Peter Serwylo 58db8a1f00 Correct handling of back button presses during swap workflow.
When electing to "Swap Apps" from the main menu, and a LocalRepoService
is already running, then it jumps straight to the wifi QR fragment.
However, it didn't play nice when pressing the "back" button. This is
now fixed, by manually recreating the backstack in this situation.

It also fires up the NFC push message if NFC exists.
2014-10-22 18:08:32 +10:30
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