Always include Content-Range if size of item is known.
Always include Content-Range if size of item is known.

DLNA requirement 7.4.35.7.

svn path=/trunk/; revision=429

Pelagicore/Media-Manager-Rygel-patched,Pelagicore/Media-Manager-Rygel-patched,GNOME/rygel,GNOME/rygel,Tarnyko/rygel,Pelagicore/Media-Manager-Rygel-patched,Tarnyko/rygel,jku/rygel,luisbg/rygel,jku/rygel,GNOME/rygel