Add tests for widget shortcodes

git-svn-id: https://plugins.svn.wordpress.org/am-events/trunk@921539 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update version number

git-svn-id: https://plugins.svn.wordpress.org/am-events/trunk@921541 b8457f37-d9ea-0310-8a92-e5e31aec5664