/9.
- */
-
-mark {
-    background: #ff0;
-    color: #000;
-}
-
-/**
- * Correct font family set oddly in Safari 5 and Chrome.
- */
-
-code,
-kbd,
-pre,
-samp {
-    font-family: monospace, serif;
-    font-size: 1em;
-}
-
-/**
- * Improve readability of pre-formatted text in all browsers.
- */
-
-pre {
-    white-space: pre-wrap;
-}
-
-/**
- * Set consistent quote types.
- */
-
-q {
-    quotes: "\201C" "\201D" "\2018" "\2019";
-}
-
-/**
- * Address inconsistent and variable font size in all browsers.
- */
-
-small {
-    font-size: 80%;
-}
-
-/**
- * Prevent `sub` and `sup` affecting `line-height` in all browsers.
- */
-
-sub,
-sup {
-    font-size: 75%;
-    line-height: 0;
-    position: relative;
-    vertical-align: baseline;
-}
-
-sup {
-    top: -0.5em;
-}
-
-sub {
-    bottom: -0.25em;
-}
-
-/* ==========================================================================
-   Embedded content
-   ========================================================================== */
-
-/**
- * Remove border when inside `a` element in IE 8/9.
- */
-
-img {
-    border: 0;
-}
-
-/**
- * Correct overflow displayed oddly in IE 9.
- */
-
-svg:not(:root) {
-    overflow: hidden;
-}
-
-/* ==========================================================================
-   Figures
-   ========================================================================== */
-
-/**
- * Address margin not present in IE 8/9 and Safari 5.
- */
-
-figure {
-    margin: 0;
-}
-
-/* ==========================================================================
-   Forms
-   ========================================================================== */
-
-/**
- * Define consistent border, margin, and padding.
- */
-
-fieldset {
-    border: 1px solid #c0c0c0;
-    margin: 0 2px;
-    padding: 0.35em 0.625em 0.75em;
-}
-
-/**
- * 1. Correct `color` not being inherited in IE 8/9.
- * 2. Remove padding so people aren't caught out if they zero out fieldsets.
- */
-
-legend {
-    border: 0; /* 1 */
-    padding: 0; /* 2 */
-}
-
-/**
- * 1. Correct font family not being inherited in all browsers.
- * 2. Correct font size not being inherited in all browsers.
- * 3. Address margins set differently in Firefox 4+, Safari 5, and Chrome.
- */
-
-button,
-input,
-select,
-textarea {
-    font-family: inherit; /* 1 */
-    font-size: 100%; /* 2 */
-    margin: 0; /* 3 */
-}
-
-/**
- * Address Firefox 4+ setting `line-height` on `input` using `!important` in
- * the UA stylesheet.
- */
-
-button,
-input {
-    line-height: normal;
-}
-
-/**
- * Address inconsistent `text-transform` inheritance for `button` and `select`.
- * All other form control elements do not inherit `text-transform` values.
- * Correct `button` style inheritance in Chrome, Safari 5+, and IE 8+.
- * Correct `select` style inheritance in Firefox 4+ and Opera.
- */
-
-button,
-select {
-    text-transform: none;
-}
-
-/**
- * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
- *    and `video` controls.
- * 2. Correct inability to style clickable `input` types in iOS.
- * 3. Improve usability and consistency of cursor style between image-type
- *    `input` and others.
- */
-
-button,
-html input[type="button"], /* 1 */
-input[type="reset"],
-input[type="submit"] {
-    -webkit-appearance: button; /* 2 */
-    cursor: pointer; /* 3 */
-}
-
-/**
- * Re-set default cursor for disabled elements.
- */
-
-button[disabled],
-html input[disabled] {
-    cursor: default;
-}
-
-/**
- * 1. Address box sizing set to `content-box` in IE 8/9.
- * 2. Remove excess padding in IE 8/9.
- */
-
-input[type="checkbox"],
-input[type="radio"] {
-    box-sizing: border-box; /* 1 */
-    padding: 0; /* 2 */
-}
-
-/**
- * 1. Address `appearance` set to `searchfield` in Safari 5 and Chrome.
- * 2. Address `box-sizing` set to `border-box` in Safari 5 and Chrome
- *    (include `-moz` to future-proof).
- */
-
-input[type="search"] {
-    -webkit-appearance: textfield; /* 1 */
-    -moz-box-sizing: content-box;
-    -webkit-box-sizing: content-box; /* 2 */
-    box-sizing: content-box;
-}
-
-/**
- * Remove inner padding and search cancel button in Safari 5 and Chrome
- * on OS X.
- */
-
-input[type="search"]::-webkit-search-cancel-button,
-input[type="search"]::-webkit-search-decoration {
-    -webkit-appearance: none;
-}
-
-/**
- * Remove inner padding and border in Firefox 4+.
- */
-
-button::-moz-focus-inner,
-input::-moz-focus-inner {
-    border: 0;
-    padding: 0;
-}
-
-/**
- * 1. Remove default vertical scrollbar in IE 8/9.
- * 2. Improve readability and alignment in all browsers.
- */
-
-textarea {
-    overflow: auto; /* 1 */
-    vertical-align: top; /* 2 */
-}
-
-/* ==========================================================================
-   Tables
-   ========================================================================== */
-
-/**
- * Remove most spacing between table cells.
- */
-
-table {
-    border-collapse: collapse;
-    border-spacing: 0;
-}
\ No newline at end of file
diff --git a/theme/stylesheets/base/preboot.less b/theme/stylesheets/base/preboot.less
deleted file mode 100644
index 6e7e6fb..0000000
--- a/theme/stylesheets/base/preboot.less
+++ /dev/null
@@ -1,406 +0,0 @@
-/*!
- * Preboot v2
- *
- * Open sourced under MIT license by @mdo.
- * Some variables and mixins from Bootstrap (Apache 2 license).
