This is the "base-2014" theme for Bolt. It is built with Foundation 5 and Sass, but you can use it as-is.
To install manually, go to theme/ and do a checkout:
git clone https://github.com/bolt/base-2014.git
Set theme: base-2014 in your app/config/config.yml, and you're good to go!
If you wish to modify this theme using Sass, be sure to install the 'Foundation' bower module, and start your favorite Sass parser, for example 'grunt':
bower install
npm install
grunt watch
If you could use some pointers to get started with node, grunt and bower in combination with Foundation, I recommend these links: