Cosmetic removal of references to variance in CreateUncertaintyImage.py, FluxCalibrate.py, and MakeCube.py and some
minor code tidying. Looked through all references to 'uncertainty' in kcwidrp/primitives and attempted to make the use
of stddev for uncertainty unambiguous.
Cosmetic removal of references to variance in CreateUncertaintyImage.py, FluxCalibrate.py, and MakeCube.py and some minor code tidying. Looked through all references to 'uncertainty' in kcwidrp/primitives and attempted to make the use of stddev for uncertainty unambiguous.