- update to version 4.8.1
- bugfixes
- translation updates
- dropped obsolete xfdesktop-4.8.0-fix-volume-change-handling.patch
and xfdesktop-4.8.0-show-name-of-desktop-files.patch

- add xfdesktop-4.8.0-fix-volume-change-handling.patch from
upstream git in order to work around an issue with GIO or GVfs
which causes mounting/unmounting on a volume-changed signal to
fail

- added xfdesktop-4.8.0-show-name-of-desktop-files.patch so that
the Name field of desktop files is shown rather than the filename