- */
-
-
-//
-// Variables
-// --------------------------------------------------
-
-// Grayscale
-@black-10:                 darken(#fff, 10%);
-@black-20:                 darken(#fff, 20%);
-@black-30:                 darken(#fff, 30%);
-@black-40:                 darken(#fff, 40%);
-@black-50:                 darken(#fff, 50%);
-@black-60:                 darken(#fff, 60%);
-@black-70:                 darken(#fff, 70%);
-@black-80:                 darken(#fff, 80%);
-@black-90:                 darken(#fff, 90%);
-
-// Brand colors
-@brand-primary:           #428bca;
-@brand-success:           #5cb85c;
-@brand-warning:           #f0ad4e;
-@brand-danger:            #d9534f;
-@brand-info:              #5bc0de;
-
-// Scaffolding
-@body-background:         #fff;
-@text-color:              @black-50;
-
-// Links
-@link-color:              @brand-primary;
-@link-color-hover:        darken(@link-color, 15%);
-
-// Typography
-@font-family-sans-serif:  "Helvetica Neue", Helvetica, Arial, sans-serif;
-@font-family-serif:       Georgia, "Times New Roman", Times, serif;
-@font-family-monospace:   Monaco, Menlo, Consolas, "Courier New", monospace;
-@font-family-base:        @font-family-sans-serif;
-
-@font-size-base:          14px;
-@font-size-large:         @font-size-base * 1.25; // ~18px
-@font-size-small:         @font-size-base * 0.85; // ~12px
-@font-size-mini:          @font-size-base * 0.75; // ~11px
-
-@line-height-base:        1.4;
-
-@headings-font-family:    inherit; // empty to use BS default, @font-family-base
-@headings-font-weight:    500;
-
-// Forms
-@input-color-placeholder: lighten(@text-color, 25%);
-
-// Grid
-// Used with the grid mixins below
-@grid-columns:          12;
-@grid-column-padding:   15px; // Left and right inner padding
-@grid-float-breakpoint: 768px;
-
-
-
-//
-// Grid system
-// --------------------------------------------------
-
-// Grid
-.make-row() {
-  // Negative margin the row out to align the content of columns
-  margin-left: -@grid-column-padding;
-  margin-right: -@grid-column-padding;
-  // Then clear the floated columns
-  .clearfix();
-}
-.make-column(@columns) {
-  @media (min-width: @grid-float-breakpoint) {
-    float: left;
-    // Calculate width based on number of columns available
-    width: percentage(@columns / @grid-columns);
-  }
-  // Prevent columns from collapsing when empty
-  min-height: 1px;
-  // Set inner padding as gutters instead of margin
-  padding-left: @grid-column-padding;
-  padding-right: @grid-column-padding;
-  // Proper box-model (padding doesn't add to width)
-  .box-sizing(border-box);
-}
-.make-column-offset(@columns) {
-  @media (min-width: @grid-float-breakpoint) {
-    margin-left: percentage(@columns / @grid-columns);
-  }
-}
-
-
-
-//
-// Mixins: vendor prefixes
-// --------------------------------------------------
-
-// Box sizing
-.box-sizing(@box-model) {
-  -webkit-box-sizing: @box-model; // Safari <= 5
-     -moz-box-sizing: @box-model; // Firefox <= 19
-          box-sizing: @box-model;
-}
-
-// Single side border-radius
-.border-top-radius(@radius) {
-  border-top-right-radius: @radius;
-   border-top-left-radius: @radius;
-}
-.border-right-radius(@radius) {
-  border-bottom-right-radius: @radius;
-     border-top-right-radius: @radius;
-}
-.border-bottom-radius(@radius) {
-  border-bottom-right-radius: @radius;
-   border-bottom-left-radius: @radius;
-}
-.border-left-radius(@radius) {
-  border-bottom-left-radius: @radius;
-     border-top-left-radius: @radius;
-}
-
-// Drop shadows
-.box-shadow(@shadow) {
-  -webkit-box-shadow: @shadow; // iOS <4.3 & Android <4.1
-          box-shadow: @shadow;
-}
-
-// Transitions
-.transition(@transition) {
-  -webkit-transition: @transition;
-     -moz-transition: @transition;
-       -o-transition: @transition;
-          transition: @transition;
-}
-.transition-delay(@transition-delay) {
-  -webkit-transition-delay: @transition-delay;
-     -moz-transition-delay: @transition-delay;
-       -o-transition-delay: @transition-delay;
-          transition-delay: @transition-delay;
-}
-.transition-duration(@transition-duration) {
-  -webkit-transition-duration: @transition-duration;
-     -moz-transition-duration: @transition-duration;
-       -o-transition-duration: @transition-duration;
-          transition-duration: @transition-duration;
-}
-
-// Transformations
-.rotate(@degrees) {
-  -webkit-transform: rotate(@degrees);
-     -moz-transform: rotate(@degrees);
-      -ms-transform: rotate(@degrees);
-       -o-transform: rotate(@degrees);
-          transform: rotate(@degrees);
-}
-.scale(@ratio) {
-  -webkit-transform: scale(@ratio);
-     -moz-transform: scale(@ratio);
-      -ms-transform: scale(@ratio);
-       -o-transform: scale(@ratio);
-          transform: scale(@ratio);
-}
-.translate(@x, @y) {
-  -webkit-transform: translate(@x, @y);
-     -moz-transform: translate(@x, @y);
-      -ms-transform: translate(@x, @y);
-       -o-transform: translate(@x, @y);
-          transform: translate(@x, @y);
-}
-.skew(@x, @y) {
-  -webkit-transform: skew(@x, @y);
-     -moz-transform: skew(@x, @y);
-      -ms-transform: skewX(@x) skewY(@y); // See https://github.com/twitter/bootstrap/issues/4885
-       -o-transform: skew(@x, @y);
-          transform: skew(@x, @y);
-  -webkit-backface-visibility: hidden; // See https://github.com/twitter/bootstrap/issues/5319
-}
-.translate3d(@x, @y, @z) {
-  -webkit-transform: translate3d(@x, @y, @z);
-     -moz-transform: translate3d(@x, @y, @z);
-       -o-transform: translate3d(@x, @y, @z);
-          transform: translate3d(@x, @y, @z);
-}
-
-// Backface visibility
-//
-// Prevent browsers from flickering when using CSS 3D transforms.
-// Default value is `visible`, but can be changed to `hidden
-// See git pull https://github.com/dannykeane/bootstrap.git backface-visibility for examples
-.backface-visibility(@visibility){
-  -webkit-backface-visibility: @visibility;
-     -moz-backface-visibility: @visibility;
-          backface-visibility: @visibility;
-}
-
-// User select
-//
-// For selecting text on the page
-.user-select(@select) {
-  -webkit-user-select: @select;
-     -moz-user-select: @select;
-      -ms-user-select: @select;
-       -o-user-select: @select;
-          user-select: @select;
-}
-
-// Opacity
-.opacity(@opacity) {
-  opacity: @opacity;
-  @opacity-ie: @opacity * 100;
-  filter: ~"alpha(opacity=@{opacity-ie})"; // IE8
-}
-
-// Placeholder text
-.placeholder(@color: @input-color-placeholder) {
-  &:-moz-placeholder            { color: @color; } // Firefox 4-18
-  &::-moz-placeholder           { color: @color; } // Firefox 19+
-  &:-ms-input-placeholder       { color: @color; } // Internet Explorer 10+
-  &::-webkit-input-placeholder  { color: @color; } // Safari and Chrome
-}
-
-// Resize anything
-.resizable(@direction) {
-  resize: @direction; // Options: horizontal, vertical, both
-  overflow: auto; // Safari fix
-}
-
-// CSS3 Content Columns
-.content-columns(@width, @count, @gap) {
-  -webkit-column-width: @width;
-     -moz-column-width: @width;
-          column-width: @width;
-  -webkit-column-count: @count;
-     -moz-column-count: @count;
-          column-count: @count;
-  -webkit-column-gap: @gap;
-     -moz-column-gap: @gap;
-          column-gap: @gap;
-}
-
-// Optional hyphenation
-.hyphens(@mode: auto) {
-  word-wrap: break-word;
-  -webkit-hyphens: @mode;
-     -moz-hyphens: @mode;
-      -ms-hyphens: @mode;
-       -o-hyphens: @mode;
-          hyphens: @mode;
-}
-
-// Gradients
-#gradient {
-  .horizontal(@startColor: #555, @endColor: #333) {
-    background-color: @endColor;
-    background-image: -moz-linear-gradient(left, @startColor, @endColor); // FF 3.6+
-    background-image: -webkit-gradient(linear, 0 0, 100% 0, from(@startColor), to(@endColor)); // Safari 4+, Chrome 2+
-    background-image: -webkit-linear-gradient(left, @startColor, @endColor); // Safari 5.1+, Chrome 10+
-    background-image: -o-linear-gradient(left, @startColor, @endColor); // Opera 11.10
-    background-image: linear-gradient(to right, @startColor, @endColor); // Standard, IE10
-    background-repeat: repeat-x;
