Major changes. Latest RRSSB code. 

git-svn-id: https://plugins.svn.wordpress.org/ridiculously-responsive-social-sharing-buttons/trunk@1042339 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update readme.txt

git-svn-id: https://plugins.svn.wordpress.org/ridiculously-responsive-social-sharing-buttons/trunk@1042342 b8457f37-d9ea-0310-8a92-e5e31aec5664