🔧 config(travis): upgrade node

kazupon · kazupon · commit 9e5307c0d3b6 · 2017-01-01T17:13:14.000+09:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - "5"
+  - "6"
 before_install:
   - npm install -g phantomjs
 env:
