uc_coupon 6.x-1.1

Changes since 6.x-1.0:

Products and users are now selected from autocomplete text fields.
Coupons can be applied to product classes as well as individual products.
Coupons can be restricted to roles as well as individual users.
Products selection can be exclusive rather than inclusive.
Error messages are more helpful when a coupon cannot be applied.
Limit year fields to 2008-2020.
#265475: Apply Coupon to Specific Products
#262137: Single use per customer
#389962: Page not updating when I click "Apply Coupon"
#391612: Order status selection in coupon usage report

The coupon database tables have changed, so you will need to run update.php after installing.