[gnome-control-center] (6 commits) Non-fast-forward update to branch phako/fix-sharing-tracker3

[Robert Ancell <rancell src gnome org>]

The branch 'phako/fix-sharing-tracker3' 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:

  5173996... sharing: Also disable Tracker3

Commits added to the branch:

  2def271... printers: Add pp_job_new and associated methods. (*)
  f1bcaf1... power: Add "Power Mode" section (*)
  c18875c... printers: Do not cleanup task after getting bus (*)
  f4f44f5... shell: Do not show panel description by default (*)
  43b444f... display: Try harder to select a good and working scale (*)
  598505e... sharing: Also disable Tracker3

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