Update RS web presence to be more 21st century

Update the web site to be more in the style of

• Hue website: http://gethue.com/
• Kudu website: http://getkudu.io/

This is actually a marketing task, so I've asked Steve Ross to get some guidance from our product marketing team on how to proceed and divide the responsibilities. (I'm happy to do the whole thing, but I respect the role of marketing in the success of the product.)