Update 1.8/build 13

The fourth Beta of Update 1.8. See changelog.

Fixes

 * Fixed several crashes that occurred during gameplay.
 * Fixed a crash that could happen when attempting to make a Marketplace purchase.
 * Fixed a bug where template text colours could interfere with other UI messages.
 * Fixed the bug that caused items to show the wrong texture after loading a new texture pack.
 * Fixed an instance where a world save could become corrupt and disappear from the world list.
 * Improved performance on some devices with less available memory.
 * Fixed tamed Cats having disconnected limbs whilst sitting.
 * Empty Monster Spawners no longer show fire particles.
 * Fixed a crash that occurred when exporting with the structure block.
 * Improved the marketplace search results when using filters.
 * Added missing undyed Shulker Box recipe.
 * Ocelots' legs no longer levitate when sneaking.
 * Sheep now move their heads correctly when looking at the player.
 * Pandas more quickly return to their normal behaviour after following a player holding bamboo.
 * Fixed some missing marketplace pack icons.
 * The Command to set scoreboard objectives names is now recognised.
 * Adjusted the climbing speed slightly so players no longer experience a flashing screen when climbing Scaffolding.
 * Fixed several related graphical issues that could occur when resuming the game.
 * Optimised marketplace images for certain devices.
 * Only players with Operator permissions can adjust now.
 * Fixed Witch texture in Elf Islands Heroes World pack.
 * Fixed the Husk model in Candyworld marketplace map.
 * Fixed the position of Bows held by mobs in the Papercraft Adventure marketplace map.
 * Replaced the missing Mooshroom legs in the Adventurer's Dreams marketplace map.
 * Fixed the geometry for Ocelots that have custom models.
 * Saddles are no longer invisible in the Adventurer's Dreams marketplace map.
 * Fixed the rotation of the Llama's legs in various marketplace maps.
 * Fixed the head size and position of the Banshee Nightmares in A Nightmare in Candyworld marketplace map.
 * Mobs now sit at the correct height when riding other mobs in the Stranded in Space marketplace map.
 * Fixed models in the CampCraft marketplace world template.
 * Evoker no longer has disjointed arms in the Jurassic Depths world.