[gnome-music] (14 commits) Non-fast-forward update to branch wip/mschraal/gapless-v3

[Marinus Schraal <mschraal src gnome org>]

The branch 'wip/mschraal/gapless-v3' 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:

  4d0709e... grilo: Add idle_add to writeback
  6d809ce... Introduce gapless playback
  9e6f531... gstplayer: Reset tick on stream start
  6b9c6fd... player: Small optimization
  700943e... more optimization
  7fa7afe... more fixess
  ddc635f... trigger state change
  1a14fa7... fix duration

Commits added to the branch:

  75f3695... window: Fix keyboard shortcuts (*)
  fec49f4... mpris: Correctly handle position unit (*)
  c895525... player: Remove redundant state change (*)
  ec6b98c... player: Fix seek signal emission (*)
  81d21d4... player: Rename _player variable to _gst_player (*)
  ba00f09... player: Use GObject property syntax (*)
  aaece57... smoothscale: Use GObject property syntax for duration (*)
  edd1a59... grilo: Add idle_add to writeback
  dfbabf4... Introduce gapless playback
  a483daa... gstplayer: Reset tick on stream start
  c5e1387... player: Small optimization
  be12189... more fixess
  a5d2d6e... trigger state change
  1fd7170... fix duration

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