fixed notes so that editing a requirement still retains
the notes already in said requirement. Editing the notes
is still broken
Got Notes WORKING!!!!!

can add notes to both new and existing requirements

notes on existing requirements are automatically displayed correctly
Added double-click functionality for the treeview
Improved double clicking functionality for tree.
Merge remote-tracking branch 'origin/team1-addNotes' into team1-stable2

Conflicts:
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/RequirementsManager/entitymanager/RequirementStore.java
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/RequirementsManager/requirements/RequirementPanel.java
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/RequirementsManager/tree/TreeView.java
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/RequirementsManager/view/MainView.java