title: GAE webapp application internationalization with Babel
body: <p>How would you go about internationalizing a Google App Engine webapp application using <a href="http://babel.edgewall.org/" rel="noreferrer">BABEL</a>? I am looking here for all the stages:</p>
  
  <ol>
  <li>Marking the strings to be translated.</li>
  <li>Extracting them.</li>
  <li>Traslating</li>
  <li>Configuring your app to load the right language requested by the browser</li>
  </ol>