Refactoring Grape API methods into normal controllers & other things

Gemfile

Gemfile.lock

app/api/mastodon/api.rb

app/api/mastodon/entities.rb

app/api/mastodon/ostatus.rb

app/api/mastodon/rest.rb

app/assets/javascripts/atom.coffee

app/assets/javascripts/home.coffee

app/assets/javascripts/profile.coffee

app/assets/javascripts/xrd.coffee

app/assets/stylesheets/accounts.scss

app/assets/stylesheets/api/salmon.scss

app/assets/stylesheets/api/subscriptions.scss

app/assets/stylesheets/application.scss

app/assets/stylesheets/stream_entries.scss

app/controllers/accounts_controller.rb

app/controllers/api/salmon_controller.rb

app/controllers/api/subscriptions_controller.rb

app/controllers/atom_controller.rb

app/controllers/profile_controller.rb