Add queryParam serialization to `navigate`

Pass in the `queryParams` option that will be parsed into a queryString
and added to the navigated uri:

`Aviator.navigate('/users', { queryParams: { filter: [1,2] }});`
will navigate to `"/users?filter[]=1&filter[]=2"`
Merge pull request #21 from swipely/navigate_with_query_params

Add queryParam serialization to `navigate`