Changed model's material settings.

・Updated for Unity 2017.4 LTS

・Change Crafting recipes. When crafting, you need less crafting levels than before.

Fixed GUID.

Item's ID were changed.
Small fish tank: 10610 from 30010
Large fish tank: 10611 from 30011

Remodeled fish tanks.
Now, mod data size become small than before.

Small fix to display mellee.