Added TIFF export. Like TGA, it is uncompressed rgba. You can choose between TGA/TIFF in the save dialog.
Increased maximum resolution to 4096x4096. Out of memory checks are now in place to prevent crashes. I do NOT recommend working at such resolution, it is too time/memory consuming. Just 1 node at 4096x4096 will need 256 MB of RAM so you do the math.
Optimization: eliminate memory use when saving image to disk.
Fix: mouse wheel functionality on Windows build is now working *COUGH*implemented*COUGH*