Added ability to exclude name attribute to stop submit for PCI complicance

Added new "submit" option that when set to false will not add the name attribute into the input.
Refactored to extend form new InputWidget class.

BC Changed CreditCardModel to CreditCard

1. Breaking change CreditCardModel => CreditCard
2. Bug fixes

Altered to use as input widget in ActiveField

Altered to use as input widget in ActiveField

For yii2-braintree integration

Adds credit card number, expiry, and cvc

Simplified version

Removed some over complicated options, and added CreditCardModel. Attributes and model name are now fixed, and there is no one to muck up the field id's.

Initial release

Initial release. The following features are included in this release:

1. Yii2 Bootstrap 3 component, providing client validated and masked credit card number, expiry and cvc code fields with credit card icon changing to match credit card type when detectable.
2. Uses client validation courtesy of Stripe (https://github.com/stripe/jquery.payment) and works with validation in ActiveForm to show errors and success