This change pulls websockify 6d9deda9c5.

Most note worthy changes:
- Pulls in web-socket-js 7677e7a954 which updates to IETF 6455 (from
  Hixie)
- Binary support detection and use in include/websock.js
- Add ssl and unix target support
- Add multiple target support via config file/dir.
- Idle timeout exit