Initial attempt that works
Show processed message count and tell user to refresh

Before we have a decent MVC architecture this should be fine.
Make sup/index require-able on its own
Introduce RR as the mocking framework.
Implement LabelService#{add,remove}_labels
Console#{add,remove}_labels delegates to LabelService
Merge pull request #63 from 5long/batch-label-operation

Fix batch label operation in console