ci: update the ci environment to nodejs v8

IgorMinar · IgorMinar · commit 3ce887f6cbfa · 2018-03-22T19:31:01.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -2,7 +2,7 @@ dist: trusty
 sudo: required
 language: node_js
 node_js:
-  - "5"
+  - "8"
 os:
   - linux
 env:
