Initial commit
adds sales_engine class
Introduces sales engine concepts
Adds merchant and merchant repo with testing
Adds invoice item & repo with tests
adds invoice, invoicerepository and tests
Merge branch 'development' of github.com:MarcGarreau/sales_engine into development

'merges invoice item, invoice item repo, and test'
Adds customers & repo with tests
Merge branch 'development' of github.com:MarcGarreau/sales_engine into development
adds item/repo with tests
Adds transaction & repo with tests
Merge branch 'development' of github.com:MarcGarreau/sales_engine into development
Rakefile added - defaul test
adds testhelper file
Merge branch 'development' of github.com:MarcGarreau/sales_engine into development
Sales engine class cleanup
Introduce finder module
pseudo code for finder.rb
ADDS SO MANY COMMAS
Comments for tomorrowland