added to allow generic resource handling, not strictly necessary for the fix. You can ignore it.

A good idea, in my opinion, would be reuse this resource handler, make resource addition public and add it always to the pipeline. It would be very useful for small resource handling like serving the gui. I know you said it wasn't intended for the api of netty-socket.io but the feature is already there (flashsocket needs it) you just need to unlock it :)