mobify/scooch — pull request #14 by ericmuyser (2014-03-13 17:54:39+00:00)
Title: Next and prev functions should be optional

@stewartyu @tedtate

Basic loop usage:

```js
$carousel.scooch({
next: function() {
var index = this._index + 1;

if(index > this._length) {
index = 1;
}

this.move(index);
},
prev: function() {
var index = this._index - 1;

if(index == 0) {
index = this._length;
}

this.move(index);
}
});
```

Basic jumping:

```js
$carousel.scooch({
next: function() {
this.move(this._index + 2);
},
prev: function() {
this.move(this._index - 2);
}
});
```