enforce job preemption GraceTime

Without this patch, jobs with an infinite time limit would have
their preemption GraceTime ignored.
Fix slurm.spec for SLES11 SP3

it turns out SLES 11 SP3 (at least) defines it with a newline, so
this will be a problem for anyone building RPMs on that OS.
Correct sinfo sort fields options

Correct sinfo --sort fields to match documentation: E => Reason,
H -> Reason Time (new), R -> Partition Name, u/U -> Reason user (new)
Merge branch 'slurm-2.6' into slurm-14.03

Conflicts:
	src/sinfo/sort.c
Fix sinfo -R to print each node once

Fix sinfo -R to print each down/drained node once, rather than once per
partition. This was broken in the sinfo change to process each partition's
information in a separate pthread.
Add init/fini fucnction defs to plugin web pages
Document default SelectTypeParameter value

Related to bug 795
Fix two memory leaks in jobacct_gather_cgroup.c