Prefer non-markdown README as that is what is packaged when Play! apps are packaged with 'dist'.
Verify application still starts with application secret set via Heroku control panel.
Test setting of application secret set via Heroku control panel.
Reinstate development application secret as overridable.
Migrate from Build.scala to sbt.
Move reactive mongo plugin from plugins.sbt to build.sbt.
Hide publishing of configuration parameter.