update Changelog: add entry for xdg-screensaver/KDE4 support (BR17537)
update Changelog: add entry for xdg-screensaver/KDE4 support (BR17537)

freedesktop-unofficial-mirror/xdg__xdg-utils,freedesktop-unofficial-mirror/xdg__xdg-utils,karolherbst/xdg-utils,matthewbauer/xdg-utils-ng,karolherbst/xdg-utils,matthewbauer/xdg-utils-ng