title: Nested array in URL params
body: <p>Hi I would like to make the following work:</p>
  
  <pre><code>http://localhost:3000/reviews/new?ticket[]=token[]=109u11
  </code></pre>
  
  <p>It can be thought of as meaning <code>params[:ticket][:token] = 109u11</code></p>
  
  <p>Thanks!</p>