 explicitly require nunjucks so we can use npm link
 explicitly require nunjucks so we can use npm link

fractal has problems loading the required path if we use the name, so pass the full require in

also moved module.exports to the bottom so they are always in the same place and easy to find

alphagov/govuk_frontend_alpha,alphagov/govuk_frontend_alpha,alphagov/govuk_frontend_alpha