title: django converting old datetime field to new 1.4 datetime with time zone aware in SQLite
body: <p>I have a django 1.3 project and I'm in the process of adding text notifications that will run on a certain schedule.  As such, I'm going to need the app to be timezone aware.  It looks like django 1.4 handles this pretty well.  THe problem is that I am using SQLite for db, and it doesn't store the timezone info, so I have to convert.   I'm a django newbie.  ANy suggestions on how to convert datetime fields in SQLlite to timezone-aware fields.</p>
  
  <p>By the way, when I launch the manage.py shell after upgrading to django 1.4 and activating timezone support, I get the following message:</p>
  
  <pre><code>RuntimeWarning: SQLite received a naive datetime (2012-04-05 15:18:49.939725) while 
  time zone support is active. RuntimeWarning)
  </code></pre>
  
  <p>Thanks!</p>