The project was rewritten from Elixir to Go, primarily because:

- I don't write Elixir anymore and don't want to maintain a project in a
  language I no longer write
- I already write Go for other projects, including my day job, so it's
  a safer bet for a project that I want to maintain long term
- Go allows me to build portable executables that will make it easier
  for others to run farside on their own machines

The Go version of Farsside also has a built in task to fetch the latest
services{-full}.json file from the repo and ingest it, which makes
running a farside server a lot simpler.

It also automatically fetches the latest instance state from
https://farside.link unless configured as a primary farside node, which
will allow others to use farside without increasing traffic to all
instances that are queried by farside (just to the farside node itself).

Added support for Bandcamp front-end Tent

No regex, as Bandcamp URLs don't 1:1 translate to Tent URLs

LibreX is maybe abandoned and has been replaced by LibreY. Requests to
LibreX are now forwarded to LibreY instances to avoid issues.

Farside ratelimiting has been updated to return a 429 when a user
exceeds 1 request/sec. This should help eliminate a lot of scraping type
behavior that instance maintainers have been dealing with from Farside
lately.

Service changes:
- Teddit removed (not maintained)
- Bibliogram replaced by Proxigram
- Libreddit merged with redlib

Teddit is no longer maintained

Libreddit has been forked to redlib, which seems to be actively trying
to work around the changes to Reddit's API.

Libreddit instances are now a mirror of redlib instances for the time
being.

Teddit's instance file contains null URL entries, which was breaking the
nightly build. This ensures that the URL exists for an entry before
continuing with processing.

Co-authored-by: Ben Busby <contact@benbusby.com>