Backstack is screwed up by notification tap
steps to reproduce:
1 start app
2 hit connect, wait for successful connection
3 hit home button
4 go to the notification area and select LEAP
5 hit 'configure' from the dialog
6 now you are back at the dashboard. hit back button from here, you get the dashboard again.
Sometimes hitting back returns me to the provider selection list. I think we should only return here if the user chooses 'switch provider'
(from redmine: created on 2013-07-29, closed on 2013-08-13)