UPGRADE 3.1

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_discount_coupon/trunk@5062 950b781c-c544-efab-2f99-90083ee69683
git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_discount_coupon/trunk@5063 950b781c-c544-efab-2f99-90083ee69683
MINOR

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_discount_coupon/trunk@5071 950b781c-c544-efab-2f99-90083ee69683
adding permissions

git-svn-id: https://silverstripe-ecommerce.googlecode.com/svn/modules/ecommerce_discount_coupon/trunk@5085 950b781c-c544-efab-2f99-90083ee69683