Play 1.3.1 support

Change effective on 23 June 2015

Heroku’s support for the Play framework has upgraded the default version to 1.3.1. You can specify a version for your Play 1.x application by adding the following to your conf/dependencies.yml file:

- play 1.3.1

For more information on Heroku’s support for Play 1.x and 2.x please see the Dev Center. For more information on Play 1.3.1 see the official Play Documentation.