[gnome-music] (22 commits) Non-fast-forward update to branch wip/jfelder/playback-status-v4

[Jean Felder <jfelder src gnome org>]

The branch 'wip/jfelder/playback-status-v4' 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:

  c38995c... coremodel: Add a recent playlist model
  29a099d... artistalbumswidget: Store coreartist instead of artist name
  33adb72... application: Create a search property
  307e124... coremodel: Add an active_media property to create a player 
  fc1c21a... coremodel: Replace active_playlist property with active_med
  52dd99c... albumwidget: Define different display modes
  0e72b2b... repeatbox: Introduce RepeatBox widget
  8b2a49f... songwidget: Factor out songwidget state
  3ab874f... songwidget: Introduce TwoLineWidget
  dee1e6e... linearplaybackwidget: Introduce LinearPlaybackWidget
  fef90ee... playbackpopover: Introduce PlaybackPopover
  1099363... playertoolbar: Add playback button

Commits added to the branch:

  e191f98... pauseonsuspend: Fix calls to MusicLogger.warning() (*)
  7c95224... player: Add some debug messages (*)
  703692e... gstplayer: Switch to an asynchronous state property (*)
  514f8ba... artistsview: Remove unneeded Gtk.Frame (*)
  5cb3126... window: Prevent creating new views if already loaded (*)
  e7a37b4... coredisc: Add callback error check (*)
  c2b5a1c... grltrackerwrapper: Remove unneeded arguments (*)
  29c5bd1... songwidget: Define song_number property (*)
  f195268... songwidget: Bind coresong properties (*)
  929e6ba... Update Kazakh translation (*)
  dbb7599... coremodel: Add a recent playlist model
  2c11e03... artistalbumswidget: Store coreartist instead of artist name
  44c5481... application: Create a search property
  6675eab... coremodel: Add an active_media property to create a player 
  76da456... coremodel: Replace active_playlist property with active_med
  1e41c6c... albumwidget: Define different display modes
  9913234... repeatbox: Introduce RepeatBox widget
  e3bcd2f... songwidget: Factor out songwidget state
  080aa22... songwidget: Introduce TwoLineWidget
  80515d3... linearplaybackwidget: Introduce LinearPlaybackWidget
  d24e577... playbackpopover: Introduce PlaybackPopover
  7af838f... playertoolbar: Add playback button

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