Optimize svg

Not a big win, but it looks like the updated version of our svg optimiser has gotten better.

## Before

Metrics for static/target/stylesheets/global.css

> File size: 189.79 KB
> GZip size: 45.90 KB

## After:

Metrics for static/target/stylesheets/global.css

> File size: 187.56 KB
> GZip size: 45.13 KB

![ ](http://4.bp.blogspot.com/-hYtulJ9dARI/UuXzhozCoMI/AAAAAAABFfw/4Kqo8MgwhU0/s1600/this-is-so-cool.gif)