-    filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=1)",argb(@startColor),argb(@endColor))); // IE9 and down
-  }
-  .vertical(@startColor: #555, @endColor: #333) {
-    background-color: @endColor;
-    background-image: -moz-linear-gradient(top, @startColor, @endColor); // FF 3.6+
-    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(@startColor), to(@endColor)); // Safari 4+, Chrome 2+
-    background-image: -webkit-linear-gradient(top, @startColor, @endColor); // Safari 5.1+, Chrome 10+
-    background-image: -o-linear-gradient(top, @startColor, @endColor); // Opera 11.10
-    background-image: linear-gradient(to bottom, @startColor, @endColor); // Standard, IE10
-    background-repeat: repeat-x;
-    filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down
-  }
-  .directional(@startColor: #555, @endColor: #333, @deg: 45deg) {
-    background-color: @endColor;
-    background-repeat: repeat-x;
-    background-image: -moz-linear-gradient(@deg, @startColor, @endColor); // FF 3.6+
-    background-image: -webkit-linear-gradient(@deg, @startColor, @endColor); // Safari 5.1+, Chrome 10+
-    background-image: -o-linear-gradient(@deg, @startColor, @endColor); // Opera 11.10
-    background-image: linear-gradient(@deg, @startColor, @endColor); // Standard, IE10
-  }
-  .horizontal-three-colors(@startColor: #00b3ee, @midColor: #7a43b6, @colorStop: 50%, @endColor: #c3325f) {
-    background-color: mix(@midColor, @endColor, 80%);
-    background-image: -webkit-gradient(left, linear, 0 0, 0 100%, from(@startColor), color-stop(@colorStop, @midColor), to(@endColor));
-    background-image: -webkit-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
-    background-image: -moz-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
-    background-image: -o-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
-    background-image: linear-gradient(to right, @startColor, @midColor @colorStop, @endColor);
-    background-repeat: no-repeat;
-    filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down, gets no color-stop at all for proper fallback
-  }
-  .vertical-three-colors(@startColor: #00b3ee, @midColor: #7a43b6, @colorStop: 50%, @endColor: #c3325f) {
-    background-color: mix(@midColor, @endColor, 80%);
-    background-image: -webkit-gradient(linear, 0 0, 0 100%, from(@startColor), color-stop(@colorStop, @midColor), to(@endColor));
-    background-image: -webkit-linear-gradient(@startColor, @midColor @colorStop, @endColor);
-    background-image: -moz-linear-gradient(top, @startColor, @midColor @colorStop, @endColor);
-    background-image: -o-linear-gradient(@startColor, @midColor @colorStop, @endColor);
-    background-image: linear-gradient(@startColor, @midColor @colorStop, @endColor);
-    background-repeat: no-repeat;
-    filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down, gets no color-stop at all for proper fallback
-  }
-  .radial(@innerColor: #555, @outerColor: #333) {
-    background-color: @outerColor;
-    background-image: -webkit-gradient(radial, center center, 0, center center, 460, from(@innerColor), to(@outerColor));
-    background-image: -webkit-radial-gradient(circle, @innerColor, @outerColor);
-    background-image: -moz-radial-gradient(circle, @innerColor, @outerColor);
-    background-image: -o-radial-gradient(circle, @innerColor, @outerColor);
-    background-repeat: no-repeat;
-  }
-  .striped(@color: #555, @angle: 45deg) {
-    background-color: @color;
-    background-image: -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.25, rgba(255,255,255,.15)), color-stop(.25, transparent), color-stop(.5, transparent), color-stop(.5, rgba(255,255,255,.15)), color-stop(.75, rgba(255,255,255,.15)), color-stop(.75, transparent), to(transparent));
-    background-image: -webkit-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
-    background-image: -moz-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
-    background-image: -o-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
-    background-image: linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
-  }
-}
-
-// Reset filters for IE
-//
-// Useful for when you want to remove a gradient from an element.
-.reset-filter() {
-  filter: e(%("progid:DXImageTransform.Microsoft.gradient(enabled = false)"));
-}
-
-
-
-//
-// Mixins: utilities
-// --------------------------------------------------
-
-// Clearfix
-//
-// Source: http://nicolasgallagher.com/micro-clearfix-hack/
-//
-// For modern browsers
-// 1. The space content is one way to avoid an Opera bug when the
-//    contenteditable attribute is included anywhere else in the document.
-//    Otherwise it causes space to appear at the top and bottom of elements
-//    that are clearfixed.
-// 2. The use of `table` rather than `block` is only necessary if using
-//    `:before` to contain the top-margins of child elements.
-.clearfix() {
-  *zoom: 1;
-  &:before,
-  &:after {
-    content: " "; // 1
-    display: table; // 2
-    // Fixes Opera/contenteditable bug:
-    // http://nicolasgallagher.com/micro-clearfix-hack/#comment-36952
-    line-height: 0;
-  }
-  &:after {
-    clear: both;
-  }
-}
-
-// Center-align a block level element
-.center-block() {
-  display: block;
-  margin-left: auto;
-  margin-right: auto;
-}
-
-// Sizing shortcuts
-.size(@width, @height) {
-  width: @width;
-  height: @height;
-}
-.square(@size) {
-  .size(@size, @size);
-}
-
-// Text overflow
-//
-// Requires inline-block or block for proper styling
-.text-truncate() {
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-}
-
-// Retina images
-//
-// Retina background-image support with non-retina fall back
-.retina-image(@file-1x, @file-2x, @width-1x, @height-1x) {
-  background-image: url("@{file-1x}");
-
-  @media
-  only screen and (-webkit-min-device-pixel-ratio: 2),
-  only screen and (   min--moz-device-pixel-ratio: 2),
-  only screen and (     -o-min-device-pixel-ratio: 2/1),
-  only screen and (        min-device-pixel-ratio: 2),
-  only screen and (                min-resolution: 192dpi),
-  only screen and (                min-resolution: 2dppx) {
-    background-image: url("@{file-2x}");
-    background-size: @width-1x @height-1x;
-  }
-}
\ No newline at end of file
diff --git a/theme/stylesheets/ebook.less b/theme/stylesheets/ebook.less
deleted file mode 100644
index c36b161..0000000
--- a/theme/stylesheets/ebook.less
+++ /dev/null
@@ -1 +0,0 @@
-@import "./ebook/base.less";
diff --git a/theme/stylesheets/ebook/base.less b/theme/stylesheets/ebook/base.less
deleted file mode 100644
index 463cd0d..0000000
--- a/theme/stylesheets/ebook/base.less
+++ /dev/null
@@ -1,23 +0,0 @@
-@import "../base/mixins.less";
-@import "./variables.less";
-
-@import "./summary.less";
-@import "./glossary.less";
-
-body {
-    font-family: @font-family-base;
-    color: @text-color;
-    .text-adjust(100%);
-}
-
-.page {
-    // Section and first titles
-    .section {
-        .gitbook-markdown(@md-color: @text-color, @md-line-height: 1.6, @md-link-color: @link-color);
-    }
-
-    // Hide the title (only used to build PDF table of content)
-    .book-chapter {
-        display: none;
-    }
-}
diff --git a/theme/stylesheets/ebook/glossary.less b/theme/stylesheets/ebook/glossary.less
deleted file mode 100644
index 8ed9a1b..0000000
--- a/theme/stylesheets/ebook/glossary.less
+++ /dev/null
@@ -1,28 +0,0 @@
-.section.glossary {
-    > h1 {
-        text-align: center;
-    }
-
-    .glossary-entry {
-        margin-bottom: 40px;
-
-        h2 {
-            a, a:hover {
-                color: inherit;
-                text-decoration: none;
-            }
-        }
-
-        .glossary-index {
-            list-style: none;
-            margin: 0px;
-            padding: 0px;
-
-            li {
-                display: inline;
-                margin: 0px 8px;
-                white-space: nowrap;
-            }
-        }
-    }
-}
diff --git a/theme/stylesheets/ebook/summary.less b/theme/stylesheets/ebook/summary.less
deleted file mode 100644
index 37d2bda..0000000
--- a/theme/stylesheets/ebook/summary.less
+++ /dev/null
@@ -1,56 +0,0 @@
-.section.toc {
-    > h1 {
-        text-align: center;
-    }
