Remove IMetaData interface.
The item meta should come from the IItemStack interface, not IEnchantable.
Convert the item meta into a RunsafeItemMeta and return it.
Item meta objects are wrappers, implement accordingly.
Enable the setItemMeta method and fixed it.
Disable Item#get(IItemStack) for now.
This method is no longer an override.
Corrected FireworkBuilder#Create() method.
Corrected FireworkBuilder#Give() method.