Darken .top-bar .active links in dropdowns

The active highlighting wasn't standing out enough on the active links
in the dropdowns.
Add TODO for favicon

We replaced the favicon with a todo. It's better to leave the favicon
out than have the connect module's icon on every site where we forget
about it.
Add node-compound description
Add very basic version of starting template
Add first version of README.md

We copied this from the node-express README. It still needs some
sections updated, but we can't do those until we have actually
implemented their features in out Compound site.