code: def add_location_timezone_to_device(self, device_obj, location, timezone):
          
          dictify_device_meta(device_obj)
          device_obj['info']['description']['meta']['location'] = location
          device_obj['info']['description']['meta']['Location'] = location
          device_obj['info']['description']['meta']['timezone'] = timezone
          device_obj['info']['description']['meta']['Timezone'] = timezone
          return self.update_device(device_obj)
docs: Returns 'device object' with updated location
              
              http://docs.exosite.com/portals/#update-device
              http://docs.exosite.com/portals/#device-object