Add numeric range checks to scontrol update options. Patch from Phil Eckert, LLNL.

to use srun instead of runjob.

Fix Lua link order

Patch from Yuri D'Ella

Note that if a job is requeued, it's submit time is changed and the record appears
as a duplicate job with a different submit time. Patch by Bill Brophy, Bull.

Put -llua* in LIBS rather than LDFLAGS to get correct link order.
Without this the configure test for Lua fails when using GCC 4.6,
the default compiler on recent Linux distributions like Ubuntu
11.10.

not specified.

new job_list variable already added.

sub block allocations.

when using the SLURM clients.

made