Test on Node.js 6 & 8

LinusU · LinusU · commit 73ea9f2c72cc · 2018-05-29T11:06:01.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -19,6 +19,8 @@ node_js:
   - "2"
   - "4"
   - "5"
+  - "6"
+  - "8"
 
 install:
   - PATH="`npm bin`:`npm bin -g`:$PATH"
