bump to Node >=6

lukeed · lukeed · commit dd034444dfb4 · 2018-05-15T09:18:52.000-07:00
diff --git a/package.json b/package.json
@@ -10,7 +10,7 @@
     "url": "lukeed.com"
   },
   "engines": {
-    "node": ">=4"
+    "node": ">=6"
   },
   "files": [
     "index.js"
