Pocket Edition v0.12.1 alpha build 5

Alpha 0.12.1 build 5 is the fifth build released for Alpha 0.12.1.

Changes

 * Controls are smoother and more responsive.

Fixes
10 bugs fixed From the 0.12.1 development versions From the previous development version
 * Clients cannot set a different difficulty than the server anymore
 * Snow layers can be replaced with any block now
 * Can now place doors on top slabs
 * - Swap Jump and Sneak Bug
 * - Wolfs turn black or bounce while walking on soul sand
 * - Sign bug
 * - Swap Jump and sneak was not saved
 * - Unable to fly in creative mode
 * - MCPE 0.12.1 build 4 you can't mine with picaxe so you can't get stone so its not playable fix plz
 * - Cant Dig Items In Survival Mode