HubSpot/odometer — pull request #60 by EvanPurkhiser (2014-06-18 07:26:41+00:00)
Title: Correct check for global `exports` for commonJS and Browserify

```coffee
typeof exports is not 'undefined'
```

Translates into:

```js
(typeof exports === !'undefined')
```

Definitely not what we want.

Instead, using [`exports?`](http://stackoverflow.com/a/10238211/790169) which will properly translate to...

```js
(typeof exports !== 'undefined' && exports !== null)
```