title: In Rails, how to have an /admin section, and then controllers within the admin section?
body: <p>I want to have a /admin section in my application, and have routes within this /admin section like:</p>
  
  <p>www.example.com/admin/   (only certain users have acess to this section)</p>
  
  <p>then have controllers in this section like:</p>
  
  <pre><code>/admin/users/{add, new, etc}
  </code></pre>
  
  <p>What are my options for something like this? (using rails 3)</p>