dalekjs/dalek — pull request #138 by gskachkov (2014-09-14 10:18:26+00:00)
Title: Adding hasClass/dosntHaveClass asserion

This PR is related to following issue https://github.com/dalekjs/dalek/issues/128
In PR was added two method that allow to test if element contains/don't contains class

```javascript
test
.open('http://dalekjs.com/guineapig/')
.assert.hasClass('button.submit-product', 'plain-btn', 'button has plain-btn class')
.done();
```

```javascript
test
.open('http://dalekjs.com/guineapig/')
.assert.doesntHaveClass('button.submit-product', 'btn', 'button doesn't have btn class')
.done();
```