remove zero count groups in datagraph.js, see #563
remove zero count groups in datagraph.js, see #563
monarch-initiative/monarch-app,DoctorBud/monarch-app,monarch-initiative/monarch-app,monarch-initiative/monarch-app,DoctorBud/monarch-app,DoctorBud/monarch-app,DoctorBud/monarch-app,jmcmurry/monarch-app,kshefchek/monarch-app,jmcmurry/monarch-app,kshefchek/monarch-app,kshefchek/monarch-app,jmcmurry/monarch-app,jmcmurry/monarch-app,jmcmurry/monarch-app,kshefchek/monarch-app,monarch-initiative/monarch-app,monarch-initiative/monarch-app,kshefchek/monarch-app,DoctorBud/monarch-app