Merge branch '2.2'

* 2.2:
  bumped Symfony version to 2.1.11-DEV
  updated VERSION for 2.1.10
  update CONTRIBUTORS for 2.1.10
  updated CHANGELOG for 2.1.10
  fixed CS
  [Process] Cleanup tests & prevent assertion that kills randomly Travis-CI
  [Filesystem] Fix regression introduced in 10dea948

Conflicts:
	src/Symfony/Component/Process/Tests/AbstractProcessTest.php