Disturb running if the next tile on the right or on the left is new
Compare tiles, when running, based on behaviour (features)
Don't take into account rear tiles, when running
Redo run disturbance due to middle tiles and due to items
Fix rotation, taking into account our mirrored coordinates
Permit run direction change, but only in corridors
Permit run direction change anywhere, if unique
Relax terrain change conditions when run direction changed
Let travis check that the Hackage package does not miss any files