[gnome-control-center] (2 commits) Non-fast-forward update to branch mwleeds/region-login-screen-toggle

[Robert Ancell <rancell src gnome org>]

The branch 'mwleeds/region-login-screen-toggle' 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:

  635e97e... region: replace the "Login Screen" button

Commits added to the branch:

  0f18a66... sound: update the volume-slider after getting a valid strea (*)
  925d719... region: replace the "Login Screen" button

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