title: Can ActiveAdmin load javascript bundled by webpack? - Rails 5.1
body: <p>I've upgraded from rails 4.2.6 to rails 5.1, and then started to use webpack.<br>
  All set up for using webpack have done, but I can't figure out how to load javascript files on the ActiveAdmin page.<br>
  ActiveAdmin loads <code>app/assets/javascripts/active_admin.js.coffee</code> by default.<br>
  Is there a way to load javascript files which is bundled by webpack on the ActiveAdmin page?  </p>