OrgModeConverter.rb

require 'org-ruby'

module Jekyll
  class OrgModeConverter < Converter
    safe true

    priority :low

    def matches(ext)
      ext =~ /org/i
    end 

    def output_ext(ext)
      ".html"
    end

    def convert(content)
      Orgmode::Parser.new(content).to_html
    end
  end
end