Small tweaks

Mostly to the Cordray bio page. @jameshupp, this addresses your suggestion re: "Request speaking info". I'm just going to keep that whole section visible.

Also I made a tweak to the `.expandable_header__jump-link` modifier @virginiacc. The change inf font-size for the `.expandable_link` from 14px to 16px was causing a little bit unwanted space at the bottom. Also I figure it's better to be consistent with the font-size for expandable icons than the font size used in jump link icons.

Before:
![image](https://cloud.githubusercontent.com/assets/1093373/4445633/017825d8-47fb-11e4-8409-1f23c7831c3a.png)
After:
![image](https://cloud.githubusercontent.com/assets/1093373/4445667/53c2ddd8-47fb-11e4-8ff1-38beb0b64f1c.png)
It doesn't bother me, but just to clarify: I didn't mean to suggest that we _always_ put each class on a new line, only when the list of classes would make the line too long. I'd be fine saying that we leave them on one line when it works. But I wouldn't terribly mind saying that we always want to do this, either. It would make things maximally consistent.