fix(setup) Fix problems in setup

Checks, LDAP base and admin creation were broken

issue #6122

setup/class_setupStepLdap.inc

@@ -26,7 +26,10 @@ class setupStepLdap extends setupStep
   var $connect_id = FALSE;
   var $bind_id    = FALSE;
 
-  static function getAttributesInfo()
+  private $lastBase       = '';
+  private $lastConnection = '';
+
+  static function getAttributesInfo ()
   {
     return array(
       'connection' => array(
@@ -128,17 +131,18 @@ class setupStepLdap extends setupStep
         'base', TRUE
       );
     }
+    $this->lastConnection = $this->connection;
+    $this->lastBase       = $this->base;
   }
 
   function save_object()
   {
-    $base       = $this->base;
-    $connection = $this->connection;
     parent::save_object();
-    $this->connection = preg_replace("/\/$/", "", $this->connection);
-    if (($this->base != $base) || ($this->connection != $connection)) {
+    $this->connection = preg_replace('/\/$/', '', $this->connection);
+    if (($this->base != $this->lastBase) || ($this->connection != $this->lastConnection)) {
       $this->parent->disable_steps_from(($this->parent->step_name_to_id(get_class($this))) + 1);
-      if ($this->connection != $connection) {
+      $this->lastBase       = $this->base;
+      if ($this->connection != $this->lastConnection) {
         $this->update_base_choices();
       }
     }

setup/class_setupStepMigrate.inc

@@ -104,6 +104,11 @@ class StepMigrateDialog extends GenericDialog
   {
     return FALSE;
   }
+
+  public function getInfos ()
+  {
+    return $this->infos;
+  }
 }
 
 class StepMigrateCheck