Small bug fix update for the demo.
V 0.6.3
Objects:
Lowered tombstone hit points from 8 -> 6
Other:
Fixed a bug where some entities could be removed from the camera when they shouldnt be
Fixed a bug where reassigning the interact button and then interacting with an empty inventory slot would crash the game
Fixed a bug where shift clicking an item into a container would not sync its contents with the server properly