Merge branch 'stable' into master

app.py

@@ -612,4 +612,4 @@ if __name__=="__main__":
     http_server = tornado.httpserver.HTTPServer(tornado.wsgi.WSGIContainer(app))
     http_server.listen(server_set['port'], address=server_set['host'])
     
-    tornado.ioloop.IOLoop.instance().start()
+    tornado.ioloop.IOLoop.instance().start()