runtimeWarnings are ignored in set1axis. Fixes pvlib tracker runtimeWarning issue.  Fixes #260
runtimeWarnings are ignored in set1axis. Fixes pvlib tracker runtimeWarning issue.  Fixes #260

NREL/bifacial_radiance,NREL/bifacial_radiance,NREL/bifacial_radiance,NREL/bifacial_radiance