[gnome-control-center] (4 commits) Non-fast-forward update to branch wip/carlosg/search-tracker3

[Robert Ancell <rancell src gnome org>]

The branch 'wip/carlosg/search-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:

  3a04116... search: Check for either tracker 2.x or 3.x schemas

Commits added to the branch:

  7bbbef5... printers: Fix autoptr object not being initialized to NULL. (*)
  243ff6a... user-accounts: Fix a critical warning if loading a cursor f (*)
  e522e5e... wacom: Fix a critical warning if loading a cursor fails (*)
  27e1140... search: Check for either tracker 2.x or 3.x schemas

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