title: Setting IPython Notebook save directory when using through django_extensions
body: <p>I am using IPython Notebook through django_extensions:</p>
  
  <pre><code>     python manage.py shell_plus --notebook
  </code></pre>
  
  <p>This saves the Notebook files to the current folder (Django project folder). How can I change the save location for <code>.ipynb</code> files?</p>