Add a "Geolocation" or "Location" category

I’d like to have a category “Geolocation” (or just “Location”), for discussions and announcements about geolocation at Mozilla.

The dev-geolocation mailing list was used to discuss location-related topics at Mozilla:

The mailing list was useful for talking about cross-product issues, but has been unmaintained for a while. I have moderator access, and I’m reviewing a couple of years of pending posts. I’d prefer a better place for these and future discussions than the mailing list.