Merge branch '2.4'

* 2.4:
  udpated LICENSE year
  update year on licenses
  rundown and typo fix
  [Process] Fix #9861 : Revert TTY mode
  [Form] Update minimal requirement in composer.json
  Fix Empty translations with Qt files
  [Console] Fixed command name guessing if an alternative is an alias.
  Update UPGRADE-2.3.md to account for #9388
  [WebProfilerBundle] Fixed profiler toolbar icons for XHTML.
  [BrowserKit] Throw exception on invalid cookie expiration timestamp
  [Propel1Bridge][ModelChoiceList] add exception message for invalid classes
[TwigBridge] Cleaned documentation of twig:lint command
Merge branch '2.4'

* 2.4:
  added missing @deprecated tag
  Fixed recursion level incrementing in FlattenException::flattenArgs().
  [HttpKernel] fixed wrong reference in TraceableEventDispatcher

Conflicts:
	src/Symfony/Component/HttpKernel/Debug/TraceableEventDispatcher.php