This is the initial work for what should be a git-managed set of nginx
configs we can include into the Nginx Docs server.
The idea here is we manage redirects in git, and either chron-copy them
to a location we can include via the sites-available/<file>, *or* we
just include them from the git path (if nginx tolerates that)
I can't really _test_ these right now since they are using live URLs. if
we move forward with the soft-launch, we'll have a few opportunities to
maybe test a subset of these URLs and see what happens.
Please let me know if there is anything *obviously* wrong here.
ToDo: The Legacy Docs redirects
