$ sudo apt-get install ruby1.9.1-dev zlib1g-dev nodejs
$ sudo gem install jekyll
$ bundle install
References:
- http://jekyllrb.com/docs/troubleshooting/
- http://www.nokogiri.org/tutorials/installing_nokogiri.html
- jekyll/jekyll#2327
- Not happy about the NodeJS install, but ¯\(°_°)/¯