Cleaning up Atmo heading levels.
Moving route FAQ to bottom, it was in a random spot.
Renaming actions page title.
GzipSupport is not *that* exciting.
Added standard example link to Atmo guide.
Re-jigged ScalaTest guide.
Linking Specs2 Quickstart properly.
Added file upload test example to Spec2 guide.
Adding an unlinked ScalatraTest page as a home for this content.

It's not currently clear to me where this should live.
Adding content to ScalatraTest page.
Fixing file upload title.
Streamlining.
Smoothing.
Documented all Scalatra keys and their alternate forms.