updated snana sources with IAU names  and downcased the whalen source names in the registry loader
updated snana sources with IAU names
 and downcased the whalen source names in the registry loader

dannygoldstein/sncosmo,kbarbary/sncosmo,kbarbary/sncosmo,dannygoldstein/sncosmo,kbarbary/sncosmo,sncosmo/sncosmo,dannygoldstein/sncosmo,sncosmo/sncosmo,sncosmo/sncosmo