standardize front-end gadgets output

[mkhahani]

This template is suggested as standard for a gadget output:

<div class="gadget $gadget $action $view">
  <h2>{title}</h2>
  <div class="gbody">
    <div class="gcontent">{content}</div>
    <div class="gactions">{actions}</div>
  </div>
  <div class="gfooter"></div>
</div>

Also we should find a way to use <h1> instead of <h2> for requested gadget.

[afz]

almost done