am ff0220f5: Unregister observer when tearing down service.
Jeff Sharkey [Tue, 26 Mar 2013 19:17:54 +0000 (12:17 -0700)]
* commit 'ff0220f5b4624049a1052bd868d7706eee5a0daf':
  Unregister observer when tearing down service.


Trivial merge