version 1.4.0 :
 Add a new block model type: Stair.
 Add a new block state type: Stair.
 Fix bug that mapping between block state and meta is not updated when block state is modified.
version 1.3.0 :
 Move block models to the dir "normal/".
 Add a new block model type: Slab.
 Add a new block state type: Slab.
 Add block model rotation.
 Fix bug that Cage model is rendered in reverse.
version 1.2.1 :
 Fix bug that name is overwritten with id.
 Fix bug that the server crashes if no chunks are loaded.
version 1.2.0 :
 Add BlockState Type.(You can now rotate a block!)
version 1.1.0 :
 Add a new block model type: Cage.
 Add a new block render-type: Cage.
version 1.0.0 :
 First release.