add url quote and unquote with fixed unicode handling
add url quote and unquote with fixed unicode handling

see http://bugs.python.org/issue8136

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