Kevin P. Fleming

Turns out that one was easy to fix... I'm continuing onwards :-)

OK, new status report: the actual CPython build succeeds, but then the process stops because `Tools/scripts/run_tests.py` does not exist in 3.13. I'll clean up and push what I've got so...

I've just updated to 3.13.0b2, and removed the patch that was only needed until that release.

I left a FIXME in `validation.rs` because it will need to be updated to have the proper list. This is why :)

A little more progress... the branch is now building 3.13.0rc1, and it appears that the PGO and MUSL issues are all that is left on Linux. There are still problems...

Fantastic!

Closing in favor of #319.

Indeed it needs to be possible to specify more that one catalog zone, which means this config option needs to have a plural name instead of singular (`forward-zones-catalog` -> `forward-zones-catalogs`)....

All of the suggestions have been incorporated while rewording some of the content to better reflect the ability to specify more than one catalog zone. Thanks!

This seems like a good configuration model to me, although I'm still a fan of putting the 'zone retrieval' parts in a top-level `zone` definition, the same as they would...