Pocket Edition v0.13.0 alpha build 3

Alpha 0.13.0 build 3 is the third build version released for Alpha 0.13.0.

Changes

 * Boats now stack
 * Beetroot soup now stacks
 * Improved curved rail and redstone behaviour
 * Improved slime spawning
 * Redstone ticks are more frequent

Fixes
11 bugs fixed
 * Fixed a crash when covering a XOR Gate
 * Fixed mushroom stew applying poison
 * Smelting progress bar resets correctly
 * Fixed clay generating in place of gravel
 * Fixed stone slab side texture
 * Fixed mobs staying aggressive towards the player when switching to Creative
 * Fixed colours not functioning in the chat
 * Fixed disappearing parts of iron golems, villagers, endermen and wolves
 * Fixed noteblocks not being powered
 * Boats no longer cause holes when rendering behind waterfalls
 * Fixed missed faces in water rendering