Added a shortcode to embed the v3 graph.


git-svn-id: https://plugins.svn.wordpress.org/share-link/trunk@1016439 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme for 1.1.7 release.


git-svn-id: https://plugins.svn.wordpress.org/share-link/trunk@1016441 b8457f37-d9ea-0310-8a92-e5e31aec5664