commit 7c1423a8551f58405df9b8e3cacca7da83a8c9df
Author: Tim Abbott <tabbott@zulip.com>
Date:   Tue Aug 28 12:41:50 2012 -0400

    Initial commit of sqlalchemy models.
    
    (imported from commit 8f4763da55bd3f2bbea090d196c6d7850e2b2c71)