savefits_residim does not work #212
Description
I set the savefits_residim option to True in process_image, but no such fits image is output. In the log file, this is not listed as a non-default input parameter (unlike savefits_rmsim, which is, and does produce an output image). I realize that I can use export_image to do this, but having the residual image generated automatically, in the appropriate subdirectory like the rms image, would be convenient!