Created Rails application
Add slim-rails to Gemfile
Create files_controller with new and create
Add carrierwave gem
Add multipart for form and test params[:file]
Add Purchaser model
Add item with price and description
Migrate to update schema.rb
Add merchant with update to item for merchant_id
Add associations between merchant and items
Add items_purchasers association table
Add associations between items and purchasers
Parse file and normalize into database
Create a border around tables