I just ran `git filter-repo` to remove all traces of the "files/"
directory from https://github.com/schemeorg/files.scheme.org. If you
have cloned this repo, `git pull` will break due to the incompatible
histories.

The "files/" directory contained all the actual files. I'll put these up
on the current main server. I'll add a script to the files.scheme.org
repo to download all the files and verify the hashes. I hope at least a
couple of people will keep their own mirror of the archive in this way.