Checkout for WooCommerce - CheckoutWC 9.1.8

Fix - Fix fatal error on order pay page

Hotfix - Fix bug that caused mobile payment icon CSS to output at the top of the page.

Fix - Fix issue with address formatting in address review sections
Fix - Fix potential issue that could reset breadcrumb color settings during plugin activation
Fix - Fix PHP version notice
Dev - Get rid of unused compatibility classes
Dev - Update tested version numbers