load
fun ImageView.load( data: Any?, @DrawableRes placeholderResId: Int? = null, transformation: StreamImageLoader.ImageTransformation = ImageTransformation.None, onStart: () -> Unit = {}, onComplete: () -> Unit = {}): Disposable
fun ImageView.load( data: Any?, placeholderDrawable: Drawable?, transformation: StreamImageLoader.ImageTransformation = ImageTransformation.None, onStart: () -> Unit = {}, onComplete: () -> Unit = {}): Disposable