Log Message:
xfce4-whiskermenu-plugin: update to 2.8.3

2.8.3
=====
- Fix adding launchers to desktop. (Issue #122)
- Fix segfault in profile destructor. (Issue #123)
- Translation updates: Catalan, Chinese (Taiwan), Danish, Dutch, German,
  Greek, Indonesian, Korean, Lithuanian, Polish, Portuguese, Serbian, Slovak,
  Spanish, Swedish.