Add and use MaybePushAddress
Add and use MaybePushAddress

Bugfix: Supress "address" key in transaction details, when the
destination isn't recognized

Tranz5/bottlecaps,bottlecaps-foundation/bottlecaps,Tranz5/bottlecaps,Tranz5/bottlecaps,bottlecaps-foundation/bottlecaps,bottlecaps-foundation/bottlecaps,bottlecaps-foundation/bottlecaps,bottlecaps-foundation/bottlecaps,Tranz5/bottlecaps