Resource specific events inconsistent with Client events

[samuelg]

Client events use a built in EventEmitter. Resource specific events however use a wrapper around an EventEmitter. Some of the implementation is inconsistent with the way an EventEmitter should work.

1 - attaching more than one callback via resource.on('event', callback) only attaches the first callback
2 - removeListener acts like removeAllListeners but does not actually remove the underlying EventEmitter attached callback
3 - removeAllListeners is not implemented