* [MOD] Improved LDAP import

* [ADD] Groups import from LDAP
* [MOD] Improved LDAP auth behavior
* [MOD] Config data is always cloned on every request
* [MOD] Improved non RSA encrypted data detection
* [MOD] Code refactoring

lib/SP/DataModel/UserPassData.php

@@ -38,19 +38,19 @@ class UserPassData extends DataModelBase
     /**
      * @var string
      */
-    public $pass = '';
+    public $pass;
     /**
      * @var string
      */
-    public $hashSalt = '';
+    public $hashSalt;
     /**
      * @var string
      */
-    public $mPass = '';
+    public $mPass;
     /**
      * @var string
      */
-    public $mKey = '';
+    public $mKey;
     /**
      * @var int
      */