[rygel] server: Add description property to MediaItem

[Jens Georg <jensgeorg src gnome org>]

commit 6babef13c8bb547c511cad5a46e867545fc03922
Author: Jens Georg <mail jensge org>
Date:   Sat Aug 18 00:09:14 2012 +0200

    server: Add description property to MediaItem

 src/librygel-server/rygel-media-item.vala |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/librygel-server/rygel-media-item.vala b/src/librygel-server/rygel-media-item.vala
index 2e0584e..56e3525 100644
--- a/src/librygel-server/rygel-media-item.vala
+++ b/src/librygel-server/rygel-media-item.vala
@@ -57,6 +57,8 @@ public abstract class Rygel.MediaItem : MediaObject {
 
     public bool place_holder { get; set; default = false; }
 
+    public string description { get; set; default = null; }
+
     internal override OCMFlags ocm_flags {
         get {
             if (this.place_holder) {
@@ -210,6 +212,10 @@ public abstract class Rygel.MediaItem : MediaObject {
             didl_item.date = this.date;
         }
 
+        if (this.description != null) {
+            didl_item.description = this.description;
+        }
+
         /* We list proxy/transcoding resources first instead of original URIs
          * because some crappy MediaRenderer/ControlPoint implemenation out
          * there just choose the first one in the list instead of the one they