Task #3800: prototype "collateral freedom" and cloud file distribution techniques
github as fdroid repo host
Github provides good collateral freedom support, has solid HTTPS, and static paths. It can serve as an fdroid repo host.
fdroid server update will need to overwrite the existing git repo each time to update the repo without adding it all to the git history. While it might be useful to have a git history, github has a 1GB limit on free repos, and the Guardian Project repo is currently 1GB.
For the URL, the "raw" hostname must be used, not "github.com".