Alpha 11 dev-2513

Bug Fixes

 * Fixed crashing bugs when placing free-standing walls.
 * Fixed windows not being placed on buildings.
 * Fixed bug that caused hearthlings to walk to the wrong location when picking up items from stockpiles.
 * Fixed bug that prevented using ladders to reach mining zones on cliffs.
 * Fixed hearthlings floating in air after hanging an item on a wall.
 * Fixed engine error when a hearthling cannot reach an item to pick it up.
 * Fixed engine error when undeploying hanging items.
 * Fixed engine error when goblins try to pick up items higher than foot level.
 * Fixed assertion error when rotating items.
 * Fixed hearthling activity descriptions missing on citizens window.

Other Changes

 * Allow free-standing walls to be built on top of other structures.
 * Added more items for purchase with the trader.
 * Goblins no longer have backpacks.
 * Goblins go away if you appease them multiple times.
 * Goblins leave after raiding you enough times that they become bored.
 * If goblins leave before they are defeated, they will eventually return.
 * Bleating sheep.
 * Added more logging to detect corrupt installations.
 * You can now insta-mine from the console via the “im” command