[gnome-music] (6 commits) Non-fast-forward update to branch wip/jfelder/smoothscale-player

[Jean Felder <jfelder src gnome org>]

The branch 'wip/jfelder/smoothscale-player' 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:

  a2cc4e2... player: Define state GObject property
  8382134... player: Define duration GObject property
  a546e0b... player: Use second unit to set position
  8d69042... smoothscale: Do not interact with GstPlayer
  6097494... smoothscale: Use GObject property syntax
  b8b5c19... gstplayer: Use GObject property syntax

Commits added to the branch:

  9e910e9... player: Define state GObject property
  18c04ad... player: Define duration GObject property
  d401052... player: Use second unit to set position
  87ab43c... smoothscale: Do not interact with GstPlayer
  a42f582... smoothscale: Use GObject property syntax
  2fe422e... gstplayer: Use GObject property syntax