Log Message:
xfce4-tumbler: update to 0.2.4

Change log:

0.2.4
=====
- Check for sparse video files only on plugin side
- Set Max file sizes
- Add Fujifilm RAF support (Bug #14522)
- Add more media types for audio cover thumbnails (Bug #12041)
- Fix a typo in desktop-thumbnailer-provider.c (Bug #14925)
- Update URLs in README and configure.ac
- Fix g_type_class_add_private is deprecated
- Bump glib version
- Translation Updates: Albanian, Basque, Belarusian, Catalan, Dutch (Flemish),
  Finnish, French, Galician, Hebrew, Italian, Kazakh, Lithuanian, Polish,
  Portuguese (Brazilian), Romanian, Russian, Slovak, Swedish, Ukrainian