amqp: Use noAck option

Author: jonnor

src/amqp.coffee

@@ -191,10 +191,9 @@ class MessageBroker extends Client
             catch e
               null
             sub.handler sub.binding, data
-          @channel.ack message
 
         subscribeOptions =
-          noAck: false
+          noAck: true
         @channel.consume name, onSubscribedQueueData, subscribeOptions, (err) ->
           debug 'broker created subscription queue', err
           return callback err