Release v1.9.1 on 2022-04-18.

1. 832bcdf osmoappdesc.py: switch to python 3 by Oliver Smith · 4 years, 6 months ago osmith/fix-python3
2. 31b4729 Remove libosmo-legacy-mgcp and osmo-bsc-mgcp by Pau Espin Pedrol · 6 years ago
3. 87bd9be Initially implement the new osmo-mgw and libosmo-mgcp by Philipp Maier · 7 years ago
4. e9920f2 split off osmo-mgw: remove files, apply build, rename by Neels Hofmeyr · 7 years ago
5. a1756f3 Implement IuCS (large refactoring and addition) by Neels Hofmeyr · 8 years ago
6. 85929a7 move openbsc/* to repos root by Neels Hofmeyr · 7 years ago