Fixes some YSODs with older dialogs

src/Umbraco.Web/UI/Bundles/JsApplicationLib.cs

@@ -0,0 +1,13 @@
+using System.Web.UI;
+using ClientDependency.Core;
+
+namespace Umbraco.Web.UI.Bundles
+{
+    /// <summary>
+    /// The core libs that have no dependencies
+    /// </summary>
+    [ClientDependency(ClientDependencyType.Javascript, "lib/umbraco/NamespaceManager.js", "UmbracoRoot", Priority = 0, Group = 0)]
+    public class JsApplicationLib : Control
+    {
+    }
+}

src/Umbraco.Web/UI/Bundles/JsUmbracoApplicationCore.cs

@@ -0,0 +1,13 @@
+using System.Web.UI;
+using ClientDependency.Core;
+
+namespace Umbraco.Web.UI.Bundles
+{
+    /// <summary>
+    /// The core libs that require JQuery to be loaded
+    /// </summary>
+    [ClientDependency(ClientDependencyType.Javascript, "lib/umbraco/LegacyUmbClientMgr.js", "UmbracoRoot", Priority = 1, Group = 2)]
+    public class JsUmbracoApplicationCore : Control
+    {
+    }
+}