0.9.8 - the UI overhaul

Features:
- support for Android's always-on vpn system setting
- complete new ui based on material design
- improved error handling
- updated crypto libraries
- support for Android 8.1
- new translations
- new experimental feature to save battery

several bugfixes
And much more: https://0xacab.org/leap/bitmask_android/blob/master/CHANGELOG