title: Accordion list with OnsenUI
body: <p>Is this possible with OnsenUI?  <a href="http://codepen.io/ionic/pen/uJkCz" rel="nofollow">http://codepen.io/ionic/pen/uJkCz</a></p>
  
  <p>I am sure I saw a demo of it in the docs before the 1.1 update, but I can't find it now. Does such a demo exist and, more importantly, is it possible to do this with the framework? </p>
  
  <p>The trivial example below is not encouraging:</p>
  
  <pre><code>&lt;ons-list&gt;           
      &lt;ons-list-item modifier="chevron"&gt;One&lt;/ons-list-item&gt;
      &lt;ons-list-item modifier="chevron"&gt;
          &lt;ons-list&gt;           
              &lt;ons-list-item modifier="chevron"&gt;One&lt;/ons-list-item&gt;
              &lt;ons-list-item modifier="chevron"&gt;Two&lt;/ons-list-item&gt;
          &lt;/ons-list&gt;
      &lt;/ons-list-item&gt;
  &lt;/ons-list&gt;
  </code></pre>