implemented first-pass at rtc peer-connection signaling handshake (no DataChannel yet), lots of bug fixes and debug messaging in both client and server. peer-connection handshake works in chrome, still fails in firefox for some reason. logout still doesn't reset sockets properly (must refresh browser). socket.io doesn't seem to be leaving 'rooms' properly, and is also broadcasting incorrectly, so had to implement some filtering on message processing to correct many bugs.