CakePHP 2.6 error : Error: Cannot use ‘String’ as class name as it is reserved

discussion and solution: https://github.com/ZoneMinder/ZoneMinder/issues/1227

migration guide: http://book.cakephp.org/2.0/en/appendices/2-8-migration-guide.html

releases: https://github.com/cakephp/cakephp/releases

Deprecated (16384): Using key `action` is deprecated, use `url` directly instead. [CORE\Cake\View\Helper\FormHelper.php, line 383]

solution: http://stackoverflow.com/questions/35746058/using-key-action-is-deprecated-use-url-directly-instead-in-cakephp