Heroku embedded Tomcat setup

Signed-off-by: Paul Condran <paul@paulcondran.com>
Add postgres database configuration

Postgres persistence definition
Check for Heroku database URL

Signed-off-by: Paul Condran <paul@paulcondran.com>
Preparing for Heroku deploy

Adding Procfile for Heroku
Adding some debug logging
Fix up datbase connection

Signed-off-by: Paul Condran <paul@paulcondran.com>