title: Sencha Touch - Creating a List - Want to add a class to the last item
body: <p>I have a list I am creating like so:</p>
  
  <pre><code>        var listTpl = new Ext.XTemplate(
          '&lt;div class="menuListItemContainer"&gt;',
              '&lt;h1&gt;MENU&lt;/h1&gt;',
              '&lt;tpl for="."&gt;',
                      '&lt;div class="menuListItem"&gt;',
                          '{title}',
                      '&lt;/div&gt;',
              '&lt;/tpl&gt;',
          '&lt;/div&gt;',
          '&lt;div class="x-clear"&gt;&lt;/div&gt;'
      );
  </code></pre>
  
  <p>I have a Json file where the {title} is coming from, what i'd like to do but not sure how is the last item in the last I would like to attach a class for styling purposes.  </p>
  
  <p>Any ideas?</p>