title: How to handle Play Framework 2 database evolutions in production
body: <p>It seems that whenever I change my models, Play Framework asks me to run a script that deletes my entire schema and recreates it.  Obviously this won't work for production, so what is the proper way to handle this in production?</p>
  
  <p>Note, I'm using ebean and Postgres, and hosting on heroku.</p>