added customer repo and test
added transaction repo and test
"added repos"
"Added a git ignore file to remove .ds store"
Merge branch 'first_iteration' of https://github.com/BryanaKnight/sales_engine into first_iteration

This has bryana's changes'
"Latest changes to all the repo classes used meta programming"
added a lot of new relationships which has messed up the tests
"All the test suites fixed after a lot of headache"
adding in the relationship we are on invoice
the damn relationships!!!!!!!!
all the relationships are done!!!!!!!
Business Intelligence
added the a little  bit of BI
added all tests
Merge branch 'business_intelligence' into business
'just merging the two branches!!!'
latest working tests and started business intelligence
fixed bugs, has merchant revenue code
deleted items files
added revenue and revenue by date
combined revenue and revenue(date) methods