WooCommerce Smart Coupons 9.18.0

* Fix: Import failing for CSV file which is exported from the plugin itself
* Fix: Serialized meta data is not copied correctly during Bulk Generate of coupons
* Update: Hook for adding meta during auto-generation of new coupon
* Update: POT File

* New: Storewide option to apply credit before/after tax
* Fix: Security Vulnerability (Thanks to: Matt Cohen)
* Fix: Loss of store credit discount when updating order from admin
* Fix: Store Credit not applying discount on taxes (WooCommerce AvaTax compatibility)
* Fix: Coupons that hit usage limit are not removed from My Account > Coupons
* Fix: Incorrect text when showing coupon's expiry (e.g. Expires in 1 days)
* Fix: Product categories, Exclude Product Categories & Customer Email not copying during duplication of coupon
* Fix: Correction in text displayed when searching coupon from admin
* Tweak: Reduced one loop to display coupon on My Account page
* Tweak: Showing & hiding Smart Coupons' field correctly
* Update: Moved Smart Coupons settings in new tab under WooCommerce > Settings
* Update: Added more settings related to Smart Coupons
* Update: Added image representation for some settings related to Smart Coupons
* Update: Minor CSS change to highlight fields coming from Smart Coupons plugin
* Update: Minor change in admin UI of "Bulk Generate" tab under WooCommerce > Coupons
* Update: Split "Import Coupons" from "Bulk Generate" to create a new tab "Import Coupons"
* Update: Importing of coupons will be handled from "Import Coupons" tab under WooCommerce > Coupons
* Update: Link WordPress Admin > Tools > Import > WooCommerce Coupons to "Import Coupons" tab under WooCommerce > Coupons
* Update: Revamp of "Send Store Credit" UI, added currency symbol, added validation, added TinyMCE editor for message
* Update: Introduction of "Preview Email" under WooCommerce > Coupons > Send Store Credit
* Update: Revamp of Import Coupons UI
* Update: Remove mapping fields & introduce file validation during import of coupons
* Update: Use of $wpdb->prepare for direct queries to database
* Update: sample.csv file, inclusion of subscription discount type
* Update: Added 'id' to emails getting sent from this plugin
* Update: Removed "Individual Use" settings from storewide settings of Smart Coupons
* Update: Introduction of "Invalid / Used Coupons" block on My Account > Coupons (hidden by default)
* Update: Provision to remove "Coupons" tab from My Account page
* Update: Minor correction in texts received via email with coupon
* Update: Export selected coupons
* Update: PHP Compatibility (version 5.3-7.1)
* Update: Added wpml-config.xml file
* Update: POT File
* Cleanup: Removed unrequired jQuery code & changes in method name related to removed fields
* Cleanup: Removed unused global $woocommerce
* Cleanup: Update of text domain in few old files

* Fix: Manual application of store credit to order (from admin panel) fails
* Fix: Call to member function 'get_applied_coupons' on null
* Update: Processing of Smart Coupons on more WooCommerce order statuses
* Update: POT File