Adding missing doc comments.

Updated use of Controller::persistModel; Lazy Loading of models now work when this is set to true.
Fixed Scaffold to work with Controller::persistModel = true;

git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@4003 3807eeeb-6ff5-0310-8944-8be069107fe0

cake/libs/controller/components/security.php

@@ -1,6 +1,5 @@
 <?php
 /* SVN FILE: $Id$ */
-
 /**
  * Short description for file.
  *
@@ -27,7 +26,6 @@
  * @lastmodified	$Date$
  * @license			http://www.opensource.org/licenses/mit-license.php The MIT License
  */
-
 /**
  * Short description for file.
  *