Fixed a couple of problems for NO_CONF_HASH too (bits were 0x12, changed
to 0x20, added documentation to slurm.conf man page, and add logging for
scontrol show config).

    problem.

  populate it with configuration information passed up from the slurmd
  at registration time.

     manage generic resources.

Added ability to view/modify a job's gres using scontrol.

    - Added node configuration parameter of Gres=.
    - Added ability to view/modify gres using scontrol and sview.

    -S <sort_list> specifications

Forward step failure reason back to slurmd before in some cases it would just be SLURM_FAILURE returned.

    addition to the currently accepted "minutes", "hours", etc.

    resizing.

    executed by the user to reset SLURM environment variables.