changelog:
-redid the spawn area and the room beyond the upper door to be less narrow
-redid the back area to be more streamlined and harder to get stuck on
-removed shutter door as it was annoying, replaced it with small dropdown
-expanded the courtyards a little: made ramps less steep, added a new shack, generally is now a little wider
-redid lighting to be mostly light-spots instead of light entities
-skybox now more overcast
-added props for hopefully more dynamic arenas
-pushed the intel back a bit cause i was unhappy with where it sat
-added grass and a puddle of water near mid, tf2 players can now finally shower and touch grass