chore(gulp): update imagemin

Author: Awk34

Diff for: templates/app/_package.json

@@ -56,7 +56,7 @@
     "gulp-concat": "^2.6.0",
     "gulp-env": "^0.4.0",
     "gulp-filter": "^4.0.0",
-    "gulp-imagemin": "^2.2.1",
+    "gulp-imagemin": "^3.0.1",
     "gulp-inject": "^4.0.0",
     "gulp-istanbul": "~0.10.3",
     "gulp-istanbul-enforcer": "^1.0.3",

Diff for: templates/app/gulpfile.babel(gulp).js

@@ -637,11 +637,12 @@ gulp.task('constant', function() {
 
 gulp.task('build:images', () => {
     return gulp.src(paths.client.images)
-        .pipe(plugins.imagemin({
-            optimizationLevel: 5,
-            progressive: true,
-            interlaced: true
-        }))
+        .pipe(plugins.imagemin([
+            plugins.imagemin.optipng({optimizationLevel: 5}),
+            plugins.imagemin.mozjpeg({progressive: true}),
+            plugins.imagemin.gifsicle({interlaced: true}),
+            plugins.imagemin.svgo({plugins: [{removeViewBox: false}]})
+        ]))
         .pipe(plugins.rev())
         .pipe(gulp.dest(`${paths.dist}/${clientPath}/assets/images`))
         .pipe(plugins.rev.manifest(`${paths.dist}/${clientPath}/assets/rev-manifest.json`, {