Another attempt at updating this plugin.

git-svn-id: https://plugins.svn.wordpress.org/jquery-expandable-comments/trunk@864147 b8457f37-d9ea-0310-8a92-e5e31aec5664
adding missing js file

git-svn-id: https://plugins.svn.wordpress.org/jquery-expandable-comments/trunk@864152 b8457f37-d9ea-0310-8a92-e5e31aec5664