updated CHANGELOG for 2.1.11
update CONTRIBUTORS for 2.1.11
updated VERSION for 2.1.11
Merge branch '2.1' into 2.2

* 2.1:
  updated VERSION for 2.1.11
  update CONTRIBUTORS for 2.1.11
  updated CHANGELOG for 2.1.11

Conflicts:
	src/Symfony/Component/HttpKernel/Kernel.php
removed CHANGELOG for 2.1
updated CHANGELOG for 2.2.2
updated VERSION for 2.2.2
bumped Symfony version to 2.2.3-DEV
Merge branch '2.2' into 2.3

* 2.2:
  bumped Symfony version to 2.2.3-DEV
  updated VERSION for 2.2.2
  updated CHANGELOG for 2.2.2
  removed CHANGELOG for 2.1
  updated VERSION for 2.1.11
  update CONTRIBUTORS for 2.1.11
  updated CHANGELOG for 2.1.11

Conflicts:
	src/Symfony/Component/HttpKernel/Kernel.php
[Security] Removed an unnecessary call to sprintf() and added a test case.
[Security] Added a test to the BasicAuthenticationListener.
[Security] Added tests for the ContextListener.
[Security] Added tests for the SwitchUserListener.
[Security] Added few new test cases for the HttpUtils and improved readability of existing tests.
[Config] Added tests for the ConfigCache.
[Config] Fixed @covers annotation which ignored some of the methods from the code coverage.
[Config] Added tests for the FileResource and DirectoryResource.
updated CHANGELOG for 2.3.0
updated VERSION for 2.3.0
bumped Symfony version to -DEV