lock.

adding/removing columns.

Prevent resetting a held job's priority when updating other job parameters.
Patch from Alejandro Lucero Palau, BSC.

Conflicts:
	doc/html/team.shtml

Patch from John Thiltges, University of Nebraska-Lincoln.

and smaller block when using sub block allocations

to boot.  This should happen very rarely.

starts in accounting.

Add an srun shepard process to cancel a job and/or step of the srun process
is killed abnormally (e.g. SIGKILL).