Releasing 1.2.4

git-svn-id: https://plugins.svn.wordpress.org/addthis-follow/trunk@856410 b8457f37-d9ea-0310-8a92-e5e31aec5664
Minor bug fix

git-svn-id: https://plugins.svn.wordpress.org/addthis-follow/trunk@857049 b8457f37-d9ea-0310-8a92-e5e31aec5664