Fixed small bug, that items could not be placed on inside walls with a simple rightclick
Fixed a small bug with the teleport direction.

Each offset for the teleport direction is pretty descriptive for which
direction it represents, but it lead to the player being teleported one
block above the desired location.
Added 4 more possibilities for the TeleportDirection. (also made sure that UP is the first one to check.)
Made it possible to set the spawn point to the walls and ceiling.