- Add web hook queue code back in. We'll remove it and turn it off after this CL goes to prod

- Make notification lookup always be by repo and its UUID, rather than the internal DB ID
- Add the init script for the notification worker

workers/notificationworker.py

@@ -22,9 +22,11 @@ logger = logging.getLogger(__name__)
 
 class NotificationWorker(Worker):
   def process_queue_item(self, job_details):
-    notification_id = job_details['notification_id'];
-    notification = model.lookup_repo_notification(notification_id)
-
+    notification_uuid = job_details['notification_uuid'];
+    repo_namespace = job_details['repository_namespace']
+    repo_name = job_details['repository_name']
+    
+    notification = model.get_repo_notification(repo_namespace, repo_name, notification_uuid)
     if not notification:
       # Probably deleted.
       return True