enhancement: Slug Behaviour

[majic3]

perhaps there is an update availabel to this behavior

the followiing code:
require_once APP . 'app_helper.php';

(I have moved this line to the private getSlug method seems to have no adverse effects)

means that when using models within shell/tasks cause output errors, moving the line above makes models within wf work within shells/tasks

perhaps
if (!class_exists('AppHelper')) {
App::import('Core', 'AppHelper', false);
}

[majic3]

seems to be required for cake 1.2.4 (b2c using 1.2.3)