The robot arm and assembly line now scale when you resize the window.
Removed pixel inaccuracies that resulted from scaling.
The assembly line is now always at the bottom of the window.
The assembly line now automatically zooms out to accomodate a growing stack.
The assembly line now automatically zooms in to accommodate a shrinking stack.
The assembly line is now endless to the right.
The assembly line is now endless to the left.
You can now grab from a dynamically added empty stack.
You can now move far left and then far right without problem.