Doc updates

git-svn-id: https://plugins.svn.wordpress.org/wp-e-commerce-simple-product-options/trunk@937438 b8457f37-d9ea-0310-8a92-e5e31aec5664
Doc updates

git-svn-id: https://plugins.svn.wordpress.org/wp-e-commerce-simple-product-options/trunk@937444 b8457f37-d9ea-0310-8a92-e5e31aec5664