Merge pull request #1 from FearsomeFoursome/master

update branch
updated GUI variable names, added code locations for buttons
no code updates yet
Added classes. Address done, Customer partially done, Order not started. Added treemap and testing code.
Customer and Address classes done; Order class not yet done
Updates to classes.
Demo customer treemap fully implemented and functional.
Create new customer tab fully functional other than cancel button and minor GUI issues.
Final commit for the day
New customer tab fully functional including error handling and user feedback
Customer treemap implemented
Merge pull request #2 from FearsomeFoursome/AR---working-branch

Merge working code to master