Fix issue with %around_target_COORD% placeholders for the MOB_AROUND command

Fix an issue with the condition "can be used only bu the owner". (this feature is now only for 1.14 and +)

Fix the command "/ei unowned" to remove the owner from an item

Improved the AutoOwner feature (to auto add owner to an item)

New player condition ifPlayerHasEffectEquals (the player must have the effect with the amplifier defined not less not more)