fix up hub queueing to work w/ stomp queues

plugins/OStatus/lib/hubdistribqueuehandler.php

@@ -56,6 +56,7 @@ class HubDistribQueueHandler extends QueueHandler
         } else {
             common_log(LOG_INFO, "No PuSH subscribers for $feed");
         }
+        return true;
     }
 
     function pushGroup($notice, $group_id)

plugins/OStatus/lib/huboutqueuehandler.php

@@ -43,7 +43,7 @@ class HubOutQueueHandler extends QueueHandler
             common_log(LOG_ERR, "Failed PuSH to $sub->callback for $sub->topic: " .
                                 $e->getMessage());
             // @fixme Reschedule a later delivery?
-            // Currently we have no way to do this other than 'send NOW'
+            return true;
         }
 
         return true;