message: Add country prefix to country dd options
diff: @@ -112,7 +112,7 @@ export default class CountryDropdown extends React.Component {
  const options = displayedCountries.map((country) => {
  return <div key={country.iso2}>
  {this._flagImgForIso2(country.iso2)}
  - {country.name}
  + {country.name} <span>(+{country.prefix})</span>
  </div>;
  });
  