build: support Node.js 6.x

dougwilson · dougwilson · commit 7dd87b699e9b · 2016-05-12T16:52:49.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -8,6 +8,7 @@ node_js:
   - "3.3"
   - "4.4"
   - "5.11"
+  - "6.1"
 sudo: false
 cache:
   directories:
