Merge branch '2.7' into 2.8

* 2.7:
  [HttpFoundation] Improve phpdoc
  [Logging] Add support for firefox in ChromePhpHandler
  Windows 10 version check in just one line
  Detect CLI color support for Windows 10 build 10586
  [Security] Fixed SwitchUserListener when exiting an impersonication with AnonymousToken
  [EventDispatcher] Try first if the event is Stopped
  [FrameworkBundle] fixes grammar in container:debug command manual.
  [Form] fix "prototype" not required when parent form is not required

Author: fabpot

Command/ContainerDebugCommand.php

@@ -80,7 +80,7 @@ protected function configure()
 
   <info>php %command.full_name% --parameters</info>
 
-Display a specific parameter by specifying his name with the <info>--parameter</info> option:
+Display a specific parameter by specifying its name with the <info>--parameter</info> option:
 
   <info>php %command.full_name% --parameter=kernel.debug</info>