title: No route matches POST when updating rails-api gem
body: <p>When I add this to my gem file ( rails 4.0.1 )</p>
  
  <pre><code>gem 'rails-api', git: 'https://github.com/rails-api/rails-api.git', branch: 'master'    
  </code></pre>
  
  <p>My routes seem to break (although rake routes is the same before/after)</p>
  
  <p>I get this after I attempt to update a simple scaffold model</p>
  
  <p><strong>No route matches [POST] "/surveys/1"</strong> when I update a record</p>
  
  <p>by commenting out this gem it works again - any ideas what I did wrong?</p>
  
  <p>thanks!</p>
  
  <p>PS: Adding this to gem file so I can use strong parameters to follow railscasts#196 in rails 4</p>