Update mozdef-util version to support python3 install
Update mozdef-util version to support python3 install

mpurzynski/MozDef,jeffbryner/MozDef,mozilla/MozDef,jeffbryner/MozDef,jeffbryner/MozDef,mpurzynski/MozDef,mozilla/MozDef,mpurzynski/MozDef,mozilla/MozDef,jeffbryner/MozDef,mpurzynski/MozDef,mozilla/MozDef