Added exit code 140

[jfy133]

This PR adds exit code 140 for retry, which for a variety of schedulers (in particular *grid engine related), corresponds to a walltime limit-kill.

e.g.
https://sites.google.com/a/case.edu/hpcc/jobs/slurm-command-overview/exit-code-status
https://users.gridengine.narkive.com/ZyRamWD7/gridengine-users-exit-status-140

Reported by Megan Michel at SHH/EVA/Harvard.

PR checklist

• This comment contains a description of changes (with reason).
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