Made incremental enhancements to perlapi/libslurmdb

avoid duplicate gres plugin use
permit some inconsistency in GresPlugins between slurmd and slurmctld

ok, this added the rc support to slurm.  There is no way to set it up automatically right now, but a little popup will be added next time.

    -Added node configuration parameter of Gres=.
    -Added ability to view/modify a node's gres using scontrol, sinfo and sview.
    -Added salloc, sbatch and srun --gres option.
    -Added ability to view a job or job step's gres using scontrol, squeue and
     sview.
    -Added new configuration parameter GresPlugins to define plugins used to
     manage generic resources.
    -Added framework for gres plugins.
svn merge -r20080:20102 https://eris.llnl.gov/svn/slurm/branches/slurm-2.2.gres (NOT BRANCH 2.1)

     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.

uninitialized in this function

alter time to wait to send start messages to 5 seconds not 30.  When returning running jobs we now check to make su
re the state is running is some cases

    -S <sort_list> specifications