Log Message:
xfce4-dict: update to 0.8.3

Change log:

xfce4-dict-0.8.3
================
- Allow compilation with panel 4.15
- Show correct colors (Bug #15946)
- Avoid mnemonic conflict
- Fix g_type_class_add_private deprecation in recent GLib
- Replace GtkStock buttons
- Fix typo of dict.cc (Bug #15571)
- Fix parallel build (Bug #14963)
- Translation Updates: Albanian, Belarusian, Catalan, Chinese (China),
  Chinese (Taiwan), Croatian, Czech, Danish, Dutch, English (Australia),
  Finnish, French, Galician, German, Hebrew, Hungarian, Icelandic, Italian,
  Japanese, Kazakh, Korean, Lithuanian, Malay, Norwegian Bokmål, Polish,
  Portuguese, Portuguese (Brazil), Russian, Spanish, Thai, Turkish