Regression 

<h2>Summary</h2>
+ Physics Preface Header Styling
+ Sociology Preface Header Styling

<h3>Testing</h3>
+ Bio: http://naginata.cnx.rice.edu:9090/content/col10001/latest/
+ Physics: http://naginata.cnx.rice.edu:9090/content/col10003/latest/
+ Soc: http://naginata.cnx.rice.edu:9090/content/col10004/latest/

<h4>Known Issues</h4>
+ Physics/Sociology: preface page header missing "Preface"
+ Sociology: table captions do not render for some tables