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

Conflicts:
- app/views/admin/pending_accounts/index.html.haml
  No real conflict, upstream changes too close to glitch-specific
  theming system changes.
- config/navigation.rb
  Upstream redesigned the settings navigation, took those changes
  and re-inserted the flavours menu.

app/controllers/about_controller.rb

@@ -17,7 +17,10 @@ class AboutController < ApplicationController
   private
 
   def new_user
-    User.new.tap(&:build_account)
+    User.new.tap do |user|
+      user.build_account
+      user.build_invite_request
+    end
   end
 
   helper_method :new_user