#013313: Webdav does not recognize recent Nautilus versions correctly

Recent Nautilus versions identity as "gvfs/<someversion>" instead of the old "gnome-vfs/<someversion> neon/<someversion>". The Nautilus specific property handler does not react on that, so "... charset=..." information is still displayed in the MIME type field of Nautilus.

Operating System:
PHP Version: (please be specific, like '4.4.3' or '5.1.5')
Database and version:
Browser (and version):