build(defaults): update to v1.6.0

.babelrc

@@ -5,7 +5,7 @@
       {
         "useBuiltIns": true,
         "targets": {
-          "node": "4.3"
+          "node": "4.8"
         },
         "exclude": [
           "transform-async-to-generator",
@@ -27,7 +27,7 @@
       "presets": [
         "env"
       ],
-      "sourceMap" : "inline",
+      "sourceMap": "inline",
       "plugins": [
         "transform-object-rest-spread"
       ]

.travis.yml

@@ -15,7 +15,7 @@ jobs:
       env: WEBPACK_VERSION=latest JOB_PART=test
       script: npm run travis:$JOB_PART
     - <<: *test-latest
-      node_js: 4.3
+      node_js: 4.8
       env: WEBPACK_VERSION=latest JOB_PART=test
       script: npm run travis:$JOB_PART
     - <<: *test-latest

appveyor.yml

@@ -11,14 +11,15 @@ environment:
     - nodejs_version: '6'
       webpack_version: latest
       job_part: test
-    - nodejs_version: '4.3'
+    - nodejs_version: '4.8'
       webpack_version: latest
       job_part: test
 build: 'off'
 matrix:
   fast_finish: true
 install:
   - ps: Install-Product node $env:nodejs_version x64
+  - npm i -g npm@latest
   - npm install
 before_test:
   - cmd: npm install webpack@%webpack_version%