-
-    > ol {
-        margin: 0px;
-        padding: 0px;
-    }
-
-    li {
-        list-style: none;
-
-        .inner {
-            display: block;
-            border-bottom: 1px dotted #eee;
-            margin-bottom: 4px;
-
-            a, span {
-                padding-right: 5px;
-                border-bottom: 1px solid #fff;
-                margin-bottom: -1px;
-            }
-
-            .page {
-                float: right;
-                padding-left: 5px;
-            }
-        }
-
-        ol {
-            margin: 0px;
-            padding: 0px;
-            padding-left: 2em;
-        }
-    }
-}
-
-// For LTR, fix direction of table of content
-.dir-rtl {
-    .section.toc {
-        li {
-            .inner {
-                .page {
-                    float: left;
-                }
-            }
-
-            ol {
-                margin: 0px;
-                padding: 0px;
-                padding-right: 2em;
-            }
-        }
-    }
-}
diff --git a/theme/stylesheets/ebook/variables.less b/theme/stylesheets/ebook/variables.less
deleted file mode 100644
index fda5d47..0000000
--- a/theme/stylesheets/ebook/variables.less
+++ /dev/null
@@ -1,5 +0,0 @@
-@font-size-base:    13px;
-@font-family-base:  sans-serif;
-
-@text-color:        #000;
-@link-color:        #4183c4;
diff --git a/theme/stylesheets/epub.less b/theme/stylesheets/epub.less
deleted file mode 100644
index 16dd496..0000000
--- a/theme/stylesheets/epub.less
+++ /dev/null
@@ -1,3 +0,0 @@
-@import "./ebook/base.less";
-
-@font-family-base: serif;
diff --git a/theme/stylesheets/mobi.less b/theme/stylesheets/mobi.less
deleted file mode 100644
index a963197..0000000
--- a/theme/stylesheets/mobi.less
+++ /dev/null
@@ -1,23 +0,0 @@
-@import "./ebook/base.less";
-
-@font-family-base: serif;
-@link-color: #000;
-
-a {
-    color: #000;
-    text-decoration: underline !important;
-}
-
-.page-toc {
-    li {
-        list-style-type: lower-alpha;
-
-        .inner {
-            border: none;
-
-            span.page {
-                display: none;
-            }
-        }
-    }
-}
diff --git a/theme/stylesheets/pdf.less b/theme/stylesheets/pdf.less
deleted file mode 100644
index 4d1a99a..0000000
--- a/theme/stylesheets/pdf.less
+++ /dev/null
@@ -1,20 +0,0 @@
-@import "./ebook/base.less";
-
-.pdf-footer {
-    margin-top: 20px;
-    padding-top: 10px;
-    border-top: 1px solid #eee;
-    color:#aaa;
-
-    .footer-pages-count {
-        float: right;
-    }
-}
-
-.pdf-header {
-    margin-top: 20px;
-    padding-bottom: 10px;
-    border-bottom: 1px solid #eee;
-    color: #aaa;
-}
-
diff --git a/theme/stylesheets/website.less b/theme/stylesheets/website.less
deleted file mode 100755
index d808a0b..0000000
--- a/theme/stylesheets/website.less
+++ /dev/null
@@ -1,47 +0,0 @@
-@import "base/normalize.less";
-@import "base/preboot.less";
-@import "base/mixins.less";
-@import "../../node_modules/font-awesome/less/font-awesome.less";
-
-
-@import "website/variables.less";
-@import "website/languages.less";
-@import "website/header.less";
-@import "website/dropdown.less";
-@import "website/alerts.less";
-@import "website/summary.less";
-@import "website/body.less";
-@import "website/buttons.less";
-@import "website/markup.less";
-@import "website/navigation.less";
-@import "website/glossary.less";
-
-* {
-    .box-sizing(border-box);
-    -webkit-overflow-scrolling: touch;
-    -webkit-tap-highlight-color: transparent;
-    -webkit-text-size-adjust: none;
-    -webkit-touch-callout: none;
-    -webkit-font-smoothing: antialiased;
-}
-
-a {
-    text-decoration: none;
-}
-
-html, body {
-    height: 100%;
-}
-
-html {
-    font-size: 62.5%;
-}
-
-body {
-    text-rendering: optimizeLegibility;
-    font-smoothing: antialiased;
-    font-family: @font-family-base;
-    font-size: @font-size-base;
-    letter-spacing: .2px;
-    .text-adjust(100%);
-}
diff --git a/theme/stylesheets/website/alerts.less b/theme/stylesheets/website/alerts.less
deleted file mode 100644
index 22fc863..0000000
--- a/theme/stylesheets/website/alerts.less
+++ /dev/null
@@ -1,31 +0,0 @@
-.alert {
-    padding: 15px;
-    margin-bottom: 20px;
-    color: #444;
-    background: #eee;
-    border-bottom: 5px solid #ddd;
-}
-
-.alert-success {
-    background: @state-success-bg;
-    border-color: @state-success-border;
-    color: @state-success-text;
-}
-
-.alert-info {
-    background: @state-info-bg;
-    border-color: @state-info-border;
-    color: @state-info-text;
-}
-
-.alert-danger {
-    background: @state-danger-bg;
-    border-color: @state-danger-border;
-    color: @state-danger-text;
-}
-
-.alert-warning {
-    background: @state-warning-bg;
-    border-color: @state-warning-border;
-    color: @state-warning-text;
-}
diff --git a/theme/stylesheets/website/body.less b/theme/stylesheets/website/body.less
deleted file mode 100755
index 3ba93b7..0000000
--- a/theme/stylesheets/website/body.less
+++ /dev/null
@@ -1,87 +0,0 @@
-.book {
-    position: relative;
-    width: 100%;
-    height: 100%;
-
-    .book-body {
-        position: absolute;
-        top: 0px;
-        right: 0px;
-        left: 0px;
-        bottom: 0px;
-        overflow-y: auto;
-
-        color: @page-color;
-        background: @body-background;
-        .transition(left @sidebar-transition-duration ease);
-
-        .body-inner {
-            position: absolute;
-            top: 0px;
-            right: 0px;
-            left: 0px;
-            bottom: 0px;
-            overflow-y: auto;
-        }
-
-        .page-wrapper {
-            position: relative;
-            outline: none;
-
-            .page-inner {
-                max-width: 800px;
-                margin: 0px auto;
-                padding: 20px 0px 40px 0px;
-
-                section {
-                    margin: 0px 0px;
-                    padding: 5px 15px;
-
-                    background: @page-background;
-                    border-radius: 2px;
-                    line-height: @content-line-height;
-                    font-size: @default-font-size;
-                }
-
-                .btn-group {
-                    .btn {
-                        border-radius: 0px;
-                        background: #eee;
-                        border: 0px;
-                    }
-                }
-            }
-        }
-
-        @media (max-width: @mobileMaxWidth) {
-            .transition-transform(@sidebar-transition-duration ease);
-            padding-bottom: 20px;
-
-            .body-inner {
-                position: static;
-                min-height: calc(~"100% - 50px")
-            }
-        }
-    }
-
-    &.with-summary {
-        @media (min-width: @sidebar-breakpoint) {
-            .book-body {
-                left: @sidebar-width;
-            }
-        }
-        @media (max-width: @sidebar-breakpoint) {
-            overflow: hidden;
-
-            .book-body {
-                .translate(~"calc(100% - 60px)", 0px);
-            }
-        }
-    }
-
-    &.without-animation {
-        .book-body {
-            .transition(none) !important;
-        }
-    }
-}
\ No newline at end of file
diff --git a/theme/stylesheets/website/buttons.less b/theme/stylesheets/website/buttons.less
deleted file mode 100644
index dbc4769..0000000
--- a/theme/stylesheets/website/buttons.less
+++ /dev/null
@@ -1,32 +0,0 @@
-.buttons {
-    .clearfix();
-}
-
-.button {
-    border: 0;
-    background-color: transparent;
-    background: @button-background;
-    color: @button-color;
-    width: 100%;
-    text-align: center;
-    float: left;
-    line-height: @line-height-base;
-    padding: 8px 4px;
-
-    &:hover {
-        color: @button-hover-color;
-    }
-
-    &:focus, &:hover {
-        outline: none;
-    }
-
-    &.size-2 {
-        width: 50%;
-    }
-
-    &.size-3 {
-        width: 33%;
-    }
-}
-
diff --git a/theme/stylesheets/website/dropdown.less b/theme/stylesheets/website/dropdown.less
deleted file mode 100644
index 5093d5d..0000000
--- a/theme/stylesheets/website/dropdown.less
+++ /dev/null
@@ -1,105 +0,0 @@
-.dropdown {
-    position: relative;
-}
-
-.dropdown-menu {
