HC Custom WP-Admin URL is another new WordPress plugin that allows you to edit WP Admin area URL slug from wp-admin to someting else of your choice.
Using this new plugin you can change wp-admin and wp-login.php to any of your choice. Instead of http://example.org/wp-admin/ and http://example.org/wp-login.php you can get http://example.org/admin or http://example.org/banana
Simply install and activate it then visit your admin area Dashboard -> Settings -> Permalinks and scroll down to WP-Admin page slug section and enter desired WP Admin slug, save settings and you are done.