xfce4-wm: update to 4.16.1

Change log:

4.16.1
======

- Catch more XErrors (#476, #486)
- Untile window before switching to fullscreen (#478)
- Allow interactive resizing with any keyboard modifier (#487)
- Do not prefer Xpresent on AMD/Radeon (#490)
- Use g_info/g_print instead of g_message for some message
- I18n: Update translation:
  ast, be, be@tarask, cs, el, et, eu, fi, he, hr, hu, ie, pl, pt_BR, zh_TW.

4.16.0
======
- common: Avoid zero refresh rate for monitor
- hints: Protect against XError from XGetTransientFor()
- netwm: Allow above/below only for regular windows
- netwm: Mark splashscreen as transient for groups
- client: Complete client state even on different workspaces
- build: Increase GTK+ requirement to 3.22
- Add `cycle_minimized` option
- compositor: Release overlay window last
- compositor: Free GLX data when really using GLX
- compositor: Remove useless trace message
- compositor: Release current GLX context on teardown
- display: Remove custom XError handler
- compositor: Check for XError when adding windows
- compositor: Trap XErrors when disabling compositor
- main: Enable compositor by default
- compositor: Remove automatic redirect support
- main: Add short command line options
- main: Add debug command line option
- pixmap: Use a safer strncpy()
- settings: Fix compiler warning
- Remove useless autotools macros and Makefile targets
- Use --enable-debug=yes when compiling from git
- Revert "compositor: Do not damage on opaque region update"
- themes: Use smaller, lighter shadows
- compositor: Check if compositor is enabled
- compositor: Avoid XError when disabling compositor
- compositor: Warn for missing epoxy GL function
- netwm: Do not raise window if activate is set to none
- Remove GSourceFunc casts
- compositor: Fix build with older epoxy versions
- settings: Add 'Always on top' to the double click action
- Settings: Remove default alphabetical sorting of keyboard shortcuts
  Closes: #451 (Disable initial sorting of keyboard shortcuts)
- compositor: Handle XFixes XError
- compositor: Add support for GL_ARB_sync
- compositor: Return early if a Present swap is pending
- debug: Fix build in debug mode
- compositor: Fix compilation issue with Xpresent
- compositor: Log fence and GLX swap time in debug mode
- compositor: Move fence sync to redraw_glx
- compositor: Move fence triggered to its own function
- compositor: Set swap control if possible
- compositor: Adjust to the actual number of buffers
- compositor: Use a GLX drawable per buffer
- client: Allow transients for group to be minimized
- settings: Add a UI option for desktop zooming
- themes: Remove title shadow
- themes: Adjust shadows size/opacity
- client: Make above/below consistent
- compositor: Limit damage region to the screen
- compositor: Optimize repaint without vblank
- compositor: Only accumulate damage with multiple buffers
- compositor: Copy entire content for GLX buffers
- xsync: Handle XError
- compositor: Ignore opaque region for shaded windows
- compositor: Clip opaque region against window shape
- client: Protect against XError in XKillClient()
- compositor: Do not damage on opaque region update
- compositor: Opaque region applies to client window
- compositor: Reuse client size
- client: Toggle tiling on key shortcut
- client: Small cleanup
- Add README.md to EXTRA_DIST
- client: Keep tiled size of windows
- compositor: No need to update compositor window on configure
- compositor: Limit opaque region clipping to window extents
- compositor: Damage on opaque region update only if visible
- client: Send synthetic configure on force redraw
- Post release tag bump
- Translation Updates:
  Albanian, Arabic, Armenian (Armenia), Basque, Belarusian, Belarusian
  (Tarask), Bengali, Bulgarian, Catalan, Chinese (China), Chinese (Hong
  Kong), Chinese (Taiwan), Croatian, Czech, Danish, Dutch, Eastern
  Armenian, English (Australia), English (Canada), English (United
  Kingdom), Estonian, Finnish, French, Galician, Georgian, German,
  Greek, Hebrew, Hungarian, Icelandic, Indonesian, Interlingue,
  Italian, Japanese, Kazakh, Korean, Latvian, Lithuanian, Malay,
  Norwegian Bokm奪l, Norwegian Nynorsk, Occitan (post 1500), Persian
  (Iran), Polish, Portuguese, Portuguese (Brazil), Romanian, Russian,
  Serbian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish,
  Ukrainian, Urdu, Urdu (Pakistan), Uyghur

4.15.3
======

- Fix opaque regions leaving trails of unpainted areas

4.15.2
======

- Add support for opaque regions in the compositor
- Make cursor zoom optional (xfce/xfwm4#439)
- Remove the deprecated options "--daemon" (Pablo Mazzini)
- Disable Xi2 support by default
- Add column sorting in settings
- Optimize window matching in the compositor with a hash table (Michael
  Banack)
- Add more XErrors traps
- I18n: Updated translations: ar, ast, be, be@tarask, bg, bn, ca, cs, da,
  de, el, en_AU, en_CA, en_GB, es, et, eu, fa_IR, fi, fr, gl, he, hr, hu,
  hy_AM, hye, id, ie, is, it, ja, ka, kk, ko, lt, lv, ms, nb, nl, nn, oc,
  pl, pt, pt_BR, ro, ru, sk, sl, sq, sr, sv, th, tr, ug, uk, ur, ur_PK,
  vi, zh_CN, zh_HK, zh_TW
  New translations: be@tarask, fa_IR, hye, ka

4.15.1
======

- Fix an error leak in compositor (xfce/xfwm4#351)
- Fix compositor selection atom misuse
- Prefer zero initialized memory allocation functions
- Use g_slice allocator for compositor windows

4.15.0
======

- First 4.15.x development release
- Show tabwin only on primary monitor if set
- All fixes and i18n as found in 4.14.4


(gutteridge)