New and Improved Deforminator

Changes:
1.ROI selection is now built in to the main GUI function
2. Supports ROI adjustment
3. change image using arrow keys
4. Draggable Nodes for registration
5. Removed stray click problem
6. New center Node to translate the entire ROI
7. New progress bar and status message during Saves
8. Unsaved Changes warning added
9. More awesomeness I can’t remember

Currently known issues:
1. translating the ROI while in ROI edit mode does not actually move
the ROI. Translations need to be done in Node mode
2. Cannot currently change the default Node pattern (not broken, just
not yet implemented). Can still save additional patterns as necessary
3. Screen flicker after selecting initial ROI
4. Bad Image and Bad BreathHold text doesn’t display reliably, no clue
why