Remove support for node 0.10

.travis.yml

@@ -1,7 +1,5 @@
 language: node_js
 node_js:
-  - "0.12"
-  - "0.10"
   - "4"
   - "5"
   - "6"

CHANGELOG.md

@@ -6,6 +6,7 @@ v3.x
 * Rename `closingTag` into `voidTag` like in the official w3c spec.
 * Provide a `createHtmlTagObject` helper for plugin authors to create new tags.
 * Remove build in html minification
+* Support same node version like webpack 2: node 4 and higher
 
 v2.26.0
 ---

package.json

@@ -63,5 +63,8 @@
   },
   "peerDependencies": {
     "webpack": "1 || ^2 || ^2.1.0-beta || ^2.2.0-rc"
+  },
+  "engines": {
+    "node": ">= 4.3.2"
   }
 }