[DomCrawler] Added missing docblocks and removed unneeded return annotation.
Merge branch '2.2' into 2.3

* 2.2:
  fixes RequestDataCollector bug, visible when used on Drupal8
  [Console] fixed exception rendering when nested styles
  [Console] added some more information about OutputFormatter::replaceStyle()
  [Console] fixed the formatter for single-char tags
  [Console] Escape exception message during the rendering of an exception
  [BrowserKit] Fixed the handling of parameters when redirecting
  Typo fix
  HttpFoundation RequestTest - Fixed indentation and removed comments
  HttpFoundation Request test for #8619
  LICENSE files moved to meta folders
  added missing method in the UPGRADE file for 2.2 (closes #8941)
  [Translation] Removed an unneeded return annotation.
  [DomCrawler] Added missing docblocks and removed unneeded return annotation.

Conflicts:
	src/Symfony/Component/BrowserKit/Client.php
	src/Symfony/Component/DomCrawler/Crawler.php