stable tag update

git-svn-id: https://plugins.svn.wordpress.org/lessjs/trunk@992328 b8457f37-d9ea-0310-8a92-e5e31aec5664
read me update

git-svn-id: https://plugins.svn.wordpress.org/lessjs/trunk@992331 b8457f37-d9ea-0310-8a92-e5e31aec5664