Load membership groups lazily (fixes #67)
Load membership groups lazily (fixes #67)

SysTheron/adhocracy,phihag/adhocracy,DanielNeugebauer/adhocracy,liqd/adhocracy,phihag/adhocracy,DanielNeugebauer/adhocracy,DanielNeugebauer/adhocracy,phihag/adhocracy,phihag/adhocracy,SysTheron/adhocracy,alkadis/vcv,phihag/adhocracy,liqd/adhocracy,SysTheron/adhocracy,DanielNeugebauer/adhocracy,liqd/adhocracy,alkadis/vcv,alkadis/vcv,alkadis/vcv,alkadis/vcv,DanielNeugebauer/adhocracy,liqd/adhocracy