title: how to redirect to particular url on 404
body: <pre><code>@error(404)
  def error404(error):
      return 'Nothing here, sorry'
  </code></pre>
  
  <p>This is the way to response 404 in <code>bottle framework</code>. But On 404 I want to redirect to particular url say <a href="http://abc.com/" rel="nofollow">http://abc.com/</a>. Is it possible?</p>