Log Message:
Update gnome-desktop3 to 3.14.1

- Fixed the build on systems lacking openat()
- Translation updates
- gnome-xkb-info: Fix some layouts not being associated to a locale
- gnome-rr: Add missing introspection annotations
- wall-clock: Add ref-tests for clock output
- wall-clock: Always use the ratio character (#726232)
- gnome-rr: Output the EDID vendor/product info as well
- gnome-rr: Add backlight output in debug
- thumbnailer: Try harder to create a failed thumbnail (#728775)
- Fix the build on OpenBSD
- gnome-rr: Improve debug output
- gnome-rr: Actually define output_get_possible_crtcs (#727034)
- gnome-rr: Initialize GnomeRROutputInfo:rotation to GNOME_RR_ROTATION_0 (#727023)
- Always set the DPMS mode when requested
- gnome-xkb-info: Remove xkbfile dependency (#719942) - API and ABI break
- gnome-xkb-info: Apply main layout locale metadata to variants (#711291)
- wall-clock: Replace ratio with colon on non-UTF-8 locales (#722664)
- more new gnome-rr api
- drop using glibc internal headers
- docs for thumbnailers
- idle monitor fixes
- use newer libgsystem internally
- gnome-rr: Improve debug output
- Add gnome_rr_output_get_min_backlight_step() API