[Lara]

So when moving across the map, it should be able to set the mobs home from the center of one hex to the center of another hex, and then just periodically check, to see if they got hung up on anything.  If they did, move the mob to the next hex home center spot and direct them onward again by resetting their home. 

This should get them around anything on the map not marked as fort, castle or populated.

We might also want to have them try to teleport over rivers ...