seed template v2.1.1

🎉 Add default favicon
✨ Set favicon from static folder
🔖 Update vue-i18n version
🐛 FIX 404 error with from devMiddleware
✨ Move favicon into assets folder
🐎 Remove favicon link (init from HtmlWebpackPlugin)
🐎 Init favicon from HtmlWebpackPlugin
✨ Import favicon
🔖 Update version number