bitchat android 1.2.2 release: privacy & security update

- use tor for all network connections. to activate press on bitchat in top bar -> network -> tor
- sign BLE packages and verify signatures (not enforced yet)
- option to disable location services in geohash overview
- now works without notification permissions

https://github.com/permissionlesstech/bitchat-android/releases/tag/1.2.2