chore: prepare 4.0.1 release

.travis.yml

@@ -6,7 +6,6 @@ git:
 branches:
   only:
     - master
-    - /^greenkeeper/.*$/
 
 language: node_js
 
@@ -18,9 +17,12 @@ cache:
 
 matrix:
   include:
-    - node_js: '8'
+    - node_js: '9'
       script: npm run pretest
       env: CI=pretest
+    - node_js: '9'
+      script: npm run test-only
+      env: CI=tests 8
     - node_js: '8'
       script: npm run test-only
       env: CI=tests 8

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](http://semver.org).
 
+## 4.0.1 - 2018-02-13
+
+- Build: add `node@9` to travis CI.
+- Chore: minimum required `modernizr` version is now `^3.5.0`.
+- Chore: support `webpack` v4.
+
 ## 4.0.0 - 2017-08-25
 
 - Changed: configuration loading behaviour. See `README.md`.
@@ -16,7 +22,7 @@ This project adheres to [Semantic Versioning](http://semver.org).
 
 ## 3.0.0 - 2017-02-27
 
-- Fixed: minimum required loader-utils version is now ~1.0.0.
+- Fixed: minimum required loader-utils version is now `~1.0.0`.
 - Removed: support `webpack` version `1`.
 
 ## 2.0.0 - 2017-02-01

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2017 itgalaxy inc.
+Copyright (c) 2017-2018 itgalaxy inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal