Initial commit

git-svn-id: https://plugins.svn.wordpress.org/soup-show-off-upcoming-posts/trunk@1004470 b8457f37-d9ea-0310-8a92-e5e31aec5664
Updated readme to reference development on GitHub.

git-svn-id: https://plugins.svn.wordpress.org/soup-show-off-upcoming-posts/trunk@1004471 b8457f37-d9ea-0310-8a92-e5e31aec5664