Fixed styling on nav selectors.
Fixed minor styling problem with nav selectors.
Fixed styling error on central landing page.

Each carousel picture had a small bullet point from its containing li.
FAQ styling and usability improvements.

Improved spacing between questions, made questions on the topic-detail
pages into links, fixed header styling to complement other styling changes.
Hid inactive questions and empty topics.

Now inactive questions and topics with no questions are not displayed.