Skill menu and looter fixes
- Fixed a bug that stopped characters server-sided and caused position lag when closing a skill menu (bugreport:9117)
- Fixed behavior of looter monsters (#125=fixed)
  * They will now always target the oldest item in their view range (which makes it seemingly random), rather than always the most south-western item available
  * Their loot range is now "0" meaning they need to be on the same cell as the item to loot it
  * Their AI will no longer get stuck in an endless loop when someone drops an item around the corner