Add v3 dynamic cert template and logic

@jrbl - Stanford Fancy SoA changes

Includes fancy autoscale and centering code.

![stanford_soa](https://cloud.githubusercontent.com/assets/3364609/5308628/e1473810-7bcd-11e4-9d49-cae2b9af24cb.png)

Also I think autoscale is better than autofit, because you can fit things by making the container bigger, but autoscale suggests that we're fitting specifically by adjusting the text's size.