fixes exploit where detonating a bomb inside a disposal pipe will not harm the holder

Signed-off-by: Cael_Aislinn <cael_aislinn@yahoo.com.au>
nuclear bombs can no longer be interacted with by AIs

Signed-off-by: Cael_Aislinn <cael_aislinn@yahoo.com.au>
remove the cover from the turret. this qdels the turret.

Signed-off-by: Cael_Aislinn <cael_aislinn@yahoo.com.au>
humans swapping position via bumping with help intent now calls Crossed()

Signed-off-by: Cael_Aislinn <cael_aislinn@yahoo.com.au>
fixes an issue where wormholes would sometimes teleport to other zlevels, sped up teleporting by using range() instead of circlerangeturfs(), makes teleporting only pick turfs from the same zlevel as the target

Signed-off-by: Cael_Aislinn <cael_aislinn@yahoo.com.au>
Merge pull request #4020 from caelaislinn/bugfix

Various bugfixes
Merge branch 'master' into ItemNameFixing07-2014