Obsolete's requestModule and Singleton

src/Umbraco.Web/umbraco.presentation/requestModule.cs

@@ -20,6 +20,7 @@ namespace umbraco.presentation
 	/// <summary>
 	/// Summary description for requestModule.
 	/// </summary>
+	[Obsolete("This class is not used anymore and will be removed from the codebase in future versions.")]
 	public class requestModule : IHttpModule
 	{
 		protected static Timer publishingTimer;

src/umbraco.businesslogic/Utils/Singleton.cs

@@ -20,6 +20,7 @@ namespace umbraco.BusinessLogic.Utils
     ///	}
     /// </summary>
     /// <typeparam name="T">Any class that implements default constructor</typeparam>
+    [Obsolete("Creating singletons should be done manually using the many different techiques available in .Net")]
     public static class Singleton<T> where T : new()
     {
     	public static T Instance