 
     message.sendPrivateMessage
       body       : "@#{nick} stopped collaboration. Access to the shared assets is no more possible."
+      payload    : 'system-message' : 'stop'
       channelId  : @socialChannel.id
-      payload    :
-        'system-message' : 'stop'
     , callback



  setRealTimeManager: (object) =>
    callback = =>
      object.rtm = @rtm
      object.emit 'RealTimeManagerSet'


    message.sendPrivateMessage
      body       : "@#{nick} activated collaboration."
      payload    : 'system-message' : 'start'
      channelId  : @socialChannel.id
    , callback


