Django-simple-coupons

- Creating useful actions for the Coupon and CouponUser admins
- Adding coupon.get_discounted_value(initial_value=<int/float>) method

- DSC_USER_MODEL is now deprecated; User model will be defined from AUTH_USER_MODEL in settings.py

- Updating documentation
- Adding coupon.get_discount() method

- Hotfix: Adding migrations folder in project

- Initial Release