of /tmp. #2169

Added #define JOB_SHARED_* varilables to slurm.h
Replaces some blocks of spaces with tabs
Remove test of MCS_Plugin from client where job is submitted as
  a means of determining if an --mcs-label option is supported.
  This will not work for jobs being submitted between systems,
  which will become common in slurm v16.05. The check will need
  to be performed in the (slurmctld) server.

There were some changes required to the un/pack logic due to
  patch not working correctly and/or the newer version of Slurm
  the patch was applied to.

Only a super user can change Slurm configuration.
Exit immediately if the test can not be run.

- add new configuration parameters MCSPlugin and MCSParameters
  (MCS logic can be disabled/enabled/enabled-on-demand)
- add mcs_label to jobs and nodes related structures
- add --mcs-label option to srun,salloc,sbatch as well
  as MCS information in the various Slurm commands
- initial none/user/group MCS plugins
- add squeue/sinfo optional filtering based on MCS labels

calls.

snowflake10 after snowflake8

This reverts commit 9ea3e728.

Disable srun --bcast option test if SlurmdUser != root as the
  operation/test  will not work otherwise.

This would have helped to identify the performance issue associated
with bug 2174

This reverts commit 9768e31f.

sacctmgr output used a suffix of "PU" for per user, but only
  accepted input with a suffix of "PerUser". The output all
  used a suffix of "PU". The code has been modified to accept
  both sufficies (e.g. MaxJobsPerUser=# or MaxJobsPU=#).

bug 2147

BurstBuffer/cray: Fix job record purging if cancelled from pending state.
The problem can occur when the a burst buffer record was created for
the job in the plugin data structure, but no burst buffers were actually
allocated for it.
bug 2165

BurstBuffer/cray: Enable clearing of burst buffer string on completed job
    as a means of recovering from a failure mode.
Format is "scontrol update jobid=### burstbuffer=".
partial resolution of bug 2165

Conflicts:
	src/slurmctld/proc_req.c
	src/slurmd/slurmd/req.c

This is a backup in the event that slurmstepd fails in such a
  fashion that nothing gets logged. Added to help diagnose
  bug 2028