put UI to the next level

git-svn-id: https://plugins.svn.wordpress.org/jm-dashicons-shortcode/trunk@906626 b8457f37-d9ea-0310-8a92-e5e31aec5664
delete unused directory

git-svn-id: https://plugins.svn.wordpress.org/jm-dashicons-shortcode/trunk@906627 b8457f37-d9ea-0310-8a92-e5e31aec5664