[Review] Request from 'schubi2' @ 'yast/yast-autoinstallation/review_140813_overwriting_autoyast_file'

Please review the following changes:
  * 07694f6 packaging
  * c086ecd check overwriting autoyast configuration file

What about ...?

    return false unless Popup.ContinueCancel(_("File %s exists! Really overwrite?") % target_path)