-    position: absolute;
-    top: 100%;
-    left: 0;
-    z-index: @dropdown-zindex;
-    display: none; // none by default, but block on "open" of the menu
-    float: left;
-    min-width: 160px;
-    padding: 0;
-    margin: 2px 0 0; // override default ul
-    list-style: none;
-    font-size: @font-size-base;
-    background-color: @dropdown-background;
-    border: 1px solid @dropdown-border-color;
-    border-radius: @border-radius-base;
-    .box-shadow(0 6px 12px rgba(0,0,0,.175));
-    background-clip: padding-box;
-
-    &.open{
-        display:block;
-    }
-
-    &.dropdown-left {
-        left: auto;
-        right: 4%;
-
-        .dropdown-caret {
-            right: 14px;
-            left: auto;
-        }
-    }
-
-    .dropdown-caret{
-        position: absolute;
-        top: -8px;
-        left: 14px;
-        width: 18px;
-        height: 10px;
-        float: left;
-        overflow: hidden;
-
-        .caret-outer{
-            position: absolute;
-            border-left: 9px solid transparent;
-            border-right: 9px solid transparent;
-            border-bottom: 9px solid rgba(0,0,0,0.1);
-            height: auto;
-            left: 0;
-            top: 0;
-            width: auto;
-            display: inline-block;
-            margin-left: -1px;
-        }
-        .caret-inner{
-            position: absolute;
-            display: inline-block;
-            margin-top: -1px;
-            top: 0;
-            top: 1px;
-            border-left: 9px solid transparent;
-            border-right: 9px solid transparent;
-            border-bottom: 9px solid @dropdown-background;
-        }
-    }
-
-    .buttons {
-        .clearfix();
-        border-bottom: 1px solid @sidebar-divider-color;
-
-        &:last-child {
-            border-bottom: none;
-        }
-
-        .button {
-            border: 0;
-            background-color: transparent;
-            color: @dropdown-button-color;
-            width: 100%;
-            text-align: center;
-            float: left;
-            line-height: @line-height-base;
-            padding: 8px 4px;
-
-            &:hover {
-                color: @dropdown-button-hover-color;
-            }
-
-            &:focus, &:hover {
-                outline: none;
-            }
-
-            &.size-2 {
-                width: 50%;
-            }
-
-            &.size-3 {
-                width: 33%;
-            }
-        }
-    }
-}
diff --git a/theme/stylesheets/website/glossary.less b/theme/stylesheets/website/glossary.less
deleted file mode 100644
index e360627..0000000
--- a/theme/stylesheets/website/glossary.less
+++ /dev/null
@@ -1,22 +0,0 @@
-.book .book-body .page-wrapper .page-inner section.glossary {
-    margin-bottom: 40px;
-
-    h2 {
-        a, a:hover {
-            color: inherit;
-            text-decoration: none;
-        }
-    }
-
-    .glossary-index {
-        list-style: none;
-        margin: 0px;
-        padding: 0px;
-
-        li {
-            display: inline;
-            margin: 0px 8px;
-            white-space: nowrap;
-        }
-    }
-}
diff --git a/theme/stylesheets/website/header.less b/theme/stylesheets/website/header.less
deleted file mode 100755
index c783548..0000000
--- a/theme/stylesheets/website/header.less
+++ /dev/null
@@ -1,82 +0,0 @@
-.book {
-    .book-header {
-        font-family: @font-family-sans;
-
-        overflow: visible;
-        height: @header-height;
-        padding: 0px 8px;
-        z-index: 2;
-
-        font-size: 0.85em;
-        color: @header-color;
-        background: @header-background;
-
-        .btn {
-            display: block;
-            height: @header-height;
-            padding: 0px 15px;
-            border-bottom: none;
-            color: @header-button-color;
-            text-transform: uppercase;
-            line-height: @header-height;
-            .box-shadow(none) !important;
-            position:relative;
-            font-size: @font-size-base;
-
-            &:hover {
-                position: relative;
-                text-decoration: none;
-                color: @header-button-hover-color;
-                background: @header-button-hover-background;
-            }
-        }
-
-        h1 {
-            margin: 0px;
-            font-size: 20px;
-            font-weight: 200;
-            text-align: center;
-            line-height: @header-height;
-            opacity: 0;
-            .transition(opacity ease 0.4s);
-
-            padding-left: 200px;
-            padding-right: 200px;
-            .transition(opacity 0.2s ease);
-
-            overflow: hidden;
-            text-overflow: ellipsis;
-            white-space: nowrap;
-
-            a, a:hover {
-                color: inherit;
-                text-decoration: none;
-            }
-
-            @media (max-width: 1000px) {
-                display: none;
-            }
-
-            i {
-                display: none;
-            }
-        }
-
-        &:hover {
-            h1 {
-                opacity: 1;
-            }
-        }
-    }
-
-    &.is-loading {
-        .book-header h1 {
-            i {
-                display: inline-block;
-            }
-            a {
-                display: none;
-            }
-        }
-    }
-}
diff --git a/theme/stylesheets/website/languages.less b/theme/stylesheets/website/languages.less
deleted file mode 100755
index bde5a77..0000000
--- a/theme/stylesheets/website/languages.less
+++ /dev/null
@@ -1,51 +0,0 @@
-.book-langs-index {
-    width: 100%;
-    height: 100%;
-    padding: 40px 0px;
-    margin: 0px;
-    overflow: auto;
-
-    @media (max-width: 600px) {
-        padding: 0px;
-    } 
-
-    .inner {
-        max-width: 600px;
-        width: 100%;
-
-        margin: 0px auto;
-        padding: 30px;
-
-        background: #fff;
-        border-radius: 3px;
-
-        h3 {
-            margin: 0px;
-        }
-
-        .languages {
-            list-style: none;
-            padding: 20px 30px;
-            margin-top: 20px;
-            border-top: 1px solid #eee;
-
-            .clearfix();
-
-            li {
-                width: 50%;
-                float: left;
-                padding: 10px 5px;
-                font-size: 16px;
-
-                a {
-
-                }
-
-                @media (max-width: 600px) {
-                    width: 100%;
-                    max-width: 100%;
-                } 
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/theme/stylesheets/website/markup.less b/theme/stylesheets/website/markup.less
deleted file mode 100755
index 90f2225..0000000
--- a/theme/stylesheets/website/markup.less
+++ /dev/null
@@ -1,12 +0,0 @@
-.book .book-body .page-wrapper .page-inner section {
-    display: none;
-}
-
-.book .book-body .page-wrapper .page-inner section.normal {
-    .gitbook-markdown(@md-color: @content-color, @md-line-height: @content-line-height);
-
-    .glossary-term {
-        cursor: help;
-        text-decoration: underline;
-    }
-}
diff --git a/theme/stylesheets/website/navigation.less b/theme/stylesheets/website/navigation.less
deleted file mode 100755
index 6c647c8..0000000
--- a/theme/stylesheets/website/navigation.less
+++ /dev/null
@@ -1,50 +0,0 @@
-.book .book-body  {
-    .navigation {
-        position: absolute;
-        top: @header-height;
-        bottom: 0px;
-        margin: 0;
-        max-width: 150px;
-        min-width: 90px;
-
-        display: flex;
-        justify-content: center;
-        align-content: center;
-        flex-direction: column;
-
-        font-size: 40px;
-        color: @navigation-color;
-
-        text-align: center;
-
-        .transition(all 350ms ease);
-
-        &:hover {
-            text-decoration: none;
-            color: @navigation-hover-color;
-        }
-
-        &.navigation-next {
-            right: 0px;
-        }
-        &.navigation-prev {
-            left: 0px;
-        }
-    }
-
-    @media (max-width: @mobileMaxWidth) {
-        .navigation {
-            position: static;
-            top: auto;
-            max-width: 50%;
-            width: 50%;
-            display: inline-block;
