Pocket Edition v0.12.1 alpha build 2

Alpha 0.12.1 build 2 is the second build version released for Alpha 0.12.1.

Changes

 * Added tame button for ocelots
 * Breaking crops will now always drop seeds
 * Made the flight controls a little bit smaller

Fixes
15 bugs fixed
 * Fixed crash on opening controller screen
 * Fixed a crash happening after waiting a long time in snowy biomes
 * Fixed many multiplayer bugs
 * Sprinting doesn't stop if strafing left or right
 * Can now pull squids with fishing rods
 * Weather now resumes correctly after suspending the app
 * The portal effect now plays when stepping inside a portal
 * Snowballs don't change color anymore at random
 * Magma cubes correctly jump in multiplayer
 * Fixed being able to move the character while a menu screen is open
 * Fixed not being able to exit the Option screen with Back when switching to touch inputs
 * Grass picked up with Silk Touch is now correct
 * Can now place items in the second anvil slot
 * The snow golem now spawns wearing a pumpkin
 * - Chunks near to and of mushroom island biomes do not generate