BUG: coupon expiry checks were based on 'today', and 'yesterday', rather than 'now'.
BUG: coupon expiry checks were based on 'today', and 'yesterday', rather than 'now'.

IgorNadj/silverstripe-shop-discount,burnbright/silverstripe-shop-discount,markguinn/silverstripe-shop-discount,IgorNadj/silverstripe-shop-discount,markguinn/silverstripe-shop-discount,burnbright/silverstripe-shop-discount