Example of loading Application Configuration in Rails 3

How to use it?

1. copy lib/app_config.rb to your <project>lib/app_config.rb
2. Copy config/config.yml to your <project>/config/config.yml 
3. Copy config/initializer/load_config.rb to your <project>/config/initializer/load_config.rb
4. Modify config/config.yml to add your application configuration