-            float: left;
-
-            &.navigation-unique {
-                max-width: 100%;
-                width: 100%;
-            }
-        }
-    }
-}
diff --git a/theme/stylesheets/website/summary.less b/theme/stylesheets/website/summary.less
deleted file mode 100755
index 37f2950..0000000
--- a/theme/stylesheets/website/summary.less
+++ /dev/null
@@ -1,110 +0,0 @@
-.book {
-    .book-summary {
-        font-family: @font-family-sans;
-
-        position: absolute;
-        top: 0px;
-        left: -@sidebar-width;
-        bottom: 0px;
-        z-index: 1;
-
-        width: @sidebar-width;
-        color: @sidebar-color;
-        background: @sidebar-background;
-        border-right: @sidebar-border-right;
-
-        .transition(left @sidebar-transition-duration ease);
-
-        ul.summary {
-            position: absolute;
-            top: 0px;
-            left: 0px;
-            right: 0px;
-            bottom: 0px;
-
-            overflow-y: auto;
-
-            list-style: none;
-            margin: 0px;
-            padding: 0px;
-
-            .transition(top 0.5s ease);
-
-            li {
-                list-style: none;
-
-                &.divider {
-                    height: 1px;
-                    margin: 7px 0;
-                    overflow: hidden;
-                    background: @sidebar-divider-color;
-                }
-
-                i.fa-check {
-                    display: none;
-                    position: absolute;
-                    right: 9px;
-                    top: 16px;
-                    font-size: 9px;
-                    color: @sidebar-icon-color;
-                }
-
-                &.done {
-                    > a {
-                        color: @sidebar-link-completed;
-                        font-weight: @sidebar-link-completed-weight;
-
-                        i {
-                            display: inline;
-                        }
-                    }
-                }
-
-                a, span {
-                    display: block;
-                    padding: 10px 15px;
-                    border-bottom: none;
-                    color: @sidebar-link-color;
-                    background: @sidebar-link-background;
-                    text-overflow: ellipsis;
-                    overflow: hidden;
-                    white-space: nowrap;
-                    position: relative;
-                }
-
-                span {
-                    cursor: not-allowed;
-                    .opacity(0.3);
-                }
-
-                &.active > a, a:hover {
-                    color: @sidebar-link-hover-color;
-                    background: @sidebar-link-hover-background;
-                    text-decoration: none;
-                }
-
-                ul {
-                    padding-left: @sidebar-nested-padding;
-                }
-            }
-        }
-
-        @media (max-width: @sidebar-breakpoint) {
-            width: calc(~"100% - 60px");
-            bottom: 0px;
-            left: -100%;
-        }
-    }
-
-    &.with-summary {
-        .book-summary {
-            left: 0px;
-        }
-    }
-
-    &.without-animation {
-        .book-summary {
-            .transition(none) !important;
-        }
-    }
-}
diff --git a/theme/stylesheets/website/variables.less b/theme/stylesheets/website/variables.less
deleted file mode 100644
index d543015..0000000
--- a/theme/stylesheets/website/variables.less
+++ /dev/null
@@ -1,107 +0,0 @@
-@staticPath: ".";
-
-// Font sizes
-@font-size-base:          14px;
-@font-size-large:         ceil(@font-size-base * 1.25); // ~18px
-@font-size-small:         ceil(@font-size-base * 0.85); // ~12px
-@line-height-base:        1.428571429; // 20/14
-@line-height-computed:    floor(@font-size-base * @line-height-base);
-
-// Sizes
-@mobileMaxWidth:                      1240px;
-
-// Header
-@header-height:                       50px;
-@header-color:                        hsl(194, 5%, 52%);
-@header-background:                   transparent;
-@header-border:                       rgba(0, 0, 0, 0.07);
-@header-button-color:                 #ccc;
-@header-button-hover-color:           #444;
-@header-button-hover-background:      none;
-
-// Navigation
-@navigation-color:                    @header-button-color;
-@navigation-hover-color:              @header-button-hover-color;
-
-// Body
-@body-background:                     white;
-
-// Sidebar
-@sidebar-transition-duration:         250ms;
-@sidebar-width:                       300px;
-@sidebar-breakpoint:                  600px;
-@sidebar-color:                       hsl(207, 15%, 25%);
-@sidebar-background:                  #fafafa;
-@sidebar-border-right:                1px solid @header-border;
-
-@sidebar-nested-padding:              20px;
-@sidebar-divider-color:               @header-border;
-
-@sidebar-link-color:                  @sidebar-color;
-@sidebar-link-background:             transparent;
-@sidebar-link-hover-color:            hsl(207, 100%, 50%);
-@sidebar-link-hover-background:       transparent;
-
-@sidebar-icon-color:                  hsl(120, 60%, 50%);
-@sidebar-link-completed:              @sidebar-link-color;
-@sidebar-link-completed-weight:       normal;
-
-// Page
-@page-color:                          black;
-@page-background:                     @body-background;
-
-// Content
-@content-line-height:                 1.7;
-@content-color:                       #333333;
-
-// Dropdown
-@dropdown-zindex:                     100;
-@dropdown-divider-color:              @sidebar-divider-color;
-@dropdown-background:                 @sidebar-background;
-@dropdown-button-color:               darken(@header-button-color, 15%);
-@dropdown-border-color:               @sidebar-divider-color;
-@dropdown-button-hover-color:         @header-button-hover-color;
-
-// Buttons
-@button-background:                   #eee;
-@button-color:                        #666;
-@button-hover-color:                  #444;
-
-// States and alerts
-@state-success-text:                  #3c763d;
-@state-success-bg:                    #dff0d8;
-@state-success-border:                darken(spin(@state-success-bg, -10), 5%);
-
-@state-info-text:                     #31708f;
-@state-info-bg:                       #d9edf7;
-@state-info-border:                   darken(spin(@state-info-bg, -10), 7%);
-
-@state-warning-text:                  #8a6d3b;
-@state-warning-bg:                    #fcf8e3;
-@state-warning-border:                darken(spin(@state-warning-bg, -10), 5%);
-
-@state-danger-text:                   #a94442;
-@state-danger-bg:                     #f2dede;
-@state-danger-border:                 darken(spin(@state-danger-bg, -10), 5%);
-
-// Border Radius
-@border-radius-base:                  1px;
-@border-radius-large:                 3px;
-@border-radius-small:                 1px;
-
-// Fonts
-@font-family-serif:                   Georgia, serif;
-@font-family-sans:                    "Helvetica Neue", Helvetica, Arial, sans-serif;
-@font-family-base:                    @font-family-sans;
-@headings-font-family:                inherit;
-
-@FontPath:                            '@{staticPath}/fonts';
-@fa-font-path:                        "@{FontPath}/fontawesome";
-
-@s-font-size:                         1.2rem;
-@m-font-size:                         1.4rem;
-@l-font-size:                         1.6rem;
-@xl-font-size:                        2.2rem;
-@xxl-font-size:                       4.0rem;
-@default-font-size:                   @l-font-size;
-
diff --git a/theme/templates/ebook/footer.html b/theme/templates/ebook/footer.html
deleted file mode 100644
index 8592213..0000000
--- a/theme/templates/ebook/footer.html
+++ /dev/null
@@ -1,8 +0,0 @@
-<html>
-    <body>
-        <div class="pdf-footer">
-            <span>_SECTION_</span>
-            <span class="footer-pages-count">_PAGENUM_</span>
-        </div>
-    </body>
-</html>
\ No newline at end of file
diff --git a/theme/templates/ebook/glossary.html b/theme/templates/ebook/glossary.html
deleted file mode 100644
index ddc8809..0000000
--- a/theme/templates/ebook/glossary.html
