chore: Update minimum node to 6.x to match protractor core

NickTomlin · NickTomlin · commit ba0e5fde71a6 · 2018-07-02T16:14:58.000-05:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,8 +1,9 @@
 language: node_js
 sudo: false
 node_js:
-  - "4"
-  - "5"
+  - "6"
+  - "8"
+  - "10"
 
 env:
   global:
diff --git a/package.json b/package.json
@@ -35,5 +35,8 @@
     "run-sequence": "^1.2.2",
     "selenium-mock": "^0.1.5",
     "typescript": "^2.0.0"
+  },
+  "engines": {
+    "node": ">=6.9.x"
   }
 }
