was seg faulting previously

so that we can use accounting_storage/filetxt

have AccountingStorage enabled to avoid a segv with bad accounting 
data pointer in the step

Minimally tested.

task launch failures (useful for security test3.1)

    it's time limit.

 (none of these changes were applicable to slurm v1.3, so this is just 
 informational to prevent attemptes to perform a merge).