Mobs Ghost Redo

Adds ghosts.

Mobs and NPCs

Ghosts will spawn during nighttime.

Advanced options: Settings -> All Settings -> Mods -> mobs_ghost_redo

According to ancient Romans' folklore they can't be hurt, save using metal weapons.
According to popular folklore, silver weapons will be more effective against them.

This mob has been ported from the Creatures MOB-Engine.