Revert everything since start of refactor
Refactor coinbase-android to use coinbase-java and add tests
Fix crashes when requesting or sending an empty amount with QR or NFC
Fix WaitForPaymentFragment
Drop support for Gingerbread
Use Bugsnag
Add debug package name suffix so you don't have to uninstall the prod version of the app when testing
Fix to Bugsnag.
Bump coinbase-java version
Fixup test