Fixing unit tests

src/umbraco.interfaces/ITask.cs

@@ -5,6 +5,7 @@ namespace umbraco.interfaces
 	/// <summary>
 	/// Summary description for ITask.
 	/// </summary>
+    [Obsolete("ITask is used for legacy webforms back office editors, change to using the v7 angular approach")]
 	public interface ITask
 	{
 		int ParentID {set; get;}