Merge branch 'master' of github.com:celery/celery

CONTRIBUTORS.txt

@@ -175,3 +175,4 @@ Joe Jevnik, 2014/10/22
 Nathan Van Gheem, 2014/10/28
 Gino Ledesma, 2014/10/28
 Thomas French, 2014/11/10
+Michael Permana, 2014/11/6