add -n description to slurmd and slurmctld help message
fix support so that nice value of -2 is valid (-2 == NO_VAL).

    "scontrol update JobId=# NumNodes=#" or
    "scontrol update JobId=# NodeList=<names>". Subsequent job steps must
    explicitly specify an appropriate node count to work properly.

    daemon's nice value.

    See "man slurm.conf" for details about how these control when slurmctld
    updates its information of which users are in the groups allowed to use
    partitions.

 -- Add support for maximum node count in job step request.
 -- Fix bug in CPU count logic for job step allocation (used count of CPUS per
    node rather than CPUs allocated to the job).

Applied patch from David Egolf (David.Egolf@Bull.com) Added the ability to purge/archive accounting data on a day or hour basis, previously it was only available on a monthly basis.

Altered srun to set max_nodes to min_nodes if not set when doing an allocation to mimic that which salloc and sbatch do.  If running a step if the max isn't set it remains unset.

Fixed slurm_load_slurmd_status and slurm_pid2jobid to work correctly when multiple slurmds are in use.

    to restrict spawned task nice values to that of the slurmd daemon plus 1.
    This insures that the slurmd daemon always have a higher scheduling
    priority than spawned tasks.

    dependencies (e.g. job 12 dependent upon job 11 AND job 11 is dependent
    upon job 12). 

    verify the slurm.conf is the same as the one it is running.  If not an
    error message is displayed.  To silence this message add NO_CONF_HASH
    to DebugFlags in your slurm.conf.

    avoid underflow error messages when slurmctld restarts while jobs are
    in completing state.

    startup or reconfiguration if many partitions have AllowGroups configured.

    option of "Alternate" (alternate partition to use for jobs submitted to 
    partitions that are currently in a state of DRAIN or INACTIVE).

    packing approach (applies to configurations without topology/tree).

  (previously ignored).

    ignored in enforcing the maximum CPU limit.