Updated CHANGES_NEXT_RELEASE for issue#1506
Updated CHANGES_NEXT_RELEASE for issue#1506

telefonicaid/fiware-cygnus,telefonicaid/fiware-cygnus,Fiware/data.Cygnus,Fiware/data.Cygnus,telefonicaid/fiware-cygnus,telefonicaid/fiware-cygnus,Fiware/data.Cygnus