fix the authentication to check admin users.
Fix: infinite loop in the Auth plugin.
FiX: Model_Users::isAdmin() to check admin users.
Add: new Acl class.
add new customer select list to entry form.
Add: new Model_Categories.
Update: disable Admin_CatController and Category Entity.
FiX: enable auto proxy class generation for development.
Fix: seperate js file for entry-form.
Add: new migration class, disabled old one.
Update: refactor unit tests.