Pocket Edition v0.13.0 alpha build 4

Alpha 0.13.0 build 4 is the fourth build version released for Alpha 0.13.0.

Additions

 * Skin Packs
 * Biome Settlers Pack 1 Skin Pack

Changes

 * Block lag significantly reduced
 * Updated the textures of all doors in the inventory
 * Ghasts and slimes now have a higher spawn rate
 * Tripwire outputs power when broken with anything other than shears

Fixes
5 bugs fixed


 * Localized the "New" button
 * Skeletons now burn during daytime
 * Fixed apples inflicting poison
 * Minecarts placed on a powered rail next to an opaque block will now move in the right direction
 * Fixed detector rails saving their ON/OFF state incorrectly