add minified script

git-svn-id: https://plugins.svn.wordpress.org/radio-buttons-for-taxonomies/trunk@956239 b8457f37-d9ea-0310-8a92-e5e31aec5664
remove markdown readme

git-svn-id: https://plugins.svn.wordpress.org/radio-buttons-for-taxonomies/trunk@956240 b8457f37-d9ea-0310-8a92-e5e31aec5664