Woocommerce Amazon S3 Storage 2.7.1

* Tweak - Added setting to control the download method on S3 files.
* Fix - Fixed compatibility issue with the 'Free Downloads WooCommerce' plugin.

* Tweak - Force the 'Redirect only' download method on S3 files.
* Tweak - Added new S3 region 'ap-southeast-4' (Melbourne) to the list.
* Tweak - Escape the shortcode returned values.
* Tweak - Sanitize input values when generating the file download path.
* Tweak - Tested compatibility up to WC 7.9.

* Tweak - Hide setting fields until credentials are entered.
* Tweak - Remove the S3 API credentials on the plugin uninstall.
* Tweak - Tested compatibility up to WC 7.6.
* Tweak - Tested compatibility with WP 6.2