Change the font-smoothing from antialiased to subpixel rendering.

The antialiased mode is generally less good at rendering fine or sharp edged fonts than with subpixel rendering.

Subpixel on top, bottom is the current setting. 

![zurb](https://f.cloud.github.com/assets/1137376/442050/a7298ddc-b134-11e2-821b-802539a765cb.png)