0.23.90:
- Started using github actions for CI and binary releases
- Fixed several issues with configure.ac, making it auto-detect
most things, when possible - README.md now shows the absolute minimum requirement for
building ZBar on Ubuntu - Fixed some build issues
- Make it compatible with Python 3.9
- Fixed some Python 3.9 and Qt5 warnings
- Typo fixes
- Several fixes at zbarcam
- zbarimg: fix stderr output when symbols are found