Bumblefumble a5a

-Fixed Cubemaps
-Removed the small area by spawn with the small health and ammo
-Moved the small health and ammo to accomodate
-Fixed a critical error with the final checkpoint where the cart would explode prematurely, making it impossible for Blu to win

-Added and built cubemaps
-Changed the death pit cliffs into death water
-The payload cart now explodes on a platform instead of falling into the water