Fixes #110 Discount Coupon exception to exclude specials and sales
Merge pull request #111 from ajeh/discount-coupons

Fixes #110 Discount Coupon exception to exclude specials and sales
Fixes #113 missing echo
Merge pull request #114 from ajeh/fixcouponadmin

Fixes #113 missing echo
Merge pull request #82 from zencart/v160

zc160