- Wasn't being used very much.
- The background workers should only be using idle cpu, so shouldn't
have any outward effect.
- Could also use less workers if necessary.
This reverts commit 04fb17cb3f.
- Am seeing a bug where only one worker continues processing
on python3.8.
- Ubuntu and freedesktop-sdk are still on 3.7.
- Not using any features of 3.8 yet.
- Also removes color from mypy.
- Changed to python3.6.
- Accepted minor differences in golden files.
- php is now 7.1.
- Updated README.
- Need to test that the AppImage still works.
