1.2.1 hotfix for posts using the shortcode with no downloads available

git-svn-id: https://plugins.svn.wordpress.org/post-attached-media-downloads/trunk@963096 b8457f37-d9ea-0310-8a92-e5e31aec5664
1.2.1 version tag

git-svn-id: https://plugins.svn.wordpress.org/post-attached-media-downloads/trunk@963097 b8457f37-d9ea-0310-8a92-e5e31aec5664