Renable minification

lib/metalsmith.js

@@ -16,7 +16,7 @@ const postcss = require('metalsmith-postcss')
 const rollup = require('metalsmith-rollup') // used to build GOV.UK Frontend JavaScript
 const resolve = require('rollup-plugin-node-resolve') // rollup plugin to resolve node_modules
 const commonjs = require('rollup-plugin-commonjs') // rollup plugin to convert CommonJS modules to ES2015
-// const uglify = require('metalsmith-uglify') // minify the JavaScript assets to reduce time it takes to download
+const uglify = require('metalsmith-uglify') // minify the JavaScript assets to reduce time it takes to download
 
 // const debug = require('./debug')                          // debug plugin
 const navigation = require('./navigation.js') // navigation plugin
@@ -170,20 +170,20 @@ module.exports = metalsmith(__dirname) // __dirname defined by node.js: name of
     ]
   }))
 
-// minify the JavaScript assets to reduce time it takes to download
-// .use(uglify({
-//   uglify: {
-//     ie8: true
-//   },
-//   sameName: true, // overwrite the original files, with the minified ones.
-//   files: [
-//     'javascripts/application-ie8.js',
-//     'javascripts/application.js',
-//     'javascripts/head-ie8.js',
-//     'javascripts/govuk-frontend.js',
-//     'javascripts/example.js'
-//   ]
-// }))
+  // minify the JavaScript assets to reduce time it takes to download
+  .use(uglify({
+    uglify: {
+      ie8: true
+    },
+    sameName: true, // overwrite the original files, with the minified ones.
+    files: [
+      'javascripts/application-ie8.js',
+      'javascripts/application.js',
+      'javascripts/head-ie8.js',
+      'javascripts/govuk-frontend.js',
+      'javascripts/example.js'
+    ]
+  }))
 
   // add hash to files
   .use(hashAssets({