Merge pull request arachnys#128 from andrewbaxter/serviceapi_url

Add URL to service API

Author: dbuxton

cabot/rest_urls.py

@@ -61,7 +61,9 @@ class ViewSet(viewset_class):
 
 router.register(r'services', create_viewset(
     arg_model=models.Service, 
-    arg_fields=check_group_mixin_fields,
+    arg_fields=check_group_mixin_fields + (
+        'url',
+    ),
 ))
 
 router.register(r'instances', create_viewset(