[gnome-music] (7 commits) Non-fast-forward update to branch wip/jfelder/playlists-core-rewrite-prep-work

[Jean Felder <jfelder src gnome org>]

The branch 'wip/jfelder/playlists-core-rewrite-prep-work' 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:

  b543959... playlistsview: Use the playlists managed by Playlists
  ea372d6... playlists: Remove is_smart_playlist method
  fd7c5b8... mpris: Use the playlists managed by Playlists
  8353079... grilo: Remove unused function populate_playlists
  74fbf7d... playlists: Remove unused signals
  e98f962... playlists: reorder imports
  24afebb... playlists: Update copyright header

Commits added to the branch:

  5413216... playlistsview: Use the playlists managed by Playlists
  2917a73... playlists: Remove is_smart_playlist method
  97e3a24... mpris: Use the playlists managed by Playlists
  78d1d2d... grilo: Remove unused function populate_playlists
  127e7ac... playlists: Remove unused signals
  eaf9621... playlists: reorder imports
  8184069... playlists: Update copyright header