title: GWT MVP History back
body: <p>I have a MVP application implemented. Back button is working fine. 
  I'd like to programatically go back to the previous place. How would I do that?</p>
  
  <p>I'm looking for something like:</p>
  
  <pre><code>clientFactory.getPlaceController().goBack();
  </code></pre>
  
  <p>Thanks.</p>