new file:   admin/js/articlemgr.js
	modified:   application/config/routes.php
	modified:   application/controllers/admin.php
	new file:   application/models/ArticleDB.php
	new file:   application/views/admin/articleclassmgr.php
	deleted:    application/views/admin/articlemgr.php
	modified:   application/views/admin/footer.php
	modified:   application/views/admin/navlist.php