Slavic Apocalypse Update Alpha 0.5.0

Fixed:
- Fixed collision error with pipes on small building
- Adjusted spawn rates of items
- Fixed culling error of Police Station Walls
- Fixed damage being dealt in spawn or plane by other players

Added:
- Added full zombie spawns to map
- Added full buy system on death (Money gained by killing players, zombies, and finding new money item)
- Added new starting spawn/buy area
- Added new signs outside of all stores/police station/clinic to help players better find/remember locations
- Added new items to all spawn levels (Util, Lvl1, Lvl2 and Lvl3)
- Added new nav mesh for AI
- Added new forested area in between city and small town
- Added trees to small town
- Added specific spawns for each shop (General Store, Gun Store, Ammo Store and clinic)
- Added new Plane Path to allow for better choice of drop
- Adjusted plane speed