clip2icns: removed some flickering when chaging the menu (I'm not changing it unnecessarely). Also added input checking for the ID.

did the towers of hanoi recusrsion exercise. I ended up making a class, ringStack, with a few functions like TakeTopPiece and AddPiece, and using the sample recursion algorithm.

icon mangler: I think I know how I'll implement the basic framework for the editor. I'll make a new class, icnsEditor, make it inherit the stuff from the icns class I've already done. When the user selects open or new icon, I can make a new instance of it, and keep them all together in a linked list.