Obsoleted umbraco.businesslogic.ApplicationTree, have moved logic and new classes to core and proxied calls from it to the new ones. The new ApplicationTreeCollection will be the runtime colleciton of trees which can also read/write/save to the xml.

src/Umbraco.Core/ModelMapperHelper.cs

@@ -0,0 +1,15 @@
+using AutoMapper;
+
+namespace Umbraco.Core
+{
+    /// <summary>
+    /// Helper class for static model mapping with automapper
+    /// </summary>
+    internal static class ModelMapperHelper
+    {
+        internal static IMappingExpression<TSource, TSource> SelfMap<TSource>()
+        {
+            return Mapper.CreateMap<TSource, TSource>();
+        }
+    }
+}