[tomboy] Use Hyena.Json.Serializer to generate note-changes JSON.

[Sanford Armstrong <sharm src gnome org>]

commit 6732d82a38d137582b4237a3b6e82afade7e9c50
Author: Sandy Armstrong <sanfordarmstrong gmail com>
Date:   Sun May 17 07:40:11 2009 -0700

    Use Hyena.Json.Serializer to generate note-changes JSON.
---
 Tomboy/Addins/WebSyncService/Api/UserInfo.cs |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/Tomboy/Addins/WebSyncService/Api/UserInfo.cs b/Tomboy/Addins/WebSyncService/Api/UserInfo.cs
index 219a90a..9f41c64 100644
--- a/Tomboy/Addins/WebSyncService/Api/UserInfo.cs
+++ b/Tomboy/Addins/WebSyncService/Api/UserInfo.cs
@@ -157,8 +157,10 @@ namespace Tomboy.WebSync.Api
 				noteChangesArray.Add (note.ToUpdateObject ());
 			noteChangesObj ["note-changes"] = noteChangesArray;
 
-			// TODO: Convert noteChangsObj to string
-			return string.Empty;
+			// TODO: Handle errors
+			Hyena.Json.Serializer serializer =
+				new Hyena.Json.Serializer (noteChangesObj);
+			return serializer.Serialize ();
 		}
 		
 		#endregion