title: declarative_authorization and namespaces
body: <p>Do you know - can declarative_authorization control access to namespace'd resources or not? I've tried something like </p>
  
  <pre><code>has_permission_on [:admin, :users], :to =&gt; [:index, :show, :new, :create, :edit, :update, :destroy, :search]
  </code></pre>
  
  <p>but it's not working :( any ideas on this?</p>