Add initial Rails application.
Add db/schema.rb.
Remove unnecessary gems and turbolinks.
Clean up config/routes.rb and add default/root controller/action.
Don't automatically
generate assets or helpers.
Switch from Test::Unit to RSpec.
Add "Import" resource with data file uploads.
Add ImportLineItem model and ImportProcessor service object.
Gitignore uploads.
Process import upon creation (in controller) and show line items.
Calculate gross revenue when processing an Import.
Add import links to header in layout.
Add bin/bootstrap script and update README.