+++ /dev/null
@@ -1,22 +0,0 @@
-{% extends "./page.html" %}
-
-{% block title %}{{ __("GLOSSARY") }} | {{ title }}{% endblock %}
-
-{% block page %}
-    <h1 class="book-chapter book-chapter-1">{{ __("GLOSSARY") }}</h1>
-    <div class="section glossary">
-        <h1>{{ __("GLOSSARY") }}</h1>
-
-        {% for item in glossary %}
-        <div class="glossary-entry" id="{{ item.id }}">
-            <h2><a href="#{{ item.id }}">{{ item.name }}</a></h2>
-            <p>{{ item.description|safe }}</p>
-            <ul class="glossary-index">
-            {% for file in item.files %}
-                <li><a href="{{ basePath }}/{{ file.path|contentLink }}"><span class="level">{{ file.level }}.</span> {{ file.title }}</a></li>
-            {% endfor %}
-            </ul>
-        </div>
-        {% endfor %}
-    </div>
-{% endblock %}
diff --git a/theme/templates/ebook/header.html b/theme/templates/ebook/header.html
deleted file mode 100644
index 6b5d295..0000000
--- a/theme/templates/ebook/header.html
+++ /dev/null
@@ -1,7 +0,0 @@
-<html>
-    <body>
-        <div class="pdf-header">
-            <span>_TITLE_</span>
-        </div>
-    </body>
-</html>
\ No newline at end of file
diff --git a/theme/templates/ebook/layout.html b/theme/templates/ebook/layout.html
deleted file mode 100644
index e45430d..0000000
--- a/theme/templates/ebook/layout.html
+++ /dev/null
@@ -1,24 +0,0 @@
-<!DOCTYPE HTML>
-<html lang="{{ language }}" {% block htmlTag %}{% endblock %} {% if options.direction == "rtl" %}dir="rtl"{% endif %}>
-    {{ htmlSnippet("html:start")|default("", true)|safe }}
-    <head>
-        {{ htmlSnippet("head:start")|default("", true)|safe }}
-        <meta charset="UTF-8">
-        <title>{% block title %}{% endblock %}</title>
-        <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
-        <meta name="description" content="{% block description %}{% endblock %}">
-        <meta name="generator" content="GitBook {{ gitbook.version }}">
-        {% if options.author %}<meta name="author" content="{{ options.author }}">{% endif %}
-        {% if options.isbn %}<meta name="identifier" content="{{ options.isbn }}" scheme="ISBN">{% endif %}
-        {% block head %}{% endblock %}
-        {% block style %}{% endblock %}
-        {{ htmlSnippet("head:end")|default("", true)|safe }}
-    </head>
-    <body class="dir-{{ options.direction }}">
-        {{ htmlSnippet("body:start")|default("", true)|safe }}
-        {% block content %}{% endblock %}
-        {% block javascript %}{% endblock %}
-        {{ htmlSnippet("body:end")|default("", true)|safe }}
-    </body>
-    {{ htmlSnippet("html:end")|default("", true)|safe }}
-</html>
diff --git a/theme/templates/ebook/page.html b/theme/templates/ebook/page.html
deleted file mode 100644
index 47420b8..0000000
--- a/theme/templates/ebook/page.html
+++ /dev/null
@@ -1,40 +0,0 @@
-{% extends "./layout.html" %}
-
-{% block title %}{{ progress.current.title }} | {{ title }}{% endblock %}
-
-{% block style %}
-    {# Default styles if not disabled #}
-    {% if not styles.print %}
-        <link rel="stylesheet" href="{{ staticBase }}/{{ options.generator }}.css">
-    {% endif %}
-
-    {# Style from plugins  #}
-    {% for resource in plugins.resources.css %}
-        {% if resource.url %}
-        <link rel="stylesheet" href="{{ resource.url }}">
-        {% else %}
-        <link rel="stylesheet" href="{{ staticBase }}/plugins/{{ resource.path }}">
-        {% endif %}
-    {% endfor %}
-
-    {# Custom styles from the book #}
-    {% for type, style in styles %}
-        <link rel="stylesheet" href="{{ basePath }}/{{ style }}">
-    {% endfor %}
-{% endblock %}
-
-{% block content %}
-<div class="page">
-    {% block page %}
-        <h1 class="book-chapter book-chapter-{{ progress.current.level|lvl }}">{{ progress.current.title }}</h1>
-        {% for section in content %}
-            <div class="section {{ section.type }}" id="section-{{ section.id }}">
-            {% if section.type == "normal" %}
-                {% autoescape false %}{{ section.content }}{% endautoescape %}
-            {% endif %}
-            </div>
-        {% endfor %}
-    {% endblock %}
-</div>
-{% endblock %}
-
diff --git a/theme/templates/ebook/summary.html b/theme/templates/ebook/summary.html
deleted file mode 100644
index 237ae6e..0000000
--- a/theme/templates/ebook/summary.html
+++ /dev/null
@@ -1,47 +0,0 @@
-{% extends "./page.html" %}
-
-{% block title %}{{ __("SUMMARY") }} | {{ title }}{% endblock %}
-
-{% macro articles(_articles) %}
-    {% for item in _articles %}
-        <li>
-            <span class="inner">
-                {% if item.path and item.exists %}
-                    {% if not item.external %}
-                        <a href="{{ basePath }}/{{ item.path|contentLink }}">{{ item.title }}</a>
-                    {% else %}
-                        <a target="_blank" href="{{ item.path }}">{{ item.title }}</a>
-                    {% endif %}
-                {% else %}
-                    <span>{{ item.title }}</span>
-                {% endif %}
-                {% if options.generator != "mobi" %}
-                <span class="page">{{ item.level }}</span>
-                {% endif %}
-            </span>
-            {% if item.articles.length > 0 %}
-            <ol>
-                {{ articles(item.articles) }}
-            </ol>
-            {% endif %}
-        </li>
-    {% endfor %}
-{% endmacro %}
-
-{% block page %}
-<div class="section toc">
-    <h1>{{ __("SUMMARY") }}</h1>
-    <ol>
-        {{ articles(summary.chapters) }}
-
-        {% if glossary.length > 0 %}
-        <li>
-            <span class="inner">
-                <a href="{{ basePath }}/GLOSSARY.html">{{ __("GLOSSARY") }}</a>
-            </span>
-        </li>
-        {% endif %}
-    </ol>
-</div>
-{% endblock %}
-
diff --git a/theme/templates/website/glossary.html b/theme/templates/website/glossary.html
deleted file mode 100644
index dd3f719..0000000
--- a/theme/templates/website/glossary.html
+++ /dev/null
@@ -1,17 +0,0 @@
-{% extends "page.html" %}
-
-{% block title %}{{ __("GLOSSARY") }} | {{ title }}{% endblock %}
-
-{% block page_inner %}
-    {% for item in glossary %}
-    <section class="normal glossary" id="{{ item.id }}">
-        <h2><a href="#{{ item.id }}">{{ item.name }}</a></h2>
-        <p>{{ item.description|safe }}</p>
-        <ul class="glossary-index">
-        {% for file in item.files %}
-            <li><a href="{{ basePath }}/{{ file.path|contentLink }}"><span class="level">{{ file.level }}.</span> {{ file.title }}</a></li>
-        {% endfor %}
-        </ul>
-    </section>
-    {% endfor %}
-{% endblock %}
diff --git a/theme/templates/website/includes/header.html b/theme/templates/website/includes/header.html
deleted file mode 100644
index 84ae83c..0000000
--- a/theme/templates/website/includes/header.html
+++ /dev/null
@@ -1,12 +0,0 @@
-<div class="book-header" role="navigation">
-    <!-- Actions Left -->
-    {% if glossary.length > 0 %}
-    <a href="{{ basePath }}/GLOSSARY.html" class="btn pull-left" aria-label="{{ __("GLOSSARY_OPEN") }}"><i class="fa fa-sort-alpha-asc"></i></a>
-    {% endif %}
-
-    <!-- Title -->
-    <h1>
-        <i class="fa fa-circle-o-notch fa-spin"></i>
-        <a href="{{ basePath }}/" >{{ title }}</a>
-    </h1>
-</div>
diff --git a/theme/templates/website/includes/summary.html b/theme/templates/website/includes/summary.html
deleted file mode 100644
index ea0fe80..0000000
--- a/theme/templates/website/includes/summary.html
+++ /dev/null
@@ -1,57 +0,0 @@
-{% macro articles(_articles) %}
-    {% for item in _articles %}
-        <li class="chapter {% if item.path == _input %}active{% endif %}" data-level="{{ item.level }}" {% if item.path and not item.external %}data-path="{{ item.path|contentLink }}"{% endif %}>
-            {% if item.path and item.exists %}
-                {% if not item.external %}
-                    <a href="{{ basePath }}/{{ item.path|contentLink }}">
-                {% else %}
-                    <a target="_blank" href="{{ item.path }}">
-                {% endif %}
