Fixed a small glitch in sp-comments.php!

git-svn-id: https://plugins.svn.wordpress.org/because/trunk@999336 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated README.txt and social-polling.php to 1.3.4 tags

git-svn-id: https://plugins.svn.wordpress.org/because/trunk@999337 b8457f37-d9ea-0310-8a92-e5e31aec5664