created dev branch, extending intro in progress.
Intro extended, need to convert ui to javafx.
UI converstion to javafx complete.
Merged crun and git_commit
Merge remote-tracking branch 'origin/master' into development

Conflicts:
	build.xml
Organized imports, added project specific formatter.
Fixed ant build runc target properties.
 test comming from ant
Created ant build git_tag target.
Task 2. Extending the POS System 1. (dropdown menu) done
Task 2; Extending the Shopping Cart done.
New library is now required: ControlsFX
Update README.md
improv - can submit purchase, tableview quantity is updated
Task 2  Paying done
Saving the order and order history done.
Warehouse: adding new products. done
fixed bug: scene not resizing after displaying out of stock warning msg.
Shopping cart, adding existing item increases quantity instead of creating new item.
MInor improvements.
Not enough stock warning msg fix.
Adding required libraries.