added social follow buttons to help metabox

git-svn-id: https://plugins.svn.wordpress.org/nextgen-facebook/trunk@776395 b8457f37-d9ea-0310-8a92-e5e31aec5664
added social follow buttons to help metabox

git-svn-id: https://plugins.svn.wordpress.org/nextgen-facebook/trunk@776398 b8457f37-d9ea-0310-8a92-e5e31aec5664