updates to current
adds validation that makes sure zipcode is valid before trying to run shipping location
Merge pull request #7 from shanghaiellen/shipping

adds validation that makes sure zipcode is valid before trying to run sh...
changed render to redirect_to
fixes my routing mistake
adds route I forgot in purchases controller
omg some day i will get this stupid path right
Merge pull request #8 from shanghaiellen/shipping

Shipping
merge conflict resolved