Simple Elevator Blocks

This mod adds the elevator block. Pretty much the OpenBlock Elevators. Press shift while on one to warp down to the next elevator block, or spacebar to warp up. 

It can be crafted with redstone dust in the middle, white wool in a plus shape, and ender pearls in an X shape.

This is my first time trying to make a more lightweight mod, so any feedback would be appreciated :)