Merge remote-tracking branch 'qubesos/pr/77'

* qubesos/pr/77:
  Don't catch AttributeError for is_outdated() call anymore
  Call is_outdated() on volume object, not name

qubesmanager/table_widgets.py

@@ -376,13 +376,10 @@ class VmUpdateInfoWidget(QtGui.QWidget):
 
         outdated_state = False
 
-        try:
-            for vol in vm.volumes:
+        for vol in vm.volumes.values():
             if vol.is_outdated():
                 outdated_state = "outdated"
                 break
-        except AttributeError:
-            pass
 
         if not outdated_state and getattr(vm, 'template', None)\
                 and vm.template.is_running():