Replace setoptconf

[carlio]

setoptconf is used for loading configuration values but is an old, stale library; #438 shows that it needs to be updated, or an alternative found.\

(for now a temporary solution is in place)

This issue is here as a placeholder for work done to properly replace it with another library (or alternatively take on maintaining setoptconf completely but... I really don't want to do that).

(ping @jayclassless )

[jayclassless]

Oh wow -- a blast from the past. :)

If you send over a PR with the fixes you made, I'd be happy to merge them and publish an update to PyPI to hold you over until you're able to completely replace it.

[graingert]

@jayclassless thanks I made a PR https://github.com/jayclassless/setoptconf/pull/3

[jayclassless]

@jayclassless thanks I made a PR jayclassless/setoptconf#3

Merged and published as 0.3.0.

[graingert]

@jayclassless nice, can you also upload a wheel so nobody will be impacted by future setuptools changes?

[jayclassless]

Yup, good call. Uploaded.