0.21.6.1075 beta

Boring. Just fixes and weird stuff. Still no tabs.

Changes

- Resolved several crashes
- Improved error reporting for database failures
- Improved database test

Fixes

- ANR in some cases when receiving a push notification while app is closed
- Duplicate "Installed" section in languages list
- Incorrect order of languages
- Incorrect plural rules are applied for custom & beta languages after application restart