title: Skip before filter with Active Admin
body: <p>I am using devise and recently added active admin, which created a separate table of admin_users to keep admins.</p>
  
  <p>All works fine with Active Admin when I try to log in and browse around. However, my application controller has this for general users:</p>
  
  <pre><code>before_filter :authenticate_user!, :except =&gt; [:show, :index]
  </code></pre>
  
  <p>Because of this, when inside the active admin interface, whenever I try to edit or delete anything, it asks me to log in. I learned that a skip_before_filter can be used inside the controller in which  the before_filter needs to be excluded, however Active Admin doesn't have a controller file in the controllers folder or anywhere in my project I could look.</p>
  
  <p>can anyone suggest how to make active admin ignore the application beofre_filter which I want to apply on all of the client/user facing?</p>