Update sunburnt to 0.6
Update sunburnt to 0.6

In context of #64: Update sunburnt from 0.5 to 0.6.

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