1. (UNIX) A-Shell/PolyShell will now check if there are any A-Shell or PolyShell processes running before deleting the jobtbl.sys/qflock.sys files on exit. Previously these were erased whenever there were no jobs remaining. The extra check prevents the files from being prematurely erased due to mysterious circumstances corrupting the job count.
2. OPTIONS=NODELSYS prevents jobtbl.sys and qflock.sys files from being deleted when no jobs remain. (This might be useful in some very exotic circumstances.)
