Put database.yml into the code base

It works by default, we have a mechanism to configure it (dotenv.example)
and we want to be a 12factor app, right? Let's do this...

bin/osem-init.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 # Setup the app if it isn't already setup
-bundle exec rake setup:bootstrap
+bundle exec rake db:bootstrap
 # Start the app
 foreman start -p 3000