Correct obvious errors in param_actu_IPP.xml file.
Correct obvious errors in param_actu_IPP.xml file.

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