GNOME Control Center was updated to fix some bugs.

- Downgrade cups-pk-helper Requires to Recommends (boo#904047)

- Allow timezone changes by user if permitted by polkit permissions (boo#904058)

- Add patches from upstream for critical issues:
+ gnome-control-center-no-country-code-crash.patch: fix
a crash for locales with no country codes (boo#904071,
bgo#738963)
+ gnome-control-center-user-account-cheese-crash.patch:
user-account -- do not crash while taking a picture for user
avatar using cheese (boo#904070, bgo#697039)
+ gnome-control-center-crash-when-date-unavailable.patch:
background -- do not crash when date is unavailable
(boo#904073, bgo#736475).

- Recommend the installation of dbus(com.intel.dleyna-server):
through the online-accounts panel, it is possible to configure
DLNA Media Servers (for gnome-photos). This feature relies on
dleyna-server.