feat(umd): build will now generate two umd bundles

one *.umd.js and a *.umd.min.js as per
comments

generators/app/templates/_package.json

@@ -42,6 +42,7 @@
     "gulp": "^3.9.1",
     "gulp-rename": "^1.2.2",
     "gulp-rollup": "^2.11.0",
+    "gulp-uglify": "^3.0.0",
     "jasmine-core": "~2.5.2",
     "jasmine-spec-reporter": "~3.2.0",
     "karma": "~1.4.1",
@@ -54,8 +55,8 @@
     "node-sass-tilde-importer": "^1.0.0",
     "node-watch": "^0.5.2",
     "protractor": "~5.1.0",
+    "pump": "^1.0.2",
     "rollup": "^0.41.6",
-    "rollup-plugin-uglify": "^2.0.1",
     "run-sequence": "^1.2.2",
     "rxjs": "^5.1.0",
     "ts-node": "~2.0.0",

generators/app/templates/gulpfile.js

@@ -3,11 +3,12 @@ var gulp = require('gulp'),
   path = require('path'),
   ngc = require('@angular/compiler-cli/src/main').main,
   rollup = require('gulp-rollup'),
+  uglify = require('gulp-uglify'),
+  pump = require('pump'),
   rename = require('gulp-rename'),
   del = require('del'),
   runSequence = require('run-sequence'),
-  inlineResources = require('./tools/gulp/inline-resources'),
-  uglify = require('rollup-plugin-uglify');
+  inlineResources = require('./tools/gulp/inline-resources');
 
 const rootFolder = path.join(__dirname);
 const srcFolder = path.join(rootFolder, 'src');
@@ -137,19 +138,21 @@ gulp.task('rollup:umd', function () {
       // See https://github.com/rollup/rollup/wiki/JavaScript-API#globals
       globals: {
         typescript: 'ts'
-      },
-
-      // https://github.com/TrySound/rollup-plugin-uglify to uglify the .umd
-      // For all the options you can have a look at
-      // https://github.com/mishoo/UglifyJS2#api-reference
-      plugins: [
-        uglify()
-      ]
+      }
     }))
     .pipe(rename('<%= props.libraryName.kebabCase %>.umd.js'))
     .pipe(gulp.dest(distFolder));
 });
 
+gulp.task('uglify', function (cb) {
+  pump([
+    gulp.src(`${distFolder}/<%= props.libraryName.kebabCase %>.umd.js`),
+    uglify(),
+    rename('<%= props.libraryName.kebabCase %>.umd.min.js'),
+    gulp.dest(distFolder)
+  ], cb);
+});
+
 /**
  * 7. Copy all the files from /build to /dist, except .js files. We ignore all .js from /build
  *    because with don't need individual modules anymore, just the Flat ES module generated
@@ -198,6 +201,7 @@ gulp.task('compile', function () {
     'ngc',
     'rollup:fesm',
     'rollup:umd',
+    'uglify',
     'copy:build',
     'copy:manifest',
     'copy:readme',