title: Avoiding "app" folder in Brunch
body: <p>I want to use Brunch in a project with this structure:</p>
  
  <pre><code>root/        
  |-src/ 
  |--assets/ 
  |---js/ 
  
  |-bower_components/ 
  |--...stuff... 
  
  |-dist/      
  |--...output stuff... 
  
  |-bower.json  
  |-package.json 
  |-config.coffee 
  </code></pre>
  
  <p>Nevertheless, it seems that Brunch is ignoring anything is outside the "app" directory.
  In other world, it does not work:</p>
  
  <pre class="lang-coffee prettyprint-override"><code>  conventions:
      assets: /src\/assets\//
    paths:
      public: 'dist'
      watch: ['src']
    files:
      javascripts:
        joinTo:
          'dist/output.js': /^src\/js/
  </code></pre>
  
  <p>There is an option to set the name of the "app" folder?</p>
  
  <p>My environment: Brunch 1.8.7, Node 0.12.2, Windows 7</p>
  
  <p>Thank you in advance</p>