code: function getSite(host, path) {
    // note: uses the memoized version
    return _.find(module.exports.sites(), function (site) {
      return site.host === host && site.path === path;
    });
  }
docs: get site config that matches a specific host + path
  @param {string} host
  @param {string} path (make sure it starts with a slash!)
  @returns {object}