Coupon code to redeem badges or points

[danielpowney]

A potential extension with the following proposed functionality:

1. Add a widget and also a shortcode with a form to allow users to enter a coupon code to redeem badges or points
2. Easily add coupon codes in the backend (needs to be simple and easy for potentially entering hundreds of coupon codes manually)
3. Add a coupon as an assignment option (users receive coupons via e-mail and they need to login or click the link to redeem them)
4. Coupon can be redeemed X number of times and only once per user
5. Coupons can expire...
6. Add reCAPTCHA to the redeem coupon form
7. Ability in the backend to easily view coupon status. New Report menu option to see coupons that have been redeemed by users