Fix adhocracy.customize_footer option
Fix adhocracy.customize_footer option

Make it actually do something instead of quasi always returning True.

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