Removes booting.aspx and creates embedded html pages for booting and failed (if those are ever seen ), renames some classes and namespaces, removes old cdf bundle classes

src/Umbraco.Web/Mvc/ProfilingViewEngine.cs

@@ -1,9 +1,7 @@
 using System.Web.Mvc;
-using Umbraco.Core.Logging;
-using Umbraco.Web;
 using Umbraco.Web.Composing;
 
-namespace Umbraco.Core.Profiling
+namespace Umbraco.Web.Mvc
 {
     public class ProfilingViewEngine: IViewEngine
     {