all new stuff

This is a pretty massive PR, with a whole lot of new design elements as well as some new content elements.

I've implemented a Bootstrap theme called [Agency](http://startbootstrap.com/template-overviews/agency) and have done a bit of tweaking to the design and content. We've also made sure that @steph10129 knows how to update the content, and she's got a bunch of commits in this PR as well.