title: Does interpolation work in event bindng?
body: <p>Does interpolation work on event-binding?  I tried the following without success:</p>
  
  <pre><code>&lt;button type="button" click.delegate="${action}()"&gt;${action}&lt;/button&gt;
  </code></pre>
  
  <p>action is a VM variable set to one of "edit","add","cancel".  There exist VM functions: edit, add, and cancel.</p>