Use latest node lts/boron

Amiel Martin · Amiel Martin · commit df5d2b8df518 · 2017-07-12T10:13:21.000-07:00
diff --git a/package.json b/package.json
@@ -49,7 +49,7 @@
     "loader.js": "^4.2.3"
   },
   "engines": {
-    "node": ">= 4"
+    "node": "^6.11.1"
   },
   "ember-addon": {
     "configPath": "tests/dummy/config"
