v0.8

Huge Update: 

Fixed some issues with the random sampling of directions in diffuse reflections.

Replaced the cursor so that you can continuously scroll the mouse. (To get your regular mouse back press Q. Not Escape)

Replaced sliders with Input Fields that are draggable. You can of course type as well.

Added the Create and Edit Menus for creating and editing Spheres and Materials.

This was actually quite difficult to implement and there are still some bugs.