title: Why does Play fail with "Driver not found: [org.postgresql.Driver]"?
body: <p>This is my application.conf:</p>
  
  <pre><code>db.default.driver=org.postgresql.Driver  
  db.default.url="postgres://postgres:postgres@localhost:5432/postgres"
  db.default.user="postgres"
  db.default.password= "postgres"
  </code></pre>
  
  <p>I downloaded postgresql-9.1-902.jdbc4.jar. Included it in my jar files by adding it as an external jar. Still it shows me this error that the driver was not found. Help? </p>