[gnome-shell] (6 commits) Non-fast-forward update to branch wip/fmuellner/volume-change-feedback

[Florian Müllner <fmuellner src gnome org>]

The branch 'wip/fmuellner/volume-change-feedback' 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:

  036f386... volume: Add back sound feedback on scroll
  e42aa6a... volume: Only emit sound feedback after volume changes
  f7729d4... slider: Stop emulating drags in key handling
  e0c5b6c... volume: Skip volume-change feedback while playing

Commits added to the branch:

  7e9f30d... appDisplay: Ensure we don't recreate existing AppIcons for  (*)
  5af8bf2... volume: Add back sound feedback on scroll
  6c8eb1a... volume: Only emit sound feedback after volume changes
  a8005e3... slider: Stop emulating drags in key handling
  c506eda... gvc: Update submodule
  2894085... volume: Skip volume-change feedback while playing

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