Hey there,

In this update:
- fastinv is replaced by IF (inventory framework)
- /o inv all is removed, you can now just type /o inv to get sorted items
- empty files are no longer displayed in /o inv
- recipes showcase inventory is now using a glyph instead of an item
- recipes furnace builder is fixed (thanks DoctaEnkoda)
- A Null Pointer Exception with furnitures is fixed

I hope you'll like it!
Thomas