* Fix misuse of foreign_type
* Fix use of removed "add_template_helper"
* Use response.media_type instead of response.content_type in tests
* Fix CSV export controller test on Rails 6
Rails 6 sets a "filename*" field in the Content-Disposition header to
explicitly encode the filename as UTF-8.
This changes checks the first part of the Content-Disposition header so
it matches in both Rails 5 and Rails 6.
* Fix emoji formatting with Rails 6
* Make emoji output more idiomatic and robust
* Switch from redis-rails gem to built-in Rails redis cache storage
* Add nodeinfo endpoint
* dont commit stuff from my local dev
* consistant naming since we implimented 2.1 schema
* Add some additional node info stuff
* Add nodeinfo endpoint
* dont commit stuff from my local dev
* consistant naming since we implimented 2.1 schema
* expanding this to include federation info
* codeclimate feedback
* CC feedback
* using activeserializers seems like a good idea...
* get rid of draft 2.1 version
* Reimplement 2.1, also fix metaData -> metadata
* Fix metaData -> metadata here too
* Fix nodeinfo 2.1 tests
* Implement cache for monthly user aggregate
* Useless
* Remove ostatus from the list of supported protocols
* Fix nodeinfo's open_registration reading obsolete setting variable
* Only serialize domain blocks with user-facing limitations
* Do not needlessly list noop severity in nodeinfo
* Only serialize domain blocks info in nodeinfo when they are set to be displayed to everyone
* Enable caching for nodeinfo endpoints
* Fix rendering nodeinfo
* CodeClimate fixes
* Please CodeClimate
* Change InstancePresenter#active_user_count_months for clarity
* Refactor NodeInfoSerializer#metadata
* Remove nodeinfo 2.1 support as the schema doesn't exist
* Clean-up
