Merge from vendor branch TNF:

Merge from vendor branch TNF:
Import Jekyll as www/ruby-jekyll.

Jekyll is a simple, blog aware, static site generator. It takes a
template directory (representing the raw form of a website), runs it
through Textile or Markdown and Liquid converters, and spits out a
complete, static website suitable for serving with Apache or your
favorite web server. This is also the engine behind GitHub Pages,
which you can use to host your project's page or blog right here
from GitHub.