title: How do I completely delete my App Engine instance?
body: <p>I've decided to go with Google Compute Engine instead of App Engine. <br />
  I want to completely disable the App Engine. <br />
  I've already deployed an empty project (app.yaml + empty index.php) instead of the older one to save on storage space, but the URL (*.appspot.com) is still accessible and it'll create instances when accessed. <br />
  How do I disable that?</p>