Allocate application IDs for IOU nodes on the controller.

An application ID is used by IOU to generate its interface Mac addresses. They must be unique across all opened projects sharing the same computes to avoid Mac address collisions.

gns3server/controller/__init__.py

@@ -481,7 +481,7 @@ class Controller:
     @property
     def projects(self):
         """
-        :returns: The dictionary of projects managed by GNS3
+        :returns: The dictionary of projects managed by the controller
         """
 
         return self._projects