unknownLayerMessage: A message that notifies that the given layer is unknown and lists out the known layers.
unknownLayerMessage: A message that notifies that the given layer is unknown and lists out the known layers.

moskvax/TileStache,mapzen/TileStache,mapzen/TileStache,moskvax/TileStache,mapzen/TileStache,moskvax/TileStache