Rygel 0.17.10 Adds Hacks for Samsung TVs

Rygel 0.17.10 fixes preferences desktop file, a namespace and typo for errordomain, and a variable expansion in configure scripts. Also, Rygel 0.17.10 adds some hacks for Samsung TVs, in order to generate proper mime-type for Matroska (MKV) files. Last but not least, Rygel 0.17.10 reverts change for static titles in MediaExport, displays a proper error message on plabybin errors (GStreamer renderer).