Jd textstyles again

Just some tightening up of certain styles from the last few months.

1.) Simplified Typography hierachy

![image](https://cloud.githubusercontent.com/assets/1341391/5378407/e495710e-8081-11e4-84d2-190819e78e31.png)

2.) Subnavigation redux

![image](https://cloud.githubusercontent.com/assets/1341391/5378413/f0e92446-8081-11e4-8a2c-3f1318442dda.png)

3.) Body copy alterations

![image](https://cloud.githubusercontent.com/assets/1341391/5378439/26cfabde-8082-11e4-986e-674c58c65fd3.png)

4.) Some style guide template cleanup

![image](https://cloud.githubusercontent.com/assets/1341391/5378456/39c96dc4-8082-11e4-95e1-50095d0b64a6.png)

5.) Left navigation clean up; less loud active state

![image](https://cloud.githubusercontent.com/assets/1341391/5378468/4a2b7572-8082-11e4-9e69-c0f88396c3ba.png)
Are these just for the article captions? If so, they should be in waldorf or we should have them somewhere else. That caption style of text is used elsewhere for items that have a similar style (maybe we should rename it too)