krisleech/jQuery-Character-Counter — pull request #1 by karyboy (2013-03-04 15:09:37+00:00)
Title: add a class if character limit exceed's 

add a class if the character count exceeds the limit.
For example,
If we want to change the color of couter_label to red when limit exceeds,

we can have a class
```css
.limit{
color:red
}
```

we call the counter function with options
```javascript
$('textarea[data-max-length]').counter({'limitExceedClass':'limit'});
```