LoS the conclusion

So I enabled the tile hiding for unexplored zones, made a few more modifications (buildings and such were changed to bright red, so the out of sight areas being gray was a bit more noticeable)

At this point, I need to add Z-axis navigation (stairs, where it asks you to ascend, ramps where it automatically does so) but I'll come back to that.  For now, I'm going over to the separate test-bed program for level generation, to finish out the initial generation of all the terrain boards.  Once we have some levels that are more organically 3D, I'll finish up the last of the navigation.