Replace the diamond / swiper pagination bullets

[billmccord]

The bullets that are used to move between different 'Predictive Analytics', 'Data visualizations', and 'Data applications' are not intuitive. The fact that you can use the mouse to swipe between them is also hard to discover (I just discovered it today by accident.) We should rethink the usability of these elements of the site. At the very least, we should make the diamond bullets into something that looks clickable to indicate that people can interact with them.