allow user to pass multiple -e flags in test_cromwell.sh (#192)
allow user to pass multiple -e flags in test_cromwell.sh (#192)


broadinstitute/cromwell,broadinstitute/cromwell,ohsu-comp-bio/cromwell,broadinstitute/cromwell,broadinstitute/centaur,ohsu-comp-bio/cromwell,ohsu-comp-bio/cromwell,broadinstitute/cromwell,broadinstitute/cromwell