title: rails: javascript_include_tag renders an incorrect path
body: <p>I am trying to put a nested form into one of my views.  I have installed the nested_form Gem and performed the installation steps.  The last thing I did was edit my app/view/layouts/application.html.erb file to include this line</p>
  
  <pre><code>&lt;%= javascript_include_tag "nested_form" %&gt;
  </code></pre>
  
  <p>But when I look at the rendered page, the javascript doesn't work.  I examined the page source and saw that the rendered code for the nested_form javascript looks like this:</p>
  
  <pre><code>&lt;script src="/assets/nested_form.js" type="text/javascript"&gt;&lt;/script&gt;
  </code></pre>
  
  <p>So it appears to be looking in the wrong place.  That .js file is located in public/javascripts, not in assets.  Did I do something wrong or do I need to specify something else in that javascript_include_tag?</p>