the 'salloc' command instead of 'srun' -- the inner 'srun'
commands seem to get stuck if the outer command is 'srun'.
In the same script, update the Slurm queue used on Corona to
'pbatch' -- this script path is not used yet -- updating just
for consistency.
- Use a single (per user) clone of the internal MFEM/autotests repo
- Use a single (per user) clone of the Github MFEM/data repo
- Properly set the location for the pipeline-common temporary directory,
BUILD_ROOT; add a cleanup step for BUILD_ROOT
- Various other small tweaks and additions