Swap CVV and Expiration fields

[raitisg]

Because CVV field is the only field on the other side of most cards, user has to flip his card 1 time more that he would if CVV was the last required field.

[wangjohn]

This is a good idea. One thing that I've been working on is themes, and I'll have a bunch of different possible credit card forms with different css styling and html structure. I'll use this as one of them.