Need script to report status of non-job stages
If you're just going to run a script (i.e. declare a dataset, sum some histograms, etc.) and not launch a job, need to be able to report it to
POMS so it knows when its started and done. May be able to just be
"ifdh log" calls, or direct calls to bulk_update_job...
Should probably be in poms_client or some such.