v1.0.0-beta

This release has *many* breaking changes. When you upgrade, make sure everything works as expected.

Largest changes:

* removes `jQuery` dependency and uses JavaScript class constructor to initialize
* bundles all CSS directly into the `card.js` file, removing the need to do another CSS `link` include

Smaller changes:

* `.card` class is switched to `.jp-card` and all other classes are prefixed
* removes jQuery style shortcuts for setting `values` and `messages`
* removes character restriction in credit card name input
* adds `jquery.card.js` file which is a jQuery plugin for Card

I'd appreciate any and all feedback on the changes - if you see any errors, please report them!