wangjohn/creditly — pull request #9 by gyugyu (2014-10-21 08:34:29+00:00)
Title: Allow to pass null as cvvSelector, cardTypeSelector parameter

TypeError is thrown when null is passed as cvvSelector.
So, allow to pass null as cvvSelector and cardTypeSelector parameter.

```javascript
var creditly = Creditly.initialize(
'.creditly-wrapper .expiration-month-and-year',
'.creditly-wrapper .credit-card-number',
null,
'.creditly-wrapper .card-type'
);
```