* Tweak: Delete API Key activation if no matching API Resource exists when API functions status(), information(), or update() are queried and and Instance ID is sent.
* Tweak: Lowered API functions status(), information(), and update() cache expiration to 1 hour.
* Fix: Warning - Undefined index line 1261 in woocommerce-api-manager/includes/wc-am-product-admin.php.