[Released][Asset]NextGear inventory system

[Slyfox]

Based on the NGUI example, I improved it to be easy to integrate in your game and much improved upon the original.

This asset includes a lot of features that I see are missing in the others inventories on the asset store.
So check it out : http://forum.unity3d.com/threads/released-nextgear-inventory-system-dual-wielding-and-special-item-effects-are-now-possible.266771/#post-1762953