alfred: use network.mac as ID if present

alfred.py

@@ -23,6 +23,11 @@ class alfred:
       except KeyError:
         pass
 
+      try:
+        node_alias['id'] = node['network']['mac']
+      except KeyError:
+        pass
+
       if 'hostname' in node:
         node_alias['name'] = node['hostname']
       elif 'name' in node:

nodedb.py

@@ -191,6 +191,9 @@ class NodeDB:
       if 'firmware' in alias:
         node.firmware = alias['firmware']
 
+      if 'id' in alias:
+        node.id = alias['id']
+
   # list of macs
   # if options['gateway']:
   #   mark_gateways(options['gateway'])