title: Undefined property: ModelTask::$useDbConfig
body: <p>in CakePHP book example <a href="http://book.cakephp.org/view/642/Preparing-our-Application" rel="nofollow noreferrer">here</a>
  I try:
  cake bake all
  then I choose 1 for Group</p>
  <p>but i get an error</p>
  <blockquote>
  <p>Notice: Undefined property: ModelTask::$useDbConfig in
  /opt/lampp/htdocs/acl_cake/cake/console/libs/tasks/model.php on line
  848</p>
  <p>Fatal error: ConnectionManager::getDataSource - Non-existent data
  source  in
  /opt/lampp/htdocs/acl_cake/cake/libs/model/connection_manager.php on
  line 109</p>
  </blockquote>