Cropping selects wrong region - suggested fixes included too

[joshdabosh]

As many other open issues have stated, the issue is that when you crop, sometimes it can show the wrong portion of the image. Through some testing I've concluded that it's because you're not resizing the image properly after each image window refresh.

An easy way to fix this is to resize the image window to the img.shape attributes (at least in Python). You could call the function that's triggered by -(key num 45) after each f (key num 102) or {space} (key num 115).

USERS - You can fix this easily just by hitting the "-" key every image, which resizes the window to the right dimensions.