Upgrade to Wordpress 4.0.1 and WP E-Commerce 3.9

git-svn-id: https://plugins.svn.wordpress.org/wpsc-dta-export/trunk@1039844 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fix Version Number

git-svn-id: https://plugins.svn.wordpress.org/wpsc-dta-export/trunk@1039847 b8457f37-d9ea-0310-8a92-e5e31aec5664
delete old lib folder

git-svn-id: https://plugins.svn.wordpress.org/wpsc-dta-export/trunk@1039849 b8457f37-d9ea-0310-8a92-e5e31aec5664