Also fixes setting weight at cluster creation.

Don't store local cluster info in siblings. Store separately for
state_save and "scontrol show fed".

This is required in order to make sure that a compute node reboots as
requested; even if the slurmctld daemon restarts. Previously if the
slurmctld daemon restarted, we couldn't tell if the compute node
rebooted before or after the request.
This commit expands upon the work of commit 4517c454
by adding the reboot request time to the node record, which is
saved and restored by slurmctld.
bug 3042

Handle case when slurmctld daemon restart while compute node reboot in
    progress. Return node to service rather than setting DOWN.
bug 3042

Add salloc_wait_nodes option to the SchedulerParameters parameter in the
    slurm.conf file controlling when the salloc command returns in relation to
    when nodes are ready for use (i.e. booted).
bug 3043

bug 3055

bug 3054

before all was moved into a common location in common.c.

reservations.

sched/backfill - Check that a user's QOS is allowed to use a partition
    before trying to schedule resources on that partition for the job.
bug 3039

bug 3037

Conflicts:
	src/plugins/burst_buffer/common/burst_buffer_common.h

bug 3035 and 3009

This reverts commit 933d4fba.

Conflicts:
	src/plugins/select/cray/select_cray.c

Otherwise blade_cnt is potentially greater than
bit_size(jobinfo->blade_map) which leads to an assertion failure.

Bug 3033.

instead of 2+. Continuation of previous commit.