Merge branch '2.3' into 2.5

* 2.3:
  [2.3] Remove useless tests skips
  [2.3] Cleanup deprecations

Conflicts:
	src/Symfony/Bridge/Doctrine/Tests/Form/Type/EntityTypePerformanceTest.php
	src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php
	src/Symfony/Bundle/FrameworkBundle/composer.json
	src/Symfony/Bundle/TwigBundle/composer.json
	src/Symfony/Component/Debug/Tests/MockExceptionHandler.php
	src/Symfony/Component/Debug/composer.json
	src/Symfony/Component/Form/Tests/ResolvedFormTypeTest.php
	src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
	src/Symfony/Component/HttpKernel/Tests/DataCollector/LoggerDataCollectorTest.php
	src/Symfony/Component/HttpKernel/Tests/DataCollector/RequestDataCollectorTest.php
	src/Symfony/Component/HttpKernel/Tests/Debug/TraceableEventDispatcherTest.php
	src/Symfony/Component/HttpKernel/Tests/EventListener/LocaleListenerTest.php
	src/Symfony/Component/HttpKernel/Tests/EventListener/RouterListenerTest.php
	src/Symfony/Component/HttpKernel/Tests/Fixtures/KernelForTest.php
	src/Symfony/Component/HttpKernel/composer.json
	src/Symfony/Component/Routing/Tests/Annotation/RouteTest.php
	src/Symfony/Component/Security/Tests/Core/Validator/Constraints/UserPasswordValidatorTest.php
	src/Symfony/Component/Security/composer.json

Author: nicolas-grekas

Tests/Functional/app/AppKernel.php

@@ -74,10 +74,6 @@ public function registerBundles()
         return include $filename;
     }
 
-    public function init()
-    {
-    }
-
     public function getRootDir()
     {
         return __DIR__;