Add 'Stanford Fancy' SoA 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)

What if we change the method name to '_generate_v3_dynamic_cert()' and the configuration tag to something like '3-fancy'? Then the template_dir will be constructed as v3-fancy, which will look nice. It also makes it clear that this would be useful to other people.