Bugfixes:
1) Fixed a couple issues that were causing console spam on some versions of spigot/paper.
Fixed Several Github Reported Issues:
#InventoryMoveItemEvent #68 -Fixed
#Excessive AIR protection #69 -Fixed
#NPE on player connect #67 -Fixed
#Permission Request BlockBadItemsFromCreativeTab #64
-Players with the illegalstack.admin will bypass this protection.
#Overstack permissions issue. #62
-Players with the illegalstack.removeitemsoftypebypass will bypass this protection.