stop deploying to the release- folder

[fredrikekre]

This should actually be safe since Documenter don't remove the old directories, so links should still work.

[mortenpi]

Code LGTM. I would leave this open for a short while to see if we gather any feedback.

You're right that this is essentially non-breaking. But I think I should nevertheless ANN the release with this change on Discourse, possibly together with a script / automated PRs that would remove the old release-x.y directories from packages.

[mortenpi]

Also, I was wondering that perhaps we should move the release-x.y ones last in generate_version_file in this PR? I.e. in for group in (named_folders, release_folders, tag_folders). Or, I guess we could remove them altogether.. this way they will stay on the gh-pages branch, but will be hidden from the reader.

[fredrikekre]

Yea lets move them last. If people don't want them to show they can purge the gh-pages branch from these. Then some time in the future we can remove them from generate_version_file, since at that time Documenter has not build those branches in a while anywa.

[fredrikekre]

Actually, lets remove them from the version selector but leave the old release- folders on the branch. That way links will still work as you say.

[fredrikekre]

Rebased.