Pin future to new package
Pin future to new package

In some python installations, future seems to be required by LXML.
Version 0.14.1 has escaping issues, so we pin to a newer version.

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