v0.677 Performance Patch

[Glitchless]

This latest patch will make the game feel a lot smoother. Previously image loading was causing slight (and for some people more than slight) delays that were locking up the rendering process and causing the game to feel jerky. Now all image loading is done in a seperate process so that the game is free to render without much impact at all to the framerate.

Certain interface images may take a few moments longer than you're used to to load but all in all this should be a welcome change, especially during combat when you don't want your framerate to drop just because you've drawn a new gem graphic.