usablica/intro.js — pull request #347 by borjacampina (2014-10-02 08:10:10+00:00)
Title: onexit receives last visited stepnumber as an argument

Callback to exit of intro receives the last visited step number as an argument.

```javascript
introJs().onexit(function(stepNumber) {
alert("exit of introduction on step "+ stepNumber);
});
```