* Fixed the line tool arrowhead settings affecting the freeform shape tool's drawing
* Fixed several miscellaneous crashes
* Fixed Image->Resize not working and/or crashing, if width or height were set to 1
* Fixed the Rectangle shape and selection tools "drifting" the shift key was held to constrain to a square
* Fixed incorrect window repainting in Windows XP, and in Vista/Win7 when Aero/DWM is turned off
