0.1.6 - More loot spawns

- Added more loot spawns to residential buildings. I intend to add more
as I go
- Picking up melee weapons will no longer delete your primary weapon.
- All car parts can be picked up now without problems. Same for
hatchets.
- Mass adjusted for sniper rifles.
- Added G36C and G36C SD.
- May have fixed odd visual bug with group menu. I plan on making my own
in 0.1.6.1.