Beta 792 artist art, lockscreen and queue bugs

[Drugoli]

After choosing "Auto download artist art" there's no way to revert back to using album art after Poweramp has downloaded images. The only current way is manually downloading an album cover and setting it individually for each artist.

If you as a song to the queue while it is playing the last song, it will look as if the new song is playing (album art and only visible song in the queue), but audio will continue as normal. Whoever, when the song finishes the queue is exited and the new song is not played.

Likewise, when exiting the queue (after having played some other list, it now returns to the last played song, instead of the next one in that list. This means the same song is played twice; once before the queue and once after.

The album art is not always displayed on the lockscreen. Can't figure out a way to trigger it.