sub-requests are now created with the same class as their parent
Merge branch '2.1' into 2.2

* 2.1:
  sub-requests are now created with the same class as their parent
  [FrameworkBundle] removed BC break
  [FrameworkBundle] changed temp kernel name in cache:clear
  [DoctrineBridge] Avoids blob values to be logged by doctrine
  [Security] use current request attributes to generate redirect url?
  [Validator] fix showing wrong max file size for upload errors
  [TwigBridge] removed double var initialization (refs #7344)
  [2.1][TwigBridge] Fixes Issue #7342 in TwigBridge
  [FrameworkBundle] fixed cahe:clear command's warmup
  [TwigBridge] now enter/leave scope on Twig_Node_Module
  [TwigBridge] fixed fixed scope & trans_default_domain node visitor
  [TwigBridge] fixed non probant tests & added new one
  [BrowserKit] added ability to ignored malformed set-cookie header
  [Translation] removed wriong 'use'
  [Translation] added xliff loader/dumper with resname support
  [TwigBridge] fixes

Conflicts:
	src/Symfony/Bundle/FrameworkBundle/HttpKernel.php
	src/Symfony/Component/Security/Http/HttpUtils.php
	src/Symfony/Component/Translation/Loader/XliffFileLoader.php
	src/Symfony/Component/Translation/Tests/Loader/XliffFileLoaderTest.php