Implement draft-ietf-hybi-thewebsocketprotocol-08

```
http://tools.ietf.org/id/draft-ietf-hybi-thewebsocketprotocol-08.txt

Semantic changes
- Absolute path is now allowed for resource
- extension parameter is token
- Sec-WebSocket?-Protocol from server to client is token
- Status code 1005 and 1006
- Internal error results in 1005

```

Original issue reported on code.google.com by `toyoshim@chromium.org` on 13 Jul 2011 at 4:55