-                        <i class="fa fa-check"></i>
-                        {% if item.level != "0" %}
-                            <b>{{ item.level }}.</b>
-                        {% endif %}
-                        {{ item.title }}
-                    </a>
-            {% else %}
-            <span><b>{{ item.level }}.</b> {{ item.title }}</span>
-            {% endif %}
-            {% if item.articles.length > 0 %}
-            <ul class="articles">
-                {{ articles(item.articles) }}
-            </ul>
-            {% endif %}
-        </li>
-    {% endfor %}
-{% endmacro %}
-
-<div class="book-summary">
-    <nav role="navigation">
-        <ul class="summary">
-            {% set _divider = false %}
-            {% if options.links.sidebar %}
-            {% for linkTitle, link in options.links.sidebar %}
-                {% set _divider = true %}
-                <li>
-                    <a href="{{ link }}" target="blank" class="custom-link">{{ linkTitle }}</a>
-                </li>
-            {% endfor %}
-            {% endif %}
-
-            {% if _divider %}
-            <li class="divider"></li>
-            {% endif %}
-
-            {{ articles(summary.chapters) }}
-
-            {% if options.links.gitbook != false %}
-            <li class="divider"></li>
-            <li>
-                <a href="https://www.gitbook.com" target="blank" class="gitbook-link">
-                    {{ __("GITBOOK_LINK") }}
-                </a>
-            </li>
-            {% endif %}
-        </ul>
-    </nav>
-</div>
diff --git a/theme/templates/website/langs.html b/theme/templates/website/langs.html
deleted file mode 100755
index 66770ec..0000000
--- a/theme/templates/website/langs.html
+++ /dev/null
@@ -1,25 +0,0 @@
-{% extends "./layout.html" %}
-
-{% block title %}{{ __("LANGS_CHOOSE") }} | {{ title }}{% endblock %}
-
-{% block style %}
-<link rel="stylesheet" href="{{ staticBase }}/style.css">
-{% endblock %}
-
-{% block content %}
-<div class="book-langs-index" role="navigation">
-    <div class="inner">
-        <h3>{{ __("LANGS_CHOOSE") }}</h3>
-
-        <ul class="languages">
-        {%  for lang in langs %}
-            <li>
-                <a href="{{ basePath}}/{{ lang.lang }}/index.html">{{ lang.title }}</a>
-            </li>
-        {% endfor %}
-        </ul>
-    </div>
-</div>
-{% endblock %}
-
-{% block javascript %}{% endblock %}
diff --git a/theme/templates/website/layout.html b/theme/templates/website/layout.html
deleted file mode 100644
index f3817d9..0000000
--- a/theme/templates/website/layout.html
+++ /dev/null
@@ -1,31 +0,0 @@
-<!DOCTYPE HTML>
-<html lang="{{ language }}" {% if options.direction == "rtl" %}dir="rtl"{% endif %}>
-    {{ htmlSnippet("html:start")|default("", true)|safe }}
-    <head>
-        {{ htmlSnippet("head:start")|default("", true)|safe }}
-        <meta charset="UTF-8">
-        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
-        <title>{% block title %}{% endblock %}</title>
-        <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
-        <meta name="description" content="{% block description %}{% endblock %}">
-        <meta name="generator" content="GitBook {{ gitbook.version }}">
-        {% if options.author %}<meta name="author" content="{{ options.author }}">{% endif %}
-        {% if options.isbn %}<meta name="identifier" content="{{ options.isbn }}" scheme="ISBN">{% endif %}
-        <meta name="HandheldFriendly" content="true"/>
-        <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
-        <meta name="apple-mobile-web-app-capable" content="yes">
-        <meta name="apple-mobile-web-app-status-bar-style" content="black">
-        <link rel="apple-touch-icon-precomposed" sizes="152x152" href="{{ staticBase }}/images/apple-touch-icon-precomposed-152.png">
-        <link rel="shortcut icon" href="{{ staticBase }}/images/favicon.ico" type="image/x-icon">
-        {% block style %}{% endblock %}
-        {% block head %}{% endblock %}
-        {{ htmlSnippet("head:end")|default("", true)|safe }}
-    </head>
-    <body>
-        {{ htmlSnippet("body:start")|default("", true)|safe }}
-        {% block content %}{% endblock %}
-        {% block javascript %}{% endblock %}
-        {{ htmlSnippet("body:end")|default("", true)|safe }}
-    </body>
-    {{ htmlSnippet("html:end")|default("", true)|safe }}
-</html>
diff --git a/theme/templates/website/page.html b/theme/templates/website/page.html
deleted file mode 100644
index 6c29164..0000000
--- a/theme/templates/website/page.html
+++ /dev/null
@@ -1,82 +0,0 @@
-{% extends "./layout.html" %}
-
-{% block head %}
-    {{ super() }}
-    {% if progress.current.next and progress.current.next.path %}
-    <link rel="next" href="{{ basePath }}/{{ progress.current.next.path|contentLink }}" />
-    {% endif %}
-    {% if progress.current.prev and progress.current.prev.path %}
-    <link rel="prev" href="{{ basePath }}/{{ progress.current.prev.path|contentLink }}" />
-    {% endif %}
-{% endblock %}
-
-{% block title %}{{ progress.current.title }} | {{ title }}{% endblock %}
-{% block description %}{% if progress.current.level == "0" %}{{ description }}{% endif %}{% endblock %}
-
-{% block content %}
-    <div class="book"
-        data-level="{{ progress.current.level }}"
-        data-chapter-title="{{ progress.current.title }}"
-        data-filepath="{{ progress.current.path }}"
-        data-basepath="{{ basePath }}"
-        data-revision="{{ revision }}"
-        data-innerlanguage="{{ innerlanguage }}">
-    {% include "includes/summary.html" %}
-    <div class="book-body">
-        <div class="body-inner">
-            {% include "includes/header.html" %}
-            <div class="page-wrapper" tabindex="-1" role="main">
-                <div class="page-inner">
-                {% block page_inner %}
-                {% for section in content %}
-                    <section class="{{ section.type }}" id="section-{{ section.id }}">
-                    {% if section.type == "normal" %}
-                        {% autoescape false %}{{ section.content }}{% endautoescape %}
-                    {% endif %}
-                    </section>
-                {% endfor %}
-                {% endblock %}
-                </div>
-            </div>
-        </div>
-
-        {% if progress.current.prev and progress.current.prev.path %}
-        <a href="{{ basePath }}/{{ progress.current.prev.path|contentLink }}" class="navigation navigation-prev {% if not (progress.current.next and progress.current.next.path) %}navigation-unique{% endif %}" aria-label="Previous page: {{ progress.current.prev.title }}"><i class="fa fa-angle-left"></i></a>
-        {% endif %}
-        {% if progress.current.next and progress.current.next.path %}
-        <a href="{{ basePath }}/{{ progress.current.next.path|contentLink }}" class="navigation navigation-next {% if not (progress.current.prev or progress.current.prev.path) %}navigation-unique{% endif %}" aria-label="Next page: {{ progress.current.next.title }}"><i class="fa fa-angle-right"></i></a>
-        {% endif %}
-    </div>
-</div>
-{% endblock %}
-
-{% block javascript %}
-<script src="{{ staticBase }}/app.js"></script>
-{% for resource in plugins.resources.js %}
-    {% if resource.url %}
-    <script src="{{ resource.url }}"></script>
-    {% else %}
-    <script src="{{ staticBase }}/plugins/{{ resource.path }}"></script>
-    {% endif %}
-{% endfor %}
-<script>
-require(["gitbook"], function(gitbook) {
-    var config = {% autoescape false %}{{ pluginsConfig }}{% endautoescape %};
-    gitbook.start(config);
-});
-</script>
-{% endblock %}
-
-{% block style %}
-    <link rel="stylesheet" href="{{ staticBase }}/style.css">
-    {% for resource in plugins.resources.css %}
-        {% if resource.url %}
-        <link rel="stylesheet" href="{{ resource.url }}">
-        {% else %}
-        <link rel="stylesheet" href="{{ staticBase }}/plugins/{{ resource.path }}">
-        {% endif %}
-    {% endfor %}
-    {% for type, style in styles %}
-        <link rel="stylesheet" href="{{ basePath }}/{{ style }}">
-    {% endfor %}
-{% endblock %}