Signed-off-by: Danny Auble <da@schedmd.com>

Needed for job arrays to confirm numbers at submit time before we
begin creating the job records

Conflicts:
	src/plugins/priority/multifactor2/priority_multifactor2.c

--enable-debug.

Without this change, an empty reservation is created

Add support for std_out, std_err, std_in and work_dir in the job_sumit/lua plugin

Conflicts:
	src/Makefile.am
	src/common/gres.c
	src/plugins/mpi/pmi2/spawn.c
	src/srun_cr/Makefile.am
	src/srun_cr/Makefile.in

Counts would previously go negative as jobs terminate and decrement from
a base value of zero

to EINTR when something wrong happened between the open call and
its return. By ensuring that Slurm retries on such errors, we can
better tolerate Network file systems errors at launch time.

job_submit/lua plugin: added the code to access and modify std_in, std_out, std_err and work_dir from the lua plugin.

(>5000) and using the SchedulerParameters option bf_max_job_user.

NEWS note for last few commits

an issue if you have lots of jobs that are ran by the same user.