implementing basement of a WebSocketSocket prototype
integrate WebSocketSocket to Weto WebSocketBase
fixed bug in upgrade management

validateRequest has changed the headers
added support for directly write something to the specific client
upgrade mechanism and WebSocketSocket should now support extensions
added api to address specific sockets
WebSocketBase #_write now handles socket assignment and data conversion
added test for covering WebSocketBase #send([sid,] data) with extensions
adapted client to new base api
adjusted create_upgrade_request tests to new api
Merge branch 'socket' of github.com:bodokaiser/node-websockets into socket