Upgrade celery and django-celery (and dependencies) (bug 846349)

requirements/prod.txt

@@ -1,13 +1,13 @@
-amqp==1.0.11
+amqp==1.0.13
 anyjson==0.3.3
 argparse==1.2.1
 babel==0.9.6
 basket-client==0.3.7
-billiard==2.7.3.28
+billiard==2.7.3.34
 bleach==1.1.5
 boto==2.9.6
 cef==0.5
-celery==3.0.19
+celery==3.0.24
 celery-tasktree==0.3.2
 certifi==0.0.8
 chardet==1.0.1
@@ -18,7 +18,7 @@ dj-database-url==0.2.2
 django-aesfield==0.1
 django-browserid==0.8
 django-cache-machine==0.8
-django-celery==3.0.17
+django-celery==3.0.23
 django-cronjobs==0.2.3
 django_csp==1.0.2
 django-extensions==1.2.1
@@ -52,7 +52,7 @@ hera==0.1.2
 html5lib==0.90
 httplib2==0.8.0
 importlib-no-failure==1.0.2
-kombu==2.5.10
+kombu==2.5.16
 metlog-py==0.9.10
 metlog-cef==0.2
 metlog-raven==0.5