added a function to pad a number with zeros. waiting for the helpers to land into
the main mustache.js repo to use it in the number display.
{{! the template for the small white bars which is z-indexed over our segment widget }}
<div class='positionMarker' style='position: absolute; z-index: 100; width: 1px; height: 20px; background-color: white;'>
</div>