prevent vehicle turrets from attacking their own car
Merge branch 'targeting-turrets' of https://github.com/BevapDin/Cataclysm-DDA into BevapDin-targeting-turrets
fix stupid mistake of tx!=ty
Merge branch 'targeting-turrets' of https://github.com/BevapDin/Cataclysm-DDA into BevapDin-targeting-turrets