title: how to reinitialize the database
body: <p>I have downloaded a demo copy of Hybris for evaluation purposes, and it has been more than 30 days since I downloaded it, and recently I tried to restart it, but it would not, and instead gave me the following message:</p>
  
  <p>"This licence is only for demo or develop usage and is valid for 30 days.
  After this time you have to reinitialize database to continue your work."</p>
  
  <p>I am/have been running it on a Mac, and the database is MySQL... </p>
  
  <p>What (UNIX) commands do I use to re-initialise the database, so that I can start up the Hybris Server?</p>