Fix:
1)Payment method is empty in order confirm mail.
2)Coupon discount is missing in payment step.
3)Picture name in unicode can not be fetched.
4)On some servers may encounter the Zencart is not installed error.
5)On some servers the product images are missing on Cart page.
Improve:
1)Better compatibility with shipping fee calculation extensions.
2)Virtual product order support
3)Improve guest checkout logic.
4)Add OAuth login support.