deleting 1.5.1

git-svn-id: https://plugins.svn.wordpress.org/file-away/trunk@878813 b8457f37-d9ea-0310-8a92-e5e31aec5664
uploading 1.7

git-svn-id: https://plugins.svn.wordpress.org/file-away/trunk@878817 b8457f37-d9ea-0310-8a92-e5e31aec5664