name of NULL rather than returning no information about the node so that
    node index information is still valid.

    --sockets-per-node, --cores-per-socket and --threads-per-core options.
    Remove --mincores, --minsockets, --minthreads options (map them to 
    minimum values of -sockets-per-node, --cores-per-socket and 
    --threads-per-core for now).

    preemptable and preempted jobs (both new and old format of commands are
    supported).

SLURM_IMMEDIATE_EXIT to SLURM_EXIT_IMMEDIATE

    to permit user control over exit codes so application exit codes can be
    distiguished from those generated by SLURM. SLURM_ERROR_EXIT specifies the
    exit code when a SLURM error occurs. SLURM_IMMEDIATE_EXIT specifies the 
    exit code when the --immediate option is specified and resources are not
    available. Any other non-zero exit code would be that of the application
    run by SLURM.

    of slurmctld rather than that of the command.

    within the job's memory allocation and enforce limits).

    gang scheduling module. Make identification of preemptable jobs an argument
    to the select_g_job_test function rather than calling preempt plugin from
    the select plugin. Make output of srun --test-only option include a list
    of preempted job IDs. 
    svn merge -r18780:18815 https://eris.llnl.gov/svn/slurm/branches/preempt.job.list

Fixed issue when max nodes wasn't specified and was later set by limit to not request that as the actual maximum.

    is replaced by NumProcs (number of processors requested or actually 
    allocated) and ReqNodes (number of nodes requested) is replaced by 
    NumNodes (number of nodes requested or actually allocated).

    message traffic unless DebugFlag=Wiki is configured.

    ESLURM_INVALID_NODE_COUNT to better reflect its meaning.

    and additional info

    maximun node counts of pending jobs (the operation was previously 
    restricted to user root)