changed bg music lower volume and fixed priority

bunch of updates, check main page

added S&D spawns and bomb location (on closest to beach) and went from 20 random DM spawns to 138

fixed ladders

4.21

overhauled underwater by adding geometry around both islands, fixed/added a couple ladder spots (to climb over small fences)

patched another hole

fixed a ladder

fixed hole in well to get under the map, and lowered bg music volume some

made the waves and water materials closer to source