oct2-orangeプラグイン
https://github.com/roberto/oct2-orange/blob/master/source/index.html
git submodule add git://github.com/roberto/oct2-orange.git .themes/oct2-orange
rake install[oct2-orange]
nav.html を_config.ymlへ追加する。
default_asides: [asides/nav.html, asides/recent_posts.html ....
3rd Party Octopress Themes
https://github.com/imathis/octopress/wiki/3rd-Party-Octopress-Themes