Fix config not defined in ipcinterface

deluge/ui/gtkui/ipcinterface.py

@@ -59,6 +59,7 @@ log = logging.getLogger(__name__)
 
 class IPCProtocolServer(Protocol):
     def dataReceived(self, data):
+        config = ConfigManager("gtkui.conf")
         data = rencode.loads(data)
         if not data or config["focus_main_window_on_add"]:
             component.get("MainWindow").present()