GUI View Expense

Started work on the GUI to view expenses.
General layout is in place. New button adds a pre-made expense to the
list. The GUI is not working with the Expense system yet. The edit and
delete buttons do nothing other than display a dialog box.
Added Delete functionality to expense view

Added delete selection functionality to expense view. Also added
application closes when gui closes.
Merge branch 'master' into GUI
Connected to Expense System

Tied the create new and delete actions of the GUI with the expense
system.
Moved constants.

Moved some poorly placed constants to be in the correct position.
renamed folder appropriately can got rid of training files
Made directories to match master branch
Started Expense Edit Panel
Merge branch 'GUI' of https://github.com/Lastiritas/Software-Engineering into GUI
Fixed string matching, had bugs before
tests for string match
Started work on Edit Panel
Label Management and creation windows, not fully functional (see notes
in GitHub)
Continued work on expense editing
Merge branch 'System' into GUI

Conflicts:
	PFS/src/system/ExpenseSystem.java
	PFS/src/systemtests/ExpenseSystemTest.java
Merge Fixes.
Removed unneeded import statements.
Merge branch 'master' into GUI
Merge branch 'master' into GUI
Continue tying together all the work.