Merge branch '2.0' into 2.1

* 2.0:
  bumped Symfony version to 2.0.19-DEV
  updated VERSION for 2.0.18
  update CONTRIBUTORS for 2.0.18
  updated CHANGELOG for 2.0.18
  updated vendors for 2.0.18
  Add to DateFormats 'D M d H:i:s Y T' (closes #5830)

Conflicts:
	CONTRIBUTORS.md
	src/Symfony/Component/HttpKernel/Kernel.php
	tests/Symfony/Tests/Bridge/Monolog/Processor/WebProcessorTest.php
	vendors.php

Author: fabpot

Cookie.php

@@ -31,6 +31,7 @@ class Cookie
         'D, d-M-y H:i:s T',
         'D, d-M-Y H:i:s T',
         'D M j G:i:s Y',
+        'D M d H:i:s Y T',
     );
 
     protected $name;