Update httplib2 version to 0.13.0 for python3
Update httplib2 version to 0.13.0 for python3

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