Added comment

git-svn-id: https://plugins.svn.wordpress.org/active-directory-integration/trunk@997208 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated changelog

git-svn-id: https://plugins.svn.wordpress.org/active-directory-integration/trunk@997209 b8457f37-d9ea-0310-8a92-e5e31aec5664