Buffered Ports 

Re-issue of pull request https://github.com/planthaber/rock-webapp/pull/11 against master
Opening a websocket on the server side is implemented via a GET request (http protocol).

The server is requested to open a websocket, it replies with connection information, and then the the ws is connected.

http://en.wikipedia.org/wiki/WebSocket#WebSocket_protocol_handshake
Opening the WS with a post request just won't work (tried that first)