Use locales/translations to display friendly versions of status flags
Shift pricing display logic into a helper to make it more DRY and also to simplify the view
Don't abuse #match in the routes, and inside put the API in it's own namespace
Constant values should be Constants, not a method
Change class method 'pricefor' to instance method
Clean up Beer.ontap method
Re-arrange class methods, create Constants
Phil's changes merged into master