Gittrac #3532:  Fixed syntax error in metrics output (trailing comma
on last item); temporary fixes to get condor_dagman_metrics_reporter
to run for testing; DAGMan now passes the output file name instead of
the DAG file name to condor_dagman_metrics_reporter (so we can
put the reporter's output file into the dagman.out file); added
copyright to condor_dagman_metrics_reporter.cpp.