adding money_helper
fixing conditional validation for orderitems
adding redirect for checkout if order not yet created
trying to add a validation for checkout
restructuring checkout so order save happens after checkout
light refactoring
changing cart t/f for checkout cart-summary
some validations working
validations slightly more functional now
Merge branch 'master' into checkout-validations
Merge pull request #19 from ricarora/checkout-validations

Checkout validations