title: django change default runserver port
body: <p>I would like to make the default port that <code>manage.py runserver</code> listens on specifiable in an extraneous <code>config.ini</code>. Is there an easier fix than parsing <code>sys.argv</code> inside <code>manage.py</code> and inserting the configured port?</p>
  
  <p>The goal is to run <code>./manage.py runserver</code> without having to specify address and port every time but having it take the arguments from the <code>config.ini</code>.</p>