* Fix - Ensure the CSC field is validated when Hosted Tokenization is enabled
* Fix - Prevent card expiration errors when using Hosted Tokenization and saved cards
* Fix - Only allow supported US test accounts when Hosted Tokenization is enabled
* Tweak - Add payment details to the customer data export and remove it for erasure requests
* Tweak - Remove payment tokens for customer data erasure requests
* Misc - Add support for WooCommerce 3.4
* Fix - Fix potential admin notices for certain gateway settings configurations
* Misc - Add support for WooCommerce 3.3
* Misc - Remove support for WooCommerce 2.5
