Add note to MaxNodesPerUser and multiple jobs running on the same node
counting as multiple nodes.
PerlAPI - fix renamed call from slurm_api_set_conf_file to
slurm_conf_reinit.
Fix for job gres deallocation

This probably only happens on native Cray systems due to the
deallocation delays related to node health check. In any case,
the symptom is error message of this sort "job # dealloc of node
... bad node_offset 0 count is 0". It then fails to deallocate
the nodes GRES back for use by other jobs.
bug 973
Merge branch 'slurm-14.03'

Conflicts:
	src/plugins/select/cons_res/select_cons_res.c