title: Skip a full directory with yaml in Google Cloud
body: <p>I try to skip a directory with yaml in Google Cloud, my app.yaml is:</p>
  
  <pre><code>runtime: php55
  api_version: 1
  threadsafe: true
  
  skip_files:
  - assets/
  
  handlers:
  - url: /.*
    script: index.php
  </code></pre>
  
  <p>But, it doesn't work, Do you know which is wrong in my code?</p>