This is the home of the Scalatra website which generates the site at http://scalatra.org/2.2/.
To build it, you'll need to have Ruby and bundler installed.
Then you'll need Jekyll and a
few other things installed on your system. cd into the root directory
of the project and type:
bundle install
This will download the project's rubygem dependencies.
Note: on recent LLVM-favoring versions of Mac, you will need to install gcc.
Once everything's installed, you can do this to generate the documentation:
jekyll --server --auto
This will start an embedded webserver and automatically regenerate the website as you make changes to it. You can then view the site at http://localhost:4000/2.2/.