Java Edition 13w18b

13w18b is the fifth snapshot for 1.6.1, and was released to fix some of the bugs and crashes in the 13w18a snapshot.

Fixes
5 bugs fixed
 * – Animations are not working.
 * – fps drop due to new texture system while looking at horses.
 * – Crash on world load.
 * – Texture pack descriptions do not load.
 * – Riding horses into obstacles crashes the game.