In columns, rename _default to default, _dtype to dtype & _func to function.
In columns, rename _default to default, _dtype to dtype & _func to function.

SophieIPP/openfisca-france,benjello/openfisca-france,sgmap/openfisca-france,adrienpacifico/openfisca-france,benjello/openfisca-france,antoinearnoud/openfisca-france,antoinearnoud/openfisca-france,SophieIPP/openfisca-france,sgmap/openfisca-france,adrienpacifico/openfisca-france