nervetattoo/backbone.touch — pull request #4 by neilkumar (2012-12-27 00:35:07+00:00)
Title:  Cannot read property 'document' of undefined

I'm seeing an error testing on Mobile Safari and desktop Chrome --

```
Uncaught TypeError: Cannot read property 'document' of undefined backbone.touch.js:34
```

The call to check if touch support is there is looking for a "this.document". Removing the "this" fixes it.