Changed map name to a smaller name; should fix multiplayer servers missing map

- Changed map name to a smaller name to make it compatible for multiplayer servers.

Patch 1.1 for Zombiesurvival_seclusionwoods_lonesome

Fixed numerous floating trees
Fixed several texture bugs
Fixed lakes unable to swim to the bottom
Removed spawnpoints in militairy base
Fixed sewer water being solid
Changed lightings inside mansion
Fixed skybox texture on some sewer walls
Added water sounds in sewers