Log Message:
xfce4-panel: update to 4.14.0

Change log:

4.14.0
======
 - tasklist: Keep panel visible on drag and drop (Bug #15703)
 - pager: Keep panel visible on drag and drop (Bug #15703)
 - launcher: Make dialog's context menu popup at pointer
 - Make strings translatable
 - Translation Updates:
   Chinese (China), Danish, Finnish, Galician, German, Hungarian, Italian,
   Japanese, Kazakh, Lithuanian, Norwegian Bokmål, Portuguese (Brazil)

4.13.7
======
 - Make vala and gobject-introspection optional
 - clock: Add short weekday to default clock string
 - clock: Add date to default clock layout (Bug #15456)
 - prefs: Improve position of panel profiles button (Bug #15657)
 - tasklist: Fix position of group indicator in vertical mode
 - tasklist: Fix overlapping vertical window titles (Bug #14901)
 - tasklist: Add fallback for missing window icons (Bug #15511)
 - directory-menu: Use natural order for sorting (Bug #15413)
 - arrow-button: Remove timeout on dispose (Bug #15696)
 - pager: Ensure bg color is set correctly (Bug #15690)
 - show-desktop: Toggle also when DND-ing (Bug #15654)
 - tic-tac-toe: Add mnemonic to Close button
 - tic-tac-toe: Avoid use-after-free/double-free (Bug #15649)
 - Translation Updates:
   Albanian, Armenian (Armenia), Belarusian, Bulgarian, Catalan, Chinese
   (China), Chinese (Taiwan), Croatian, Czech, Danish, Dutch, Finnish,
   French, Galician, German, Hungarian, Italian, Japanese, Kazakh,
   Lithuanian, Malay, Norwegian Bokmål, Polish, Portuguese, Portuguese
   (Brazil), Russian, Serbian, Spanish, Thai, Ukrainian