Add requeuehold command to information generated by scontrol's
help command
bug 642

Conflicts:
	META
	NEWS

Add support for job array options in the qsub command, in #PBS
options for sbatch scripts and set the appropriate environment
variables in the spank_pbs plugin (PBS_ARRAY_ID and PBS_ARRAY_INDEX).
Note that Torque uses the "-t" option and PBS Pro uses the "-J"
option.

This would break the scenario where you want 64 tasks on each node, but
only want a total of 96 tasks, since --ntasks-per-node is a maximum, this
should be allowed.

slurm.conf.  Rebooting daemons after adding nodes to the slurm.conf
is highly recommended.

use the old version of state storage

Add a job flag to indicate when the EpilogSlurmctld us running
and don't purge the job record until it completes. This lets
the EpilogSlurmctld requeue the job and otherwise manage it.
bugs 635 and 636

Change warnings about slurm.conf configuration problems only for
1) user root, who is in a position to do something about this OR
2) other users only if they use the "-vv" (very verbose option)
bug 639

bug 640

on any of the commands.

application environment the PMI2 library will connect the the PMI2
server (slurmstepd) instead of using the provided PMI_FD socket.