Fix ambigous policy output renaming

The mmpolicyapply list output file naming is not well documented.
Add job-specific subdir for global and scratch paths to isolate
expected files from a job.
Rename final tagged result and move it to the provided global
output dir and clean up the temporary dir after file completes.
Include potential for no output if there are zero matches.

run-mmpol.sh

@@ -7,8 +7,9 @@
 
 filesystem=${FILESYSTEM:-scratch}
 policyfile=$POLICYFILE
-tmpglobal=$DIR
-tmpscratch=$DIR
+tmpglobal=$DIR/slurm-tmp-${SLURM_JOBID}
+tmpscratch=$DIR/slurm-tmp-${SLURM_JOBID}
+mkdir -p $tmpglobal
 
 nodes=`scontrol show hostnames "${SLURM_JOB_NODELIST}" | tr '\n' ',' | sed -e 's/,$//'`
 cores="${SLURM_CPUS_PER_TASK}"
@@ -41,4 +42,8 @@ fi
 
 # tag output file with run metadata
 outfile=`ls -t $tmpglobal | head -1`
-mv -n $tmpglobal/$outfile $tmpglobal/${outfile}_$filetag
+if [[ "$outfile" != "" ]]
+then
+   mv -n $tmpglobal/$outfile $tmpglobal/../${outfile}_$filetag
+fi
+rmdir $tmpglobal