adding first version of mydownload plugin

git-svn-id: https://plugins.svn.wordpress.org/mydownload/trunk@846316 b8457f37-d9ea-0310-8a92-e5e31aec5664
adding first version of mydownload plugin

git-svn-id: https://plugins.svn.wordpress.org/mydownload/trunk@846317 b8457f37-d9ea-0310-8a92-e5e31aec5664
adding first version of mydownload plugin

git-svn-id: https://plugins.svn.wordpress.org/mydownload/trunk@846323 b8457f37-d9ea-0310-8a92-e5e31aec5664