first draft of get_related for site model
first draft of get_related for site model

drkitty/cyder,akeym/cyder,murrown/cyder,OSU-Net/cyder,zeeman/cyder,akeym/cyder,zeeman/cyder,akeym/cyder,drkitty/cyder,OSU-Net/cyder,akeym/cyder,murrown/cyder,drkitty/cyder,murrown/cyder,OSU-Net/cyder,OSU-Net/cyder,zeeman/cyder,murrown/cyder,zeeman/cyder,drkitty/cyder