* Disable AppVeyor
* Actions: disable other jobs
* Actions: implement windows job
* Use requirements
* Typo in version parser
* Replace type nul for PowerShell
* Change Python version to 3.7
* buildPy2exe: exclude tcl and tkinter
* buildPy2exe: rename zip archive to include extension
* Actions for Windows: build on Python 3.8
* Re-enable build flow for other platforms
* Remove AppVeyor configuration file