message: frontend: Fix React warning caused by missing key attribute
  Also remove unnecessary export.
diff: @@ -47,7 +47,7 @@ class ConfigureOperatorModal extends PromiseComponent {
  {this.props.radios.map((radio) => {
  const checked = radio.value === this.state.value;
  - return <RadioInput onChange={this._change} checked={checked} {...radio} />;
  + return <RadioInput key={radio.value} onChange={this._change} checked={checked} {...radio} />;
  })}
  </ModalBody>
  <ModalSubmitFooter
  @@ -66,7 +66,7 @@ ConfigureOperatorModal.propTypes = {
  valueType: React.PropTypes.string
  };
  -export const configureOperatorModal = createModalLauncher(ConfigureOperatorModal);
  +const configureOperatorModal = createModalLauncher(ConfigureOperatorModal);
  export const configureOperatorChannelModal = (props) => {
  return configureOperatorModal(_.defaults({}, {
  