* Fix - Error when setting category level points setting on cart/checkout.
* Fix - Points are being added back to the account after redemption.
* Fix - Move the "Earn points" message right above the cart form.
* Fix - Update for WooCommerce 3.0 compatibility.
* Fix - PHP notices when activating plugin.
* Fix - Points were redeemed even on failed payments.
* Fix - Logic that determines if coupon is applied.
* Fix - Variation with same price not showing earn points message.
