WooCommerce Smart Coupons 8.20.1

* New: Show Store Credit & other coupons separately on Coupons tab under My Account page (WooCommerce 2.6+)
* New: Show total credit amount available to reedem on Coupons tab under My Account page (WooCommerce 2.6+)
* Update: Do not show Coupon Received section on My Account page (can be changed via option - show_coupon_received_on_my_account)
* Update: CSS tweaks for showing scroll bar on Cart & Checkout page for coupons
* Update: POT file

* Fix: Coupons sent in email is not applying when clicked
* Fix: Coupon code applied via URL is not working sometimes
* Update: POT file

* Fix: Store Credit restricted to products or product categories not calculating the total correctly
* Update: Email Subject line for store credit emails
* Update: Grammatical correction in Send Store Credit form on checkout page (when sending to multiple people)
* Update: POT file