add config to playlist_style value.

update menubar style and window for playlist_style param.
add expand mode to playlist.AlbumList for albumview.

fix bug: frame albumview and albumlist are mixed.
draw albums as true tile mode.
support cursor key in albumview.
fix bug: bottom background of albumview does not drawed.
fix bug: albumview window size is less than albumview items.
fix bug: menubar playlist style radio menu is grouped in playlist/library view.
translate menubar radiomenu songlist/songalbumlist.
Merge pull request #2 from meiraka/add-albumview

Add albumview