[gnome-music] (12 commits) Non-fast-forward update to branch wip/mschraal/tageditor-13feb2020

[Marinus Schraal <mschraal src gnome org>]

The branch 'wip/mschraal/tageditor-13feb2020' 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:

  daa8bfb... grilowrappers: Introduce support for chromaprint source
  c721c99... grilowrappers: Introduce support for acoustid source
  9df569d... coresong: Add support to query musicbrainz tags
  92a7652... coregrilo: Handle a list of keys for writeback
  fd344fc... coregrilo: Add a callback function to writeback
  8448e62... trackerwrapper: Add logic to update a tracker resource
  e3cbae1... coresong: Add logic to update a tracker resource
  14495d2... notificationspopup: Add support for tag notification
  190f1ba... songeditordialog: Initial songs support
  2d48043... selectiontoolbar: Add support to launch song editor dialog
  7a599af... songsview: Add renderer for title and artist
  6f732fe... flatpak: Switch to a grilo-plugins branch with required cha

Commits added to the branch:

  2adb12f... grilowrappers: Introduce support for chromaprint source
  4e363e7... grilowrappers: Introduce support for acoustid source
  5aab3fb... coresong: Add support to query musicbrainz tags
  9fe8f3f... coregrilo: Handle a list of keys for writeback
  d595bfd... coregrilo: Add a callback function to writeback
  e379e9e... trackerwrapper: Add logic to update a tracker resource
  e2dec49... coresong: Add logic to update a tracker resource
  b69fb11... notificationspopup: Add support for tag notification
  6982c60... songeditordialog: Initial songs support
  da08ba3... selectiontoolbar: Add support to launch song editor dialog
  f3b63b5... songsview: Add renderer for title and artist
  fcf6cf5... flatpak: Switch to a grilo-plugins branch with required cha