add super slow worker [ci skip]

Procfile

@@ -3,3 +3,4 @@ redis: redis-server
 catchall_worker: env QUEUE=* bundle exec rake resque:work
 slow_worker: env QUEUES=socket_webfinger,photos,http_service,dispatch,receive_local,mail,receive,receive_salmon,http,delete_account bundle exec rake resque:work
 priority_worker: env QUEUES=socket_webfinger,photos,http_service,dispatch,mail,delete_account bundle exec rake resque:work
+super_slow_worker: env QUEUE=http,receive_salmon bundle exec rake resque:work
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