Use casefold in place of lower
Make lint job fail if errors are detected
Use join instead of utils.list_to_string
Simplify get_recursive_filelist with the glob library
Fix handling of un-parseable numbers in xlate
Separate release/packaging and CI
Add an ignore for flake8 on ctversion.py as it is generated
Cleanup unused portions of the makefile
Use 'build' to generate PyPi distribution
Python venv on windows uses the Scripts directory
Separate dependencies into files and add optional dependencies
Update natsort usage to be compliant with the latest version (#203)
Set PyQt5 to 5.15.3, 5.15.4 has issues with pyinstaller
Add pyproject.toml with setuptools, isort and black configuration
Add optional dependencies (#191)
Update README (#174)
