Still tinkering with interiors
More stair types! WOOT!
Back to interiors... less woot...
Fixed a bug that made the strata builder infect basements with ores
Merge commit '3bed027f8caec2911440299f0a0309dbf4e72ae7'

Conflicts:
	src/me/daddychurchill/CityWorld/Plats/BuildingLot.java
	src/me/daddychurchill/CityWorld/Plats/FinishedBuildingLot.java