* Fixed: Coupon export as XML
* Fixed: Order export as XML
* Fixed: Customer export as XML
* Fixed: Compatibility with WordPress 3.9.1
* Added: Product export support for Advanced Google Product Feed
* Added: Product export support for All in One SEO Pack
* Added: Product export support for WordPress SEO
* Added: Product export support for Ultimate SEO
* Fixed: Fatal error affecting CRON export for XML export
* Fixed: Remember column options after exporting Orders
* Fixed: Clearing the Limit Volume or Offset values would not be saved
* Fixed: Force file extension if removed from the Filename option on Settings screen
* Changed: Reduced memory load by storing $args in $export global

git-svn-id: https://plugins.svn.wordpress.org/woocommerce-exporter/trunk@919231 b8457f37-d9ea-0310-8a92-e5e31aec5664