Make all test dates timezone aware
Make all test dates timezone aware

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