[CakePHP] Wizard Component - Skip steps or not? Trick

http://bakery.cakephp.org/articles/jaredhoyt/2010/09/10/wizard-component-1-2-1

Set $autoAdvance to false, and the pages is forced to be navigated step by step.
Set $autoAdvance to true, then pages will jump to the last completed page after clicking 'next'.