Clean up HandWaveyManager.java

[ksandom]

Task

• Move as much functionality as possible out into dedicated, tested classes.
• Remove as many unused/obsolete variables as possible.
• Linting passes.

Background

This class is where everything has evolved the most, and it's showing it now. Getting this class into a cleaner shape will make the project much more approachable to new-comers.

I'm reserving this ticket for myself because I want it done in a specific way.

[ksandom]

This is in progress in the ksandom/codeClean branch. This is a first iteration clean. Further cleans will happen over time in separate releases.

[ksandom]

Good news

I have the linter working.

Bad news

It seems that I am very over-due for having done this. It's going to take me a while to work through everything.

I might do a release tomorrow to get the the main branch up to date with the latest fixes and clean-ups, before continuing with the clean-up.

[ksandom]

The first code clean PR has just been merged, and included in the latest release. It's the first of what will probably be a few steps towards better code.