- improve summaries/descriptions
- remove unsupported locales
- do not install documentation in /usr/share/doc
- moved xfce4-tips-autostart.desktop into the branding supackage in
order to allow disabling startup tips as part of the branding
- remove all libtool files
OBS-URL: https://build.opensuse.org/package/show/X11:xfce/xfce4-session?expand=0&rev=40