Improving feed queries, switching API to doorkeeper authentication

Gemfile

Gemfile.lock

app/controllers/api/accounts_controller.rb

app/controllers/api/follows_controller.rb

app/controllers/api/statuses_controller.rb

app/controllers/api_controller.rb

app/helpers/stream_entries_helper.rb

app/models/feed.rb

app/models/status.rb

app/services/precompute_feed_service.rb

app/views/stream_entries/_status.html.haml

config/initializers/doorkeeper.rb