Update to 3.18.1

[Tim Lunn]

Requires gnome-desktop 3.18 transition

[Launchpad Janitor (janitor)]

This bug was fixed in the package gnome-control-center - 1:3.18.1-1ubuntu1

---------------
gnome-control-center (1:3.18.1-1ubuntu1) xenial; urgency=medium

  * Merge with Debian, remaining changes: (LP: #1511140)
    + debian/patches:
      - 52_region_language.patch
        Adapt region panel to use Ubuntu style regions
      - 56_use_ubuntu_info_branding.patch,
        ubuntu-gnome-version.patch
         Use Ubuntu GNOME branding
      - 64_restore_terminal_keyboard_shortcut.patch
         Bring back terminal shortcut
      - 92_ubuntu_system_proxy.patch
         Add system proxy support
      - 99_add_lock-on-suspend.patch
         Add option to lock on suspend
      - ubuntu_external_panels.patch
         Reimplement support for desktop launchers
      - revert_online_accounts_disable_remove_button.patch,
        revert_revert_main_disable_sslv3_because_of_POODLE.patch
          revert patches that require g-o-a 3.16
    + debian/control.in:
      - Drop Recommends for packages not in main
      - Various other Ubuntu specific changes
      - build-dep on ttf-ubuntu-font-family and valac
         For logo generation
    + Split out shared data that is used by unity-control-center
    + Add a wrapper to run unity-control-center in Unity
    + Install apport hook

 -- Tim Lunn <email address hidden> Sun, 08 Nov 2015 07:40:49 +1100