Update orchestrator.conf.json.sample
Update orchestrator.conf.json.sample

Remove trailing , at the end so JSON file will be valid.
enisoc/orchestrator,orkestrov/orchestrator,BrianIp/orchestrator,grierj/orchestrator,BrianIp/orchestrator,grierj/orchestrator,schatt/orchestrator,BrianIp/orchestrator,grierj/orchestrator,pcharlan/orchestrator,schatt/orchestrator,PressLabs/orchestrator,rlowe/orchestrator,enisoc/orchestrator,github/orchestrator,rlowe/orchestrator,enisoc/orchestrator,orkestrov/orchestrator,github/orchestrator,schatt/orchestrator,pcharlan/orchestrator,enisoc/orchestrator,pcharlan/orchestrator,orkestrov/orchestrator,PressLabs/orchestrator,PressLabs/orchestrator,PressLabs/orchestrator,github/orchestrator,orkestrov/orchestrator,rlowe/orchestrator,pcharlan/orchestrator,github/orchestrator