message: QuestionDialog pass hasCancelButton to DialogButtons
  otherwise E2E Q Dialog has OK and Cancel which makes 0 sense
  as its just an info dialog
diff: @@ -67,9 +67,10 @@ export default React.createClass({
  { this.props.description }
  </div>
  <DialogButtons primaryButton={this.props.button || _t('OK')}
  + primaryButtonClass={primaryButtonClass}
  cancelButton={this.props.cancelButton}
  + hasCancel={this.props.hasCancelButton}
  onPrimaryButtonClick={this.onOk}
  - primaryButtonClass={primaryButtonClass}
  focus={this.props.focus}
  onCancel={this.onCancel}
  >
  