Merge pull request #473 from mvertens/feature/bug_fix

backed out changes to config_pes.xml that caused problems

Verified that the following command worked:
./create_newcase --case foo --compset N1850frc2 --res f19_tn14 --machine betzy --project nn2345k --pecount=128

Resolves:
#471
#474
#467
#464