Missing Nickle2 zero points for Stahl19 release #60
Description
The Stahl19 data release is missing zero points for the four loss_stahl19_<BVRI>_nickel2 bandpasses. Zero points for the other bandpasses were taken from Ganeshalingam et al. 2013, but the publication predates Nickle2 and only has values for Nickle1.