suppress some debugging output. CHECKPOINT: FakePsfexDeterminer agrees with psfex
polypix regression test rampage begins here
vignet_resample -> my_resample
my_resample -> upsample, downsample
switch to hscpsf spatial model classes
clean up psf_clean()
transpose comp array
remove psf_build
move some fields into make_clean_chi2
fix some _nx -> _psf_nx bugs, minor cleanup
minor cleanup
more cleanup and rearrangement