[tracker] Add nmm:alternativeMedia property

[Ivan Frade <ifrade src gnome org>]

commit 59eb7c1b105a2526d7619805d739eeb44fc404c6
Author: Ivan Frade <ivan frade nokia com>
Date:   Mon Nov 23 13:24:23 2009 +0200

    Add nmm:alternativeMedia property
    
    To link resources that are the same with different encodings and codecs.
    
    For instance, resources exposed by a uPnp server

 data/ontologies/38-nmm.ontology |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/data/ontologies/38-nmm.ontology b/data/ontologies/38-nmm.ontology
index 75b66c2..5c6cfc3 100644
--- a/data/ontologies/38-nmm.ontology
+++ b/data/ontologies/38-nmm.ontology
@@ -488,3 +488,10 @@ nmm:protocol a rdf:Property ;
 	rdfs:domain nmm:DigitalRadio ;
 	rdfs:range xsd:string .
 
+
+# Upnp related resources
+nmm:alternativeMedia a rdf:Property ;
+        rdfs:label "Alternative media" ;
+	rdfs:comment "Link between to different version of the same media. This is used for instances in uPnp where the server can provide the same video in different resolutions and codecs" ;
+	rdfs:domain nfo:Media ;
+	rdfs:range nfo:Media .