[slurm-dev] allow --ignore-pbs to take effect when read as an #SBATCH argument

[Aaron Knister]

Hi Folks,

$subj says it all. I've created a patch, pull requests for master, 14.11
and 14.03 and opened an issue on github:
https://github.com/SchedMD/slurm/issues/98.

Any feedback is much appreciated!

Thanks,
Aaron