chore: package.json engines field >=4.0, drop Node 0.10 and 0.12

Tapppi · Tapppi · commit 28ff65a69cee · 2016-09-27T13:46:08.000+03:00
BREAKING CHANGE: drop support for Node &lt; 4.0 to enable usage of
new tools and packages.
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,5 @@
 language: node_js
 node_js:
-  - "0.10"
-  - "0.12"
   - "4"
   - "5"
   - "node"
diff --git a/appveyor.yml b/appveyor.yml
@@ -3,7 +3,6 @@ environment:
     - nodejs_version: '6'
     - nodejs_version: '5'
     - nodejs_version: '4'
-    - nodejs_version: '0.12'
 install:
   - ps: Install-Product node $env:nodejs_version
   - set CI=true
diff --git a/package.json b/package.json
@@ -12,6 +12,9 @@
     "type": "git",
     "url": "git+https://github.com/conventional-changelog/standard-version.git"
   },
+  "engines": {
+    "node" : ">=4.0"
+  },
   "keywords": [
     "conventional-changelog",
     "recommended",
