start of requeued jobs.

It is only used for Hadoop and that code is still not fully fleshed out

Expand from 8 to 16 bits for more than 256 sizes

sched/backfill - Fix anomaly that could result in jobs being scheduled out
of order.
bug 911

Without this a batch script could be bound to a single CPU rather
than the full job allocation. This is a revision to commit
399cb897
without which batch scripts has no binding to CPUs via hwloc

squeue and scontrol to report a job's "shared" value based upon partition
options rather than reporting "unknown" if job submission does not use
--exclusive or --shared option.
bug 939

nodes instead of whatever was first in the system.

exit code.

a fix to handle sacct under this new method.

signal to the batch script only.

process terminated by a signal.

error message and avoid to loop forever, give up after 120 seconds.

This reverts commit 53706b41.

Conflicts:

	NEWS

Report correct partition associated with a step if the job is submitted to
multiple partitions. Previously all of the partitions that the job could
run in would be reported for the step.

Add more detail to sched/backfill logging

If MinJobAge is configured too low, then job records can be purged
before these tests issue the job requeue test, resulting in their
failure

Without this, the record of gres allocated to steps will remain
allocated and not be available to job steps after being requeued.

sched/backfill - If job started with infinite time limit, set its end_time
one year in the future. Previous logic would based it upon INFINITE and
produce an overflow of the uint32_t time.