title: Setting RadDatePicker Date Without Firing ValueChanged
body: <p>Using the client API, I'd like to be able to do this:</p>
  
  <pre><code>picker.set_selectedDate(new Date());
  </code></pre>
  
  <p>Without the valueChanged event handler firing, is there another way in the API to do this?  Again this is all client-side JavaScript.</p>
  
  <p>Thanks.</p>