* 2.8:
Added the right revision date for status code registry
[Config] Fix enum default value in Yaml dumper
fixed typo.
[Translation][File dumper] allow get file content without writing in file.
Finnish translation fix
[CssSelector] Optimize regexs matching simple selectors
Fix the phpdoc in the CssSelector TranslatorInterface
[Console] Add clock mock to fix transient test on HHVM
[DomCrawler] Optimize the regex used to find namespace prefixes
[VarDumper] Add EnumStub for dumping virtual collections with casters
[Finder] Deprecate adapters and related classes
[EventDispatcher] skip one lazy loading call
[EventDispatcher] fix memory leak in a getListeners
[WebProfilerBundle] added btn-link.
Remove duplication of the handling of regex filters in the Finder
Default to stderr for console helpers (only merge if #15794 gets merged)
Conflicts:
src/Symfony/Component/Console/Tests/Helper/LegacyProgressHelperTest.php
src/Symfony/Component/EventDispatcher/EventDispatcher.php
src/Symfony/Component/VarDumper/Tests/CliDumperTest.php
src/Symfony/Component/VarDumper/Tests/HtmlDumperTest.php
