[gnome-music] (18 commits) Non-fast-forward update to branch wip/mschraal/async-queue

[Marinus Schraal <mschraal src gnome org>]

The branch 'wip/mschraal/async-queue' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  3e85282... asyncqueue: Add generic AsyncQueue class
  f2e724d... artstack: Rework ArtCache use
  5b153a2... artcache: Use AsyncQueue for cache retrieval
  f6a4c28... grltrackwrapper: Use AsyncQueue for storing art
  502e270... artcache: Rename DefaultIcon.Type
  fd66433... artcache: Remove unneeded argument from DefaultIcon.get
  1641a6f... artcache: Move DefaultIcon out of artcache.py
  821bd16... artstack: Load default icon faster

Commits added to the branch:

  fa26be0... songwidgetmenu: Display the menu at bottom (*)
  8ca2522... discbox: Add support for a context menu (*)
  f45311c... searchview: Add support for a song context menu (*)
  57138fa... albumwidget: Do not include a ScrolledWindow (*)
  146dad3... albumwidget: Add a show_artist_label property (*)
  11fe917... albumwidget: Add an active_coreobject parameter (*)
  31bcf1d... artistalbumswidget: Use AlbumWidget instead of ArtistAlbumW (*)
  8ee335a... Remove ArtistAlbumWidget (*)
  cf728b2... artistalbumswidget: Ensure that album rows cannot get focus (*)
  94030d8... appdata: Update description (*)
  4fc245a... asyncqueue: Add generic AsyncQueue class
  5a7e17f... artstack: Rework ArtCache use
  eb21994... artcache: Use AsyncQueue for cache retrieval
  897c82d... grltrackwrapper: Use AsyncQueue for storing art
  3fceea0... artcache: Rename DefaultIcon.Type
  2507969... artcache: Remove unneeded argument from DefaultIcon.get
  3577881... artcache: Move DefaultIcon out of artcache.py
  ebd62a1... artstack: Load default icon faster

(*) This commit already existed in another branch; no separate mail sent