If BlockLauncher 1.6.10 is released before MCPE++ 0.2 is out, it will have wolfs, endermen, slime and other stuff. If not, it will have new ores, blocks, items, food, furniture... Do you think it's simple? and the actual mod have 370+ lines of code!
Added Enderman, Slime and Wither Skeleton;
Zombie Pigmen now drops Blaze Rod;
Added Ender Pearl, Eye of Ender, Blaze Rod, Blaze Powder and Wither Skull;
Added /summon command, but can only spawn 'enderman', 'slime' and 'wither';
Throw a Ender Pearl to teleport.