Store recorder settings

[pljones]

Just to avoid cluttering #228 with any more bits...

The last "Enable recording" state and the recording directory - now they exist / are on the UI - should be stored in the server settings.

Depends on me finishing #228, of course :).

[pljones]

Aha, now I guess I need to pick this up.
@pljones Maybe this makes it appear in my issue highlights?

[corrados]

As I am in a progress of revising the settings implementation, we may get a lot of merge problems if you start right now. Maybe it is wise to wait for some days until my implementation has settled a bit.

[pljones]

Ah yes, good point. There are a few settings-related Issues still open, I'll see if there are any unrelated ones I was thinking of. (Even the auto-update touches settings as it has settings to store.)

[pljones]

OK, I might pick this up next if things have stabilised.

[corrados]

Yes, go ahead. I'm done for now with my changes in the settings.

[pljones]

Just to tag #513 as the branch for this (in case anyone else is watching).

In fact, I'll close this and leave things to the PR to resolve.