Audio setup wheel - strange behaviour

[licaon-kter]

It's called in the UI as "wheel", it animates like a wheel, but it behaves like a slider.

Either make it a slider or make it behave as a wheel: no matter which point I touch the current value is raised/lower, not changed based on position first.

[fat-tire]

I noticed this too. Looks like it's using this widget. I was going to change it to act more like a wheel, but I think just changing the text will make things a lot clearer. So I'm doing that. See pull request #118.