Copying trunk to 4.1.5

git-svn-id: https://plugins.svn.wordpress.org/livefyre-comments/branches/4.1.5@1038564 b8457f37-d9ea-0310-8a92-e5e31aec5664
Sanitize data

git-svn-id: https://plugins.svn.wordpress.org/livefyre-comments/branches/4.1.5@1038566 b8457f37-d9ea-0310-8a92-e5e31aec5664