guardian/guardian-configuration — pull request #13 by robb1e (2012-03-24 20:09:19+00:00)
Title: Read properties from the system [required for Heroku production configuration]

Although this is generally discouraged, it is the recommended practice for production configuration for Heroku deployed applications. This will enable an application to be deployed to Heroku without any code change from the local setup, or deployment setup on other environments.