The play framework clickstart has been updated.
Play 2.2.1 (2.2.2 out any day now) but also some DB settings have been enhanced. There is a limit to the connections that can be used for the default CloudBees DB service - and some people were hitting them as they build out their app.
The changed settings:
(if you know play, and know the DB connection pool - perhaps you can suggest better defaults?).