Ready for 1.2.1

git-svn-id: https://plugins.svn.wordpress.org/responsive-video-shortcodes/trunk@862288 b8457f37-d9ea-0310-8a92-e5e31aec5664
License added

git-svn-id: https://plugins.svn.wordpress.org/responsive-video-shortcodes/trunk@862289 b8457f37-d9ea-0310-8a92-e5e31aec5664