creativetab.CreativeTabs -> item.ItemGroup

[kashike]

net/minecraft/creativetab/CreativeTabs net/minecraft/item/ItemGroup

[parlough]

Yes please.

[bs2609]

Re: Lex's comment about this on #514, vanilla does also use this for the recipe book now, so the "creative" part of the name is less appropriate.

[kashike]

• net/minecraft/creativetab/CreativeTabs → net/minecraft/item/ItemGroup