[Compiler] Code cleanup
[Client] Fixed rendering of upper level items
[Client] Improved update performance and avoided wrong warnings
[Client] Improved loading of avatar data
[Client] fixes #10390 show carry load messages in the chat box
[Client] fixes #10399 Fixed synchronization of item stack
[Client] Improved resetting of moves
[Client] Fixing crash when requesting the top item from a stack
[Client] Raising proper message in case loading graphic resources fails
[Client] Proper error message for avatar creation

A proper error message is raised in case creating a avatar fails for
any reason.
[Client] Implementation of tooltips for all items on a item stack
[Client] Locking look-at to item, not to tile
[Client] fixes #10393 Throwing items at other characters now works
[Client] Remember container location

containerId 0 = Backpack
containerId 1-9 = Depot
containerId > 9 = other containers