Music plugin - Folder icons

[7ore]

We had it like that in the beginning of the development, but we thaught it looked "cluttered", when the album art was sporadicallt present. So we decided to look like the original GBPVR.

Noticed that the WebRadio have a list alternative just the way I would like it:
1. a small list without icons,
2. a wider list with icons and
3. the icon view. I would like to have #2 in the music plugin as well.

If there is no albumart, show nothing (just as in webradio).
Please put this in the feature request list.