Switched server to use socket.io
Excised 'websocket' (worlize) and 'websocket-server' (miksago) components.
Now using WebsocketServer instead of MultiVersionWebsocketServer because it is no longer multi-version.
Now using ioServer instead of miksagoServer and worlizeServer.
All "SIO" comment blocks should be removed before merging back.
Updated package.json
Merge branch 'socketio' of https://github.com/stvrbbns/BrowserQuest into socketio