title: single RequireJS optimizer file for multiple directory project
body: <p>I'm wondering if it's possible to configure the RequireJS optimizer to fit with our current project structure.</p>
  
  <p>The site directory is structured as below...</p>
  
  <ul>
  <li>root
  <ul>
  <li>project1
  <ul>
  <li>scripts
  <ul>
  <li>main.js</li>
  <li>main.min.js</li>
  </ul></li>
  </ul></li>
  <li>project2
  <ul>
  <li>scripts
  <ul>
  <li>main.js</li>
  <li>main.min.js</li>
  </ul></li>
  </ul></li>
  <li>project3
  <ul>
  <li>scripts
  <ul>
  <li>main.js</li>
  <li>main.min.js</li>
  </ul></li>
  </ul></li>
  </ul></li>
  </ul>
  
  <p>I was wondering if it's possible to have a "main" file sitting at the root level that will optimize all the child project main.js files and place them within their respective directories.  I noticed the multi-page optimizer example on the Requirejs homepage but i'm unsure how to configure that to work for my use case.</p>