title: grunt-contrib-sass: How do I add a subfolder into the destination dynamically?
body: <p>I have a directory structure of:</p>
  
  <ul>
  <li><code>views</code>
  
  <ul>
  <li><code>_static_</code>
  
  <ul>
  <li><code>some.js</code></li>
  </ul></li>
  <li><code>somesass.scss</code></li>
  <li><code>something.jade</code></li>
  </ul></li>
  </ul>
  
  <p>I was hoping to do something like this:
  <code>
      sass: {
        dist: {
          options: {
            style: 'expanded'
          },
          files: [{
            expand: true,
            cwd: 'views',
            src: ['*/*.scss'],
            flatten: true,
            dest: 'views/*/_static_',
            ext: '.css'
          }]
        }
      },
  </code></p>
  
  <p>If I just do <code>dest: 'views'</code> and remove <code>flatten:true</code> then it, at least, puts it in the same folder the .scss file is in, but I can't figure out how to say "ok, add '<code>_static_</code>' to the cwd of the current file and place the .css in there." How/can I do that with grunt-contrib-sass?</p>
  
  <p>If wondering why I'm not just throwing all the compiled CSS into one directory, it's because this is for an experimentation server for myself, so I'm not minifying or anything.</p>