Finally got around to making it so you could cancel out of a close.
No longer get a popup saying you changed something and asking if you want to save when you A) have made no change or B) haven't even loaded a file
Fix for copy pasting polygons - PolyPoints weren't being cloned correctly.
Merge pull request #27 from TravisEvashkevich/master

Finally got around to making it so you could cancel out of a close.