use node 6/8 on travis, update engines

jeffjewiss · jeffjewiss · commit 3bcbcef09845 · 2017-10-07T23:41:37.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,8 @@
 ---
 language: node_js
 node_js:
-  - "4"
+  - 6
+  - 8
 sudo: required
 dist: trusty
 
diff --git a/package.json b/package.json
@@ -16,7 +16,7 @@
   },
   "repository": "https://github.com/percy/ember-percy",
   "engines": {
-    "node": ">= 0.12.0"
+    "node": "^4.5 || 6.* || >= 7.*"
   },
   "author": "Perceptual Inc.",
   "license": "MIT",
