Cleaned JS according to .jshintrc, fixed #35

Add latitude/longitude fields:

Returning value of `Faker.Helpers.createCard()` and `Faker.Helpers.userCard()` `address` field now contains `geo` dictionary of geo coordinates. Example:

```javascript
address: {
    city: "Hicklestad"
    geo: {
        lat: "56.4164",
        lng: "-91.0262"
    }
    street: "McGlynn Tunnel"
    suite: "Apt. 711"
    zipcode: "16496"
}
```