define area container

If area are empty sometine we need to remove some wrapper tag. Exemple : you need a box arround you area, but if the are is empty the box must be removed.

html

<div class="row" id="footer-container">
   <div class="box">
         <div class="col-lg-12" id="footer">
               ....
        </div>
    </div>
</div>

file "config.properties"

...
area-container.footer = footer-container
area.footer = footer
...