6.4.5

1. Don't pass artist_id when clicking on album link in now-playing or queue.
2. Fix track order when appending a disc/group using album cover action.
3. Fix MAI info when called from artist, or album, scrolled list.
4. Add 'ytm' and 'spoton' to emblems and track sources code.
5. Fix double-encoding of non-ASCII titles in scrolled lists - thanks to stiefenm.