Made reg errors more prominant
Confirm now calls applyCoupons, added some phpDocs, and fixed the identity update on merchOrders to not output an error
Added 'dirty' flag to coupon functions to reduce unneeded queries.  Also added some comments about confirm/checkout
Added debug
Fixed button link colour (when it was a a href)
Fixed lookup error message
Fixed payZero, added addMayobuck action since we don't have a store to choose from