update README.md

git-svn-id: https://plugins.svn.wordpress.org/use-google-libraries/trunk@1013618 b8457f37-d9ea-0310-8a92-e5e31aec5664
Adding unit test to ensure all 'jquery-ui-*' scripts added by WordPress are handled by UGL

git-svn-id: https://plugins.svn.wordpress.org/use-google-libraries/trunk@1013619 b8457f37-d9ea-0310-8a92-e5e31aec5664
updating 'jquery-ui-*' registration list for newly added components

git-svn-id: https://plugins.svn.wordpress.org/use-google-libraries/trunk@1013620 b8457f37-d9ea-0310-8a92-e5e31aec5664
setting version to 1.6.2

git-svn-id: https://plugins.svn.wordpress.org/use-google-libraries/trunk@1013621 b8457f37-d9ea-0310-8a92-e5e31aec5664