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

Conflicts:
	README.md
	app/controllers/statuses_controller.rb
	app/lib/feed_manager.rb
	config/navigation.rb
	spec/lib/feed_manager_spec.rb

Conflicts were resolved by taking both versions for each change.
This means the two filter systems (glitch-soc's keyword mutes and tootsuite's
custom filters) are in place, which will be changed in a follow-up commit.

app/views/stream_entries/_simple_status.html.haml

@@ -13,7 +13,7 @@
         %strong.p-name.emojify= display_name(status.account, custom_emojify: true)
         %span= acct(status.account)
 
-  .status__content.p-name.emojify<
+  .status__content.emojify<
     - if status.spoiler_text?
       %p{ style: 'margin-bottom: 0' }<
         %span.p-summary> #{Formatter.instance.format_spoiler(status)}&nbsp;