update 26 and tagValue

[simoncn]

(30-04-2014 09:16)simoncn Wrote:  indexTags should be set to Artist instead of ArtistSort

AlbumArtist should be included in either indexTags or itemTags

ArtistSort should be included in itemTags

tagValue should be set to: Artist.value.sort={ArtistSort}, AlbumArtist.value.sort={ArtistSort}

I've added a new section to the User guide explaining how to set this up.