Holy Staff

Added

• Holy light burns the undead: Blessed Ground, Holy Beam and Sanctuary hurt zombies, skeletons, phantoms, the Wither and other undead mobs (modded ones too) instead of healing them. The damage equals the heal the skill would give, ignores armor and shows as golden numbers flying out of the mob. Kills count as yours, so they drop experience.
• Holy Beam and Blessed Ground can be aimed at undead mobs: lock the beam onto a zombie to burn it down, or drop the circle right under a skeleton.
• Undead pets (a tamed skeleton horse) are still healed.
• New options: holyDamage turns holy damage off, holyDamageMultiplier makes it stronger or weaker.