Fixes U4-3190 Look for all umbraco.aspx references as there's still some buttons redirecting to there

Using Sebs suggestion

src/Umbraco.Web.UI/Umbraco.Web.UI.csproj

@@ -620,7 +620,15 @@
     </Compile>
     <Content Include="Umbraco\create.aspx" />
     <Content Include="Umbraco\Logout.aspx" />
+    <Content Include="Umbraco\umbraco.aspx" />
     <Content Include="Umbraco_Client\IconPicker\iconpicker.js" />
+    <Compile Include="Umbraco\umbraco.aspx.cs">
+      <DependentUpon>umbraco.aspx</DependentUpon>
+      <SubType>ASPXCodeBehind</SubType>
+    </Compile>
+    <Compile Include="Umbraco\umbraco.aspx.designer.cs">
+      <DependentUpon>umbraco.aspx</DependentUpon>
+    </Compile>
     <Compile Include="Umbraco\Users\EditUser.aspx.cs">
       <DependentUpon>EditUser.aspx</DependentUpon>
       <SubType>ASPXCodeBehind</SubType>

src/Umbraco.Web.UI/Umbraco/umbraco.aspx

@@ -0,0 +1,2 @@
+<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="umbraco.aspx.cs" Inherits="Umbraco.Web.UI.Umbraco.umbraco" %>
+

src/Umbraco.Web.UI/Umbraco/umbraco.aspx.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Web.UI;
+using System.Web.UI.WebControls;
+using Umbraco.Core.Configuration;
+
+namespace Umbraco.Web.UI.Umbraco
+{
+    public partial class umbraco : System.Web.UI.Page
+    {
+        protected void Page_Load(object sender, EventArgs e)
+        {
+            Response.Status = "301 Moved Permanently";
+            Response.AddHeader("Location", GlobalSettings.Path);
+        }
+    }
+}

src/Umbraco.Web.UI/Umbraco/umbraco.aspx.designer.cs

@@ -0,0 +1,15 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated. 
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace Umbraco.Web.UI.Umbraco {
+    
+    
+    public partial class umbraco {
+    }
+}