1.2.6 (Spigot)

• Added full Happy Ghast compatibility.
  • You can now attach harnesses and boats without picking the mob up.
• Added new config option blacklisted_items_in_hand to prevent
  picking up mobs when holding specific items.
  • Use the ?all tag to blacklist all items. This will make it so players
    can only pick up mobs with an empty hand.
• Added new config option enable_dispensers that controls whether dispensers can dispense mobs.
• Overhauled dispenser logic.
  • Dispensers now dispense mobs on all versions.
  • Fixed: Mob item was not being removed after being dispensed.
  • Fixed: Mob only gets dispensed if a player/mob is in front of the dispenser.