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/controllers/remote_follow_controller.rb

@@ -6,6 +6,7 @@ class RemoteFollowController < ApplicationController
   before_action :set_account
   before_action :set_pack
   before_action :gone, if: :suspended_account?
+  before_action :set_body_classes
 
   def new
     @remote_follow = RemoteFollow.new(session_params)