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

CONTRIBUTORS.txt

@@ -145,3 +145,4 @@ Jeff Balogh, 2012/06/07
 Harm Verhagen, 2012/06/07
 Wes Winham, 2012/06/07
 David Cramer, 2012/06/07
+Steeve Morin, 2012/06/07