Add Carrier model and resources :carriers to routes.rb
Add location, origin and destination models, plus their corresponding controllers and resourced routes
Update development database seed
Add Day model, days controller and route resources for days
Add DestinationHoliday model, controller and route resources
Add Holiday model, controller and route resources
Add TransitTime model, controller and route resources
Update development database seed
Remove haml gem and add haml-rails gem