landmines explode after layer death, wallhugger and pathfinding use a passability map instead of ray casting
Merge branch 'etzel/WallHuggerV2' into develop
Merged WallHugger V2
updated develop
Grenades still explode when the grenadier that spawned it is killed.
Merge pull request #173 from 4950/Michael/GrenadeDudFix

Grenades still explode when the grenadier that spawned it is killed.
Merge branch 'develop' into god