Pre-Release 4.1.0-beta4

Users of prior 4.1.0 betas who have set a non-default UI Scale probably want to set it to default (0 or 0.0 in the older versions) before installing this version.

This is mostly another iteration on the UI Scaling functionality, but also fixes EDMC.exe to actually work again.

• Fix import order in EDMC.py so the CL utility actually runs.
• This also involved updating the development modules we use, you only need to worry if you're using flake8 or the like in helping develop this application.
• UI Scaling is now versus what it would otherwise have been at startup.
  1. 100 is now the default.
  2. If you select 0 it will become 100 on the next startup.
  3. The UI Scale bar will now size correctly per current scaling rather than getting ahead of itself and sizing as per the next-start scaling you now have set.
  4. We now strictly have a range of 10% to 400% of your default scaling rather than a somewhat arbitrary range that hopefully includes it.