Importer
keystone.importer(relativeDirName:String)
Returns a function that imports all javascript files in a directory, using the passed in directory as the relative path from which to make the search.
Example:
var importRoutes = keystone.importer(__dirname);
var routes = {
views: importRoutes('./views'),
};
exports = module.exports = function (app) {
app.get('/', routes.views.index)
};