Merge branch '2.7'

* 2.7: (55 commits)
  CS: fix some license headers
  CS: Ensure there is no code on the same line as the PHP open tag and it is followed by a blankline
  Improve triggering of the deprecation error
  [SecurityBundle] Fix typos in LogoutUrlHelper
  [VarDumper] add caster for MongoCursor objects
  make it possible to dump inlined services to XML
  [VarDumper] Fixed notice when Exchange is mocked
  [Translation] keep old array structure of resourcesFiles to avoid BC.
  removed deprecated notices that make the tests fail
  use visited lookup with reference to gain performance
  [VarDumper] with-er interface for Cloner\Data
  Replace GET parameters when changed
  tweaked phpdocs
  [Process] Fix outdated Process->start() docblock
  prevent inlining service configurators
  Improve entropy of generated salt
  Complete the removal of API versions in the validator component
  [Validator] deprecated API version
  Removed 2.5 bc layer
  [SecurityBundle] UserPasswordEncoderCommand: fix help arguments order.
  ...

Conflicts:
	CHANGELOG-2.3.md
	CHANGELOG-2.6.md
	src/Symfony/Bridge/Doctrine/Form/Type/DoctrineType.php
	src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Configuration.php
	src/Symfony/Bundle/FrameworkBundle/Tests/Templating/Helper/FormHelperDivLayoutTest.php
	src/Symfony/Bundle/FrameworkBundle/Tests/Templating/Helper/FormHelperTableLayoutTest.php
	src/Symfony/Bundle/FrameworkBundle/composer.json
	src/Symfony/Bundle/SecurityBundle/composer.json
	src/Symfony/Component/Console/Helper/DialogHelper.php
	src/Symfony/Component/Console/Tests/Helper/LegacyTableHelperTest.php
	src/Symfony/Component/Form/ResolvedFormType.php
	src/Symfony/Component/Routing/Matcher/Dumper/ApacheMatcherDumper.php

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