fix bugs in transfer.give_event and receive_event
fix bugs in transfer.give_event and receive_event

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