Implemented accordion widget into plugin.

git-svn-id: https://plugins.svn.wordpress.org/pj-jquery-ui-helper/trunk@932571 b8457f37-d9ea-0310-8a92-e5e31aec5664
Version updated

git-svn-id: https://plugins.svn.wordpress.org/pj-jquery-ui-helper/trunk@932572 b8457f37-d9ea-0310-8a92-e5e31aec5664