Implemented getLeadSinger 2D array
Implemented getting 2D array for HASSONG
Merge branch 'master' of https://github.com/ellina-s/cs304 into ellina
Implemented Customer Registration and added test for it
Refactored Customer Registration and test for it
Implemented Customer Authentication function. Added tests
Added more tests for authentication and refactored some code
Finished Manager Transactions, update other files
Split Purchase transaction into steps
Merge branch 'master' of https://github.com/ellina-s/cs304 into ellina
Merge pull request #14 from ellina-s/ellina

Ellina
Fixed bugs in ManagerTransaction completed clerk
Implemented Item Search based on category and title
Changed datatypes to date to make returns easier.
Merge pull request #15 from ellina-s/arjan

Arjan
Added checks for item quantity
Merge branch 'master' of https://github.com/ellina-s/cs304 into ellina
Minor comments changes
Merge pull request #16 from ellina-s/ellina

Ellina
changed to using arrayLists added sub transactions