[rygel] server: Add UPNP_CLASS to MediaItem

[Jens Georg <jensgeorg src gnome org>]

commit 4262b12d6b1336a2178b8a046e31052cb8b495a9
Author: Jens Georg <mail jensge org>
Date:   Sun May 15 22:43:58 2016 +0200

    server: Add UPNP_CLASS to MediaItem
    
    Signed-off-by: Jens Georg <mail jensge org>

 src/librygel-server/rygel-media-item.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/librygel-server/rygel-media-item.vala b/src/librygel-server/rygel-media-item.vala
index 3d49aa9..61a39e3 100644
--- a/src/librygel-server/rygel-media-item.vala
+++ b/src/librygel-server/rygel-media-item.vala
@@ -38,6 +38,7 @@ private errordomain Rygel.MediaItemError {
  * MediaItems must live in a container and may not contain other MediaItems
  */
 public abstract class Rygel.MediaItem : MediaObject {
+    public const string UPNP_CLASS = "objec.item";
 
     public string description { get; set; default = null; }