build(ci): run CI with most recent LTS version (#4708)

devversion · tinayuangao · commit 8f2a11e2605b · 2017-05-22T15:59:31.000-06:00
* Runs Travis with the most up-to-date LTS version.
diff --git a/.travis.yml b/.travis.yml
@@ -2,7 +2,7 @@ language: node_js
 sudo: false
 
 node_js:
-  - '6.10.2'
+  - '--lts'
 
 addons:
   jwt:
