title: Delete default version of the default module app engine
body: <p>I would like to delete the default version of the default module on app engine. When I run: </p>
  
  <pre><code>appcfg.py delete_version -A app_id -V version
  </code></pre>
  
  <p>I am getting:</p>
  
  <pre><code>Cannot delete the default version of the default module.
  </code></pre>
  
  <p>I do not need anymore this version as I have created a module for my app engine application (with a version inside).</p>