add latest_mapcap check to named_map update
add latest_mapcap check to named_map update

splashblot/dronedb,splashblot/dronedb,splashblot/dronedb,CartoDB/cartodb,splashblot/dronedb,CartoDB/cartodb,CartoDB/cartodb,CartoDB/cartodb,splashblot/dronedb,CartoDB/cartodb