Housing stuff, read extended

Housing permissions should be done (just have to add management for it
through the structure terminal).

I started working on the /movefurniture commands but it seems that null
was being passed to the target in the command script... I'll have to
look into that further.

I also started work on lots, I'll have to dig through baselines and
deltas to update the player's lot count.  Currently lot count is an
attachment to the player's creature object, but I should probably change
it to z variable in the player class.