Add close method.

Author: zeekay

flask_uwsgi_websocket/_gevent.py

@@ -27,6 +27,9 @@ def send(self, message):
     def receive(self):
         return self.recv_queue.get()
 
+    def close(self):
+        self.connected = False
+
 
 class GeventWebSocketMiddleware(WebSocketMiddleware):
     client = GeventWebSocketClient