Log Message:
xfce4-whiskermenu-plugin: update to 2.4.5

2.4.5
=====
- Fix saving plugin title with overridden default text. (Bug #16822)
- Fix extra key press to select search items. (Issue #8)
- Fix icon view skipping first item when pressing arrow key.
- Fix incorrect signal name.
- Fix nonfunctional grab check.
- Translation updates: Asturian, Dutch, Esperanto, Hungarian, Icelandic,
  Portuguese, Portuguese (Brazil), Russian.