Responsive Lightbox commit

git-svn-id: https://plugins.svn.wordpress.org/responsive-lightbox/trunk@794793 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update to version 1.3.0

git-svn-id: https://plugins.svn.wordpress.org/responsive-lightbox/trunk@794810 b8457f37-d9ea-0310-8a92-e5e31aec5664