Sync'ed with github.

git-svn-id: https://plugins.svn.wordpress.org/wp-e-commerce/trunk@836750 b8457f37-d9ea-0310-8a92-e5e31aec5664
Delete files that don't exist on git master.

git-svn-id: https://plugins.svn.wordpress.org/wp-e-commerce/trunk@836752 b8457f37-d9ea-0310-8a92-e5e31aec5664