officially declare node >=4 dependency

Author: benmosher

package.json

@@ -2,6 +2,7 @@
   "name": "eslint-plugin-import",
   "version": "1.10.1",
   "description": "Import with sanity.",
+  "engines": { "node": ">=4" },
   "main": "lib/index.js",
   "directories": {
     "test": "tests"

utils/package.json

@@ -1,7 +1,8 @@
 {
   "name": "eslint-module-utils",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "Core utilities to support eslint-plugin-import and other module-related plugins.",
+  "engines": { "node": ">=4" },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },