Renamed TileEntityRendererChestHelper -> TileEntityItemStackRenderer
  This class is used to render any tile entities in a non-location specific major
  Such as EntityItems, In minecarts, Held by entities, anyhting that isn't in world.

Switched the class names for BiomeGenForest $1 and $2 as Fernflower decompiled
  them in oposite order.
Take control over Item.BLOCK_TO_ITEM map and register Block's to this map from GameRegistry.