addded option for number of instances of an app to run to the stage command
addded option for number of instances of an app to run to the stage command

shannonmpoole/fh-fhc,paolobueno/fh-fhc,grdryn/fh-fhc,nialldonnellyfh/fh-fhc,wei-lee/fh-fhc,david-martin/fh-fhc