Update to version 1.7.1

- New: Significant performance improvements
- New: Added hook for for loading the receipt page
- New: Added PHP helper function to programmatically retrieve order data
- New: Embedded the secure Cart66 Cloud console in the WordPress plugin so you can do everything without ever leaving WordPress.
- Updated: Logging in to the secure customer portal now redirects the visitor to the member home pages as defined in the WordPress plugin settings.
- Updated: Improved synchronization between the logged in status between the secure cloud and WordPress.
- Fixed: Stop duplicating physical page slurp template when changing page slurp mode back to virtual page