Status command support QPS statistics（php start.php status -d）.
Add unlisten pauseAccept resumeAccept method for Worker.
Add graceful reload/stop (for example php start.php reload -g)
Adding support subprotocol for websocket.
Fix unix domain socket file permission. #213 .
Fix SSL Reconnect issue .
Fix ping of websocket for workerman as client side. #217
Other optimizations.
Thanks for @farwish @ares333 @vponomarev @codekissyoung @vponomarev awesome pull requests.