wp 4.0

git-svn-id: https://plugins.svn.wordpress.org/wp-csv-to-database/trunk@981113 b8457f37-d9ea-0310-8a92-e5e31aec5664
readme file update

git-svn-id: https://plugins.svn.wordpress.org/wp-csv-to-database/trunk@981120 b8457f37-d9ea-0310-8a92-e5e31aec5664