[READ-ONLY] Subtree split of the Symfony Filesystem Component
Latest commit b2de629 Jan 9, 2017 @fabpot fabpot Merge branch '3.2'
* 3.2:
  [TwigBundle] fixed usage when Templating is not installed
  [Validator] Check cascasdedGroups for being countable
  [Cache] Add changelog for 3.2
  [Cache] Add changelog
  [Filesystem] Check that the directory is writable after created it in dumpFile()
  [HttpFoundation] Improved set cookie header tests
  [Serializer] int is valid when float is expected when deserializing JSON
  [Console] increased code coverage of Output classes
  Added missing headers in fixture files
  [Profiler][VarDumper] Fix minor color issue & duplicated selector