suzerain: #2998 load/process bug shakeout

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44719 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #2998 plot-related fixes

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44720 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #2998 fix processing

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44721 0bd85f0b-c151-43b9-a1e9-27231104551f