Prepare the first "v1" release as the last "non-pre-release beta".

In the future, pre-releases will be submitted to the beta channel in Google Play, production releases will be submitted to the main channel.

What's Changed

• Category Page (#32, #256)
• Net Worth respects all accounts (#163)
• Allow sharing files to the app to attach to transactions (#207)
• Show piggy bank groups (#221)
• Fix various issues around fingerprint checks (#287, #286)
• Allow filtering the transaction list by tags (#279)
• Fixed transaction screen only showing the first 50 tags by @dballagi in https://github.com/dreautall/waterfly-iii/pull/264
• Saving the selected bill by @dballagi in https://github.com/dreautall/waterfly-iii/pull/265
• Notification listener support for additional banking apps (#259 and others)