Improve Documentation Pages

My primary goal is to the documentation up because the cookbook is too big now. Adding an overview and FAQ section will be less intimidating for new users, and can reduce the size of the cookbook.

Work in progress is in: /dev/website

Doing this well requires refactoring the cookbook for better page generation #639

How to Ask for Help?

Also add a section to the website letting users know how to ask for help. Maybe basic usage questions could be asked on stack overflow, but true issues and bug reports could be discussed here?