A number of fixes.

git-svn-id: https://plugins.svn.wordpress.org/wpbizplugins-custom-admin-help-boxes/trunk@971243 b8457f37-d9ea-0310-8a92-e5e31aec5664
Another minor fix..

git-svn-id: https://plugins.svn.wordpress.org/wpbizplugins-custom-admin-help-boxes/trunk@971244 b8457f37-d9ea-0310-8a92-e5e31aec5664