Add commandline options --cpus-per-task, --job-name
I've added the commandline options --cpus-per-task and --job-name to match those used by sbatch/srun, since the lack of dashes in the existing options --jobname and --cpuspertask is inconsistent and causes confusion.
The old options are still available for backward compatibility, but should probably be given a deprecation warning and removed in the future.