title: How to add a controller-specific javascript from vendor/assets/javascripts using javascript_include_tag?
body: <p>I have in rails project and a view <code>new.html.slim</code>:</p>
  
  <p>I tried following:</p>
  
  <pre><code>= javascript('app/vendor/assets/javascripts/handelbars.runtime.js')
  = javascript('../../../vendor/assets/javascripts/handelbars.runtime.js')
  = javascript('./vendor/assets/javascripts/handelbars.runtime.js')
  </code></pre>
  
  <p>But still getting <code>404 Not Found</code> for <code>handelbars.runtime.js</code></p>
  
  <p>What is the right path for all <code>vendor/assets/javascripts/</code> libraries?</p>
  
  <p>I wouldn't include <code>handelbars.runtime.js</code> in application.js</p>
  
  <h1>Update:</h1>
  
  <p>If I look into the path in browser:</p>
  
  <pre><code>http://localhost:3000/javascripts/vendor/assets/javascripts/handelbars.runtime.js
  </code></pre>
  
  <p>But I get also:</p>
  
  <pre><code>Routing Error
  No route matches [GET] "/javascripts/vendor/assets/javascripts/handelbars.runtime.js"
  </code></pre>
  
  <p>Also just to test:</p>
  
  <pre><code>Routing Error
  No route matches [GET] "/vendor/assets/javascripts/handelbars.runtime.js"  
  </code></pre>