The server has now 2 notification streams

* A new one for controller related events (compute, appliance templates etc.)
* The existing one for project related events (links, nodes etc.)

gns3server/controller/drawing.py

@@ -186,7 +186,7 @@ class Drawing:
         data = self.__json__()
         if not svg_changed:
             del data["svg"]
-        self._project.controller.notification.emit("drawing.updated", data)
+        self._project.controller.notification.project_emit("drawing.updated", data)
         self._project.dump()
 
     def __json__(self, topology_dump=False):