Fix unicode method in carriers model.
Fix unicode method in carriers model.

johngian/marketpulse,mozilla/marketpulse,johngian/marketpulse,mozilla/marketpulse,akatsoulas/marketpulse,johngian/marketpulse,akatsoulas/marketpulse,akatsoulas/marketpulse,johngian/marketpulse,akatsoulas/marketpulse,mozilla/marketpulse,mozilla/marketpulse