Add qsub support for env vars with quotes
sched/backfill - Avoid redundant error messages
PBS Pro support, fix select option parsing

in qsub wrapper and #PBS options in sbatch scripts
Add job_submit/pbs plugin to translate PBS job dependency options

No support for PBS "before" options
job_submit/pbs: preserve native Slurm dependencies

Also log discarded PBS options
job_submit/pbs: add more debugging
Fix qsub/sbatch support for PBS dependency
Correct SallocDefaultCommand example

Add missing close quote
qsub -I, don't require any options
OpenMPI - Note needed configuration to use reserved ports
job_submit/pbs - Add some env var support

Set PBS_ACCOUNT, PBS_ENVIRONMENT, and PBS_QUEUE only for batch
jobs and only if the user submission sets the account and partition.
Move job_submit/pbs plugin into torque RPM
Add spank PBS plugin to set a bunch of env vars
Backported sh5util from master to 2.6 as there are some important
bugfixes and the new item extraction feature.
job_submit/pbs - extend dependency support

Add support for "on" and "before*" options
job_submit/pbs - don't set PBS_ENVIRONMENT

Doing so causes confusion for Intel MPI
Merge branch 'slurm-2.6'

Conflicts:
	configure
	doc/man/man1/sh5util.1