bugfix short tag

git-svn-id: https://plugins.svn.wordpress.org/bootstrap-shortcodes/trunk@785988 b8457f37-d9ea-0310-8a92-e5e31aec5664
added tooltip

git-svn-id: https://plugins.svn.wordpress.org/bootstrap-shortcodes/trunk@788952 b8457f37-d9ea-0310-8a92-e5e31aec5664