Add SLURM_JOB_GPUS environment variable to those available in Prolog.
Also add list of environment variables available in the various
prologs and epilogs on the web page.
bug 1458

runjob happened, and the step was part of an array.  This is an addition to
commit 49e0f5f2

in the runjob_mux plugin.

Bug 1461
Commit: 2e2d924e

See bug 1461

If call was made to change a node's state to the same state it
was already in and set its reason to the same value it already
had, then an accounting record was generated. If a script, say
NodeHealthCheck is repeatedly setting a node state (say DRAIN),
it could generate a huge number of redundant accounting records.
This eliminates these redundant records.
related to bug 1437

Bug 1446

don't insert a new row in the event table.

uid's are 0 when associations are loaded.

The backfill scheduler build a queue of eligible job/partition
information and then proceeds to determine when and where those
jobs will start. The backfill scheduler can be configured to
periodically release locks in order to let other operations
take place. If the partition(s) associated with one of those
jobs changes during one of those periods, the job will still
be considered for scheduling in the old partition until the
backfill scheduler starts over with a new job/partition list.
This change to the backfill scheduler validates each job's
partition in from the list based upon current information
(considering any partition changes).
See bug 1436

If bitmap size is initially NO_VAL 0xfffffffe, then a tiny buffer
is allocated and accessing it can go off the end of the buffer.
This has not been observed in production, but only in the investigation
of another problem.

 Fix segfault in controller when deleting a user association of a user which had been previously removed from the system.

 Bug 1238

Fix slurmctld initialization problem which could cause requeue of the last
task in a job array to fail if executed prior to the slurmctld loading
the maximum size of a job array into a variable in the job_mgr.c module.

Fix slurmctld job recovery logic which could cause the last task in a job
array to be lost on restart.

Only supported with task/affinity plugin.

When CgroupMountpoint was not defined in cgroup.conf the mount point
got undefined. This resulted in cgroups not being released.

event  REQUEUED to slurmdbd.

Related to bug 1429

Improve "Prolog and Epilog Scripts" in slurm.conf(5)

The environment variable name SLURM_JOB_CLUSTER_NAME should be
SLURM_CLUSTER_NAME. This is also available in Prolog and Epilog, so
remove note about it only being available in PrologSlurmctld and
EpilogSlurmctld.

Previously it was not possible to distinguish between a job needing
exclusive nodes and the default job/partition configuration.

Fix job array logic that can cause slurmctld to abort.
bug 1426

Enable CUDA v7.0+ use with a Slurm configuration of TaskPlugin=task/cgroup
ConstrainDevices=yes (in cgroup.conf). With that configuration
CUDA_VISIBLE_DEVICES will start at 0 rather than the device number.
bug 1421

Move the functions that read cgroup.conf from src/slurmd/common
to slurmd/common so that the gres/gpu plugin can use it.

debug2 instead of info.

SLURM_JOB_PARTITION to be the one in which the job started.