fix bug in resource.unit_of_quantity reference (shd have been the unit_of_quantity() method, not an attribute)
fix bug in resource.unit_of_quantity reference
(shd have been the unit_of_quantity() method, not an attribute)

thierrymarianne/valuenetwork,simontegg/valuenetwork,thierrymarianne/valuenetwork,django-rea/nrp,simontegg/valuenetwork,simontegg/valuenetwork,valnet/valuenetwork,valnet/valuenetwork,FreedomCoop/valuenetwork,simontegg/valuenetwork,FreedomCoop/valuenetwork,thierrymarianne/valuenetwork,django-rea/nrp,valnet/valuenetwork,django-rea/nrp,FreedomCoop/valuenetwork,FreedomCoop/valuenetwork,django-rea/nrp,valnet/valuenetwork,thierrymarianne/valuenetwork