title: FB.ui apprequest, get selected user IDs
body: <p>How can I retrieve the user IDs that were checked in the multi-friend-selector generated by the Application Request Dialog? Ive tried :</p>
  
  <pre><code>FB.ui({ method: 'apprequests',
          message: 'Here is a new Requests dialog...'
      }, function (response) {
          if (response &amp;&amp; response.request_ids) {
              console.log(response.request_ids);
          } 
      });
  </code></pre>
  
  <p>But I dont get any results in the console. Thanks</p>