update dependencies

Author: tschortsch

.travis.yml

@@ -1,7 +1,6 @@
 language: node_js
 node_js:
-  - '7'
-  - '8'
+  - '10'
 sudo: false
 before_install:
   - npm install -g gulp

gulpfile.js

@@ -32,7 +32,7 @@ gulp.task('scripts-fontawesome', function() {
         .pipe(gulp.dest('./assets/js/fontawesome/packs'));
 });
 
-gulp.task('scripts', ['scripts-website', 'scripts-fontawesome']);
+gulp.task('scripts', gulp.series(gulp.parallel('scripts-website', 'scripts-fontawesome')));
 
 gulp.task('lint', function() {
     return gulp.src(['./assets/js/scripts.js','./assets/js/fontawesome/packs/custom.js'])
@@ -60,5 +60,5 @@ gulp.task('bootlint', function() {
         .pipe(bootlint());
 });
 
-gulp.task('default', ['lint', 'sass-lint', 'bootlint']);
-gulp.task('travis', ['lint', 'sass-lint', 'bootlint']);
+gulp.task('default', gulp.series(gulp.parallel('lint', 'sass-lint', 'bootlint')));
+gulp.task('travis', gulp.series(gulp.parallel('lint', 'sass-lint', 'bootlint')));

package.json

@@ -7,15 +7,15 @@
     "url": "git://github.com/tschortsch/tschortsch.github.io.git"
   },
   "devDependencies": {
-    "gulp": "^3.9.1",
-    "gulp-autoprefixer": "^5.0.0",
-    "gulp-bootlint": "^0.9.0",
+    "gulp": "^4.0.2",
+    "gulp-autoprefixer": "^6.1.0",
+    "gulp-bootlint": "^0.11.0",
     "gulp-jshint": "^2.1.0",
-    "gulp-rename": "^1.2.2",
-    "gulp-sass": "^4.0.1",
-    "gulp-sass-lint": "^1.3.4",
-    "gulp-uglify": "^3.0.0",
-    "jshint": "^2.9.5"
+    "gulp-rename": "^1.4.0",
+    "gulp-sass": "^4.0.2",
+    "gulp-sass-lint": "^1.4.0",
+    "gulp-uglify": "^3.0.2",
+    "jshint": "^2.10.2"
   },
   "scripts": {
     "test": "gulp travis",