Removed Chanceboxes completely, they were a dumb idea. Various itty bitty adjustments.
Further adjustments to parry mechanics. Adjustments to how health/armor is auto-used. Now auto-used whenever possible rather than when armor/health is about to drop to zero. Another pass of PNG optimization.
Added some other basic stuff. Adjusted golden shell textures so they look better with the gold matcap. Added spent versions of shell casing textures.
