[gnome-music] (28 commits) Non-fast-forward update to branch wip/jfelder/mpris-cleanup

[Jean Felder <jfelder src gnome org>]

The branch 'wip/jfelder/mpris-cleanup' 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:

  c17939a... mpris: Remove multiple space typo
  d9c598e... mpris: Reorder imports
  2c6d14d... mpris: Rename Server class to DBusInterface
  b9297ba... mpris: PEP8 fixes on the DBusInterface class
  9867db6... mpris: Fix codestyle on the DBusInterface class
  82653ab... mpris: Rename MediaPlayer2Service class to MPRIS
  86b3735... mpris: Fix xml description indentation
  c88188e... mpris: Make docstring quotation mark consistent
  32ab0ab... mpris: Add Playlists interface to xml description
  56dffdf... mpris: Add PropertiesChanged signal to xml description
  ce5eec5... mpris: Fix player connect calls line length
  e2d0712... mpris: Replace exceptions with logger messages
  f9b4b0f... mpris: Use song favourite status to describe userRating
  815633e... mpris: Cleanup _get_metadata method
  0882d5a... mpris: Make the trackid truly unique
  0059bea... player: Remove volume logic
  96bf67c... mpris: Change naming convention to snake_case
  7e42070... mpris: Move dbus connection logic to DBusInterface
  9c5f434... mpris: Handle signals emissions internally
  951ac71... mpris: Make app attribute internal
  111abf6... mpris: Make player attribute internal
  85775d8... mpris: Make player_toolbar attribute internal
  fbd9f8e... mpris: Update copyright information

Commits added to the branch:

  48d3769... mpris: Update CanGo{Next,Previous} properties on song chang (*)
  beafc0e... smoothscale: Workaround to update position on first run (*)
  b070035... mpris: Remove multiple space typo
  a61765a... mpris: Reorder imports
  d91f66d... mpris: Rename Server class to DBusInterface
  c7a2609... mpris: PEP-8 fixes on the DBusInterface class
  ae5a9b3... mpris: Fix codestyle on the DBusInterface class
  d193978... mpris: Rename MediaPlayer2Service class to MPRIS
  2d5e42f... mpris: Fix xml description indentation
  672a2ea... mpris: Make docstring quotation mark consistent
  a2d2118... mpris: Add Playlists interface to xml description
  ed6db03... mpris: Add PropertiesChanged signal to xml description
  b45f078... mpris: Replace exceptions with logger messages
  0306d81... mpris: Use song favourite status to describe userRating
  cd807e9... mpris: Cleanup _get_metadata method
  a6ea4ba... mpris: Make the trackid truly unique
  080e76d... player: Remove volume logic
  713f318... mpris: Do not send PlaybackStatus property if unchanged
  4168394... mpris: Change naming convention to snake_case
  183794b... mpris: Move dbus connection logic to DBusInterface
  ccb069c... mpris: Handle signals emissions internally
  f43f8c2... mpris: Make app attribute internal
  04dd5f7... mpris: Make player attribute internal
  9a9524d... mpris: Make player_toolbar attribute internal
  8422e15... mpris: Update copyright information
  dab5ccb... mpris: Fix some PEP-8 issues
  0483a93... CI: Remove mpris.py from flake8 ignored files
  69d813a... grilo playlist

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