Fix websocket send method. Make it work with tornado 4.5. Fix #97

Author: paradoxxxzero

server/wdb_server/state.py

@@ -111,7 +111,7 @@ def _send(self, sck, data):
 class WebSockets(BaseSockets):
     def _send(self, sck, data):
         if sck.ws_connection:
-            sck.write(data)
+            sck.write_message(data)
         else:
             log.warn('Websocket is closed')