nookieman/TeamMeet — pull request #44 by 0x64746b (2012-04-25 13:47:42+00:00)
Title: Unregister rosterlistener

Else the paused `RosterActivity` will continue to receive notifications
on changes in the roster and try to modify the `ExpandableListView`
accordingly; but the roster serving as the data source is nulled
`onPause()`.

Closes #43.