Woocommerce Name your price 3.5.14

Update: Tested against WC 4.2.
New: Support for CoCart for headless stores
Fix: Make subscription period string translatable.
Fix: Prevent duplicate Suggested Price strings if theme has customized price template’s location.

* Fix: Typo in subscription switching error message.
* Fix: Incorrect subscription switching errors on simple subscriptions with variation switching disabled.

* Fix: Default to "Choose price" for add to cart text in loop if setting is left empty.
* Fix: Javascript error on variations since helpers can return false, need to check variation price aren't false.
* Fix: Undefined variable in variable product sync/save routine.
* Tweak: Reduce subscription terms to "Due for X $period" when billing interval and billing length are the same.