func (b *B2dUtils) DownloadISO(dir, file, isoURL string) error {
	log.Infof("Downloading %s from %s...", b.path(), isoURL)
	return b.download(dir, file, isoURL)
}
func (b *B2dUtils) DownloadISO(dir, file, isoURL string) error {
	log.Infof("Downloading %s from %s...", b.path(), isoURL)
	return b.download(dir, file, isoURL)
}
func ( b * B2dUtils ) DownloadISO ( dir , file , isoURL string ) error { log . Infof ( " " , b . path ( ) , isoURL ) return b . download ( dir , file , isoURL ) }
// DownloadISO downloads boot2docker ISO image for the given tag and save it at dest.
DownloadISO downloads boot2docker ISO image for the given tag and save it at dest .