title: dynamically add new option in jquery chosen plugin where select multiple
body: <p>I am using choose master <a href="http://harvesthq.github.com/chosen/" rel="nofollow">http://harvesthq.github.com/chosen/</a></p>
  
  <p><strong>Example</strong></p>
  
  <hr>
  
  <pre><code>&lt;select data-placeholder="Click to Select Role..." style="width:200px;"  id="geoRange" name="geoRange" class="chzn-select" tabindex="8" multiple&gt;
  &lt;option value="1"&gt;England&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <hr>
  
  <p>I am adding new option in this select </p>
  
  <hr>
  
  <pre><code>$('#geoRange').append( new Option('USA',2) );
  </code></pre>
  
  <hr>
  
  <p>It is not working </p>
  
  <p>How can I add new option?</p>