Non-cubic nodes wreak havoc with falling items and stacks. The
general need for slabs can be worked around by increasing the
player's stepheight allowing traversal of normal terrain without
jumping. Unfortunately this will only work in 5.0+, which should
hopefully be released soon.
- Refactor player knowledge into player mod, to declutter API.
- Move player knowledge into mod storage so players don't need to
be connected to access. Old knowledge will be reset, but I
doubt there was very much of it to lose.
- Start gathering some basic stats.
- Main glaring omission is player moving and idle time.
