WooCommerce Google Product Feeds 11.0.14

* New: Ship .POT file for easier translations
* New: Template tags now support individual variations
* New: Add performance stats to XML footer if WP_DEBUG enabled
* Fix: Avoid unnecessary output-buffering conflicting with WP Rocket's "remove query strings" functionality
* Fix: Speed & memory optimisations for stores with heavily-variable products

**NOTE** If you have custom code using the WoocommerceGpfFeedItem class, it's definition changes in this release, and your code will need updating.

* New: Introduce template tags for outputting product feed elements on product pages
* New: Support for Bing shipping tags (required in Germany only)

* New: Support for WooCommerce REST API v2
* New: Add plugin version number to generator tag in Google feed for debugging
* New: Add details of the plugin configuration to the WooCommerce system report
* New: Add documentation links to plugin settings page
* New: Improvement in pricing details for bundle products (requires Product Bundles > 5.4.3)
* Fix: Avoid PHP warning if pre-population settings aren't initialised
* Fix: initialise pre-population settings array on fresh installs
* Fix: Resolve issue where some elements could be lost if corrupt product metadata present
* Fix: Fix issue where the price in the feed for composite products wasn't always the minimum price of that product (requires Composite Products > 3.11.3)
* Change: Improved unit tests for key classes