Added new sell mode: ItemFormat, instead of require item must 100% equal than selled item, if 2 item's Item Format is same, we will also consider the item can be selled. You can consider it as: fuzzy matching.
Added new command: /shop generateitemformat, will parse hold item into UltimateShop's ItemFormat, if you don't know how to write Item Format, this will very useful for you.
Fixed /shop saveitem command does not working well since 2.1.0.