Fix ZF-11443: Zend_Controller_Router_Route_Chain does not implement getDefault and getDefaults

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@25248 44c647ce-9c0f-0410-b52a-842ac1e357ba
Fix ZF-11442: Zend_Navigation_Page_Mvc::isActive does not work for chained routes (Unit test added)

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@25250 44c647ce-9c0f-0410-b52a-842ac1e357ba