Removed the Database listeners to test of that was issue
DatabaseListeners are no longer being used (code still there), and Notifiers have replaced them
IterationTree view now refreshes when tabs change, or refresh button is pressed
Merge branch 'dev-set3-bugfix' of https://github.com/333fred/wpi-suite-tng into dev-set3-iteration3
Fixed Drag and Drop Issues involving being able to frop iterations into iterations and drop requirements into requirements