[gnome-music] (9 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:

  f3a9585... coremodel: Add an active_media property to create a player 
  6b5fda6... coremodel: Replace active_playlist property with active_med
  27d1830... albumwidget: Define different display modes
  7e62c80... repeatbox: Introduce RepeatBox widget
  47bf270... songwidget: Factor out songwidget state
  db81057... songwidget: Introduce TwoLineWidget
  fa842a2... linearplaybackwidget: Introduce LinearPlaybackWidget
  2ba7db1... playbackpopover: Introduce PlaybackPopover
  4b6cfb4... playertoolbar: Add playback button

Commits added to the branch:

  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