Added Refresher model
Added scrolling functionality to tree view
added functionality to retrieve a list of iterations from ANYWHERE.
Tree Displays Iterations
Autofresh actually refreshes! Only tested for requirements. Consider removing refresh button for demo...
Merge remote-tracking branch 'origin/team1-auto-refresh' into team1-iterations-requirements
Allow anyone to get a list of iterations, for real this time.
Also have auto-update working for both iterations and requirements.
The tree displays iterations by their iteration number, and also updates correctly
Got the dates to be correct updating wise
also edited the gui for iteration too look more like Requirement
made Iteration work in GUI. added simple backlog.
Added a cancel button to the Iteration Panel
made the text fields for dates uneditable by replacing with Jlabel
added a cancel and a delete button to the requirements
delete button will only show up in edit mode
Merge remote-tracking branch 'origin/team1-auto-refresh' into team1-dev
Merge remote-tracking branch 'origin/team1-iterations-requirements' into team1-dev

Conflicts:
	RequirementsManager/src/edu/wpi/cs/wpisuitetng/modules/RequirementsManager/requirements/RequirementPanel.java