[MlMt] Unread message counters again

[John Cooper]

I'm still seeing bizarre unread message counters, like this:

https://dl.dropboxusercontent.com/u/2997428/Screen%20Shot%202014-04-12%20at%208.33.33%20AM.png

The message counters that are correct in this screen shot are next to 
"All Messages," "Unread," and "Professional." All others are incorrect 
(and particularly the ones next to "Mailboxes" and "Sources."

This is not on the same computer where I'm seeing the odd, vague 
notifications:

https://dl.dropboxusercontent.com/u/2997428/Screen%20Shot%202014-04-07%20at%207.20.18%20AM.png