Remove all non Identity API methods from Identity.php. Created an MY_Session class to provide the user state changes in the session and a login.php helper that has the login form.

modules/server_add/helpers/server_add_theme.php

@@ -19,7 +19,7 @@
  */
 class server_add_theme_Core {
   static function head($theme) {
-    if (Identity::active()->admin) {
+    if (Session::active_user()->admin) {
       $theme->script("server_add.js");
     }
   }