Make the data block returned by the server mirror that of the build server. Make the UI respond to the new status format for pushing.

endpoints/api.py

@@ -874,15 +874,15 @@ def get_repo_builds(namespace, repository):
         return node_status
 
       # If there was no status url, do the best we can
+      # The format of this block should mirror that of the buildserver.
       return {
         'id': build_obj.id,
         'total_commands': None,
-        'total_images': None,
         'current_command': None,
-        'current_image': None,
-        'image_completion_percent': None,
+        'push_completion': 0.0,
         'status': build_obj.phase,
         'message': None,
+        'image_completion': {},
       }
 
     builds = model.list_repository_builds(namespace, repository)