Merge branch 'rb-shipments-with-rates-on-orderable-form' of https://github.com/andrewrhee/marketplace
Merge branch 'master' of https://github.com/andrewrhee/marketplace
Change sell item to redirect to listings#new
One page listing

* Add credit card form
* Add verification step
* Add migration for verification_requested
Handle no charge when there is no credit card
Merge pull request #5 from andrewrhee/seller

One page seller form