Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- README.md
  discarded upstream changes
- app/controllers/api/v1/bookmarks_controller.rb
  finally merged upstream, some code style fixes
  and slightly changed pagination code
- app/controllers/application_controller.rb
  changed upstream to always return HTML error pages
  slight conflict caused by theming code
- app/models/bookmark.rb
  finally merged upstream, no real conflict
- spec/controllers/api/v1/bookmarks_controller_spec.rb
  finally merged upstream, slightly changed pagination code

app/lib/feed_manager.rb

@@ -168,7 +168,7 @@ class FeedManager
       crutches = build_crutches(account.id, statuses)
 
       statuses.each do |status|
-        next if filter_from_home?(status, account, crutches)
+        next if filter_from_home?(status, account.id, crutches)
 
         add_to_feed(:home, account.id, status, aggregate)
       end