Table styling

This implements a new table stylesheet:

![screen shot 2014-09-29 at 18 23 41](https://cloud.githubusercontent.com/assets/58855/4443950/a5be6b34-47ec-11e4-9f7f-bfd248383882.png)

Of note, the existing tables will need rebuilding, as they use multiple nested tables and inline styles and unordered lists