[FrameworkBundle] set a default value for gc_probability
Added a translation:debug command
[FrameworkBundle] Add HHVM support for built-in web server
[Translation] Added template for relative file paths
Added a ConcreteDumper
Changed placeholders
[FrameworkBundle] refactored the built-in web server
[FrameworkBundle] fixed edge cases for translation:debug and tweaked the output
Add tests for RequestStack class
add expression request matcher tests
fixed CS
fixed previous merge
[HttpKernel] fixed unit tests when using phpunit.phar
[HttpKernel] fixed CS
added the BC docs to the contributing file
[HttpFoundation] removed test file not related to 2.3
Revert "[HttpFoundation] removed test file not related to 2.3"

This reverts commit 60ed3880d70b3051ba6b6de30c2b7737ad3ea46e.
[Component][Serializer] Add fluent interface to GetSetMethodNormalizer
[Form] Implemented attributes for choices