[gnome-music] (9 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:

  25813f2... playlists: Introduce a ready property
  44cd746... playlistsview: Move playlists instantiation in the class
  a65bb15... playlistsview: Use the playlists managed by Playlists
  6a3c876... playlists: Remove is_smart_playlist method
  cbb496d... mpris: Use the playlists managed by Playlists
  00e687a... grilo: Remove unused function populate_playlists
  b68b8a4... playlists: Remove unused signals
  26bb6e6... playlists: reorder imports
  b3ff5ea... playlists: Update copyright header

Commits added to the branch:

  a14f959... playlists: Introduce a ready property
  07215f7... playlistsview: Move playlists instantiation in the class
  ed64f8d... playlistsview: Use the playlists managed by Playlists
  9f75ef1... playlists: Remove is_smart_playlist method
  a8bfa57... mpris: Use the playlists managed by Playlists
  16b8188... grilo: Remove unused function populate_playlists
  36d2b56... playlists: Remove unused signals
  dadcfff... playlists: reorder imports
  87bbbdd... playlists: Update copyright header