<NME> .travis.yml
<BEF> language: node_js

node_js:
  - "6"

sudo: false
script:
    - "npm run test"
after_script: "npm install coveralls && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage"

<MSG> chore(ci): update node version

<DFF> @@ -1,7 +1,7 @@
 language: node_js
 
 node_js:
-  - "6"
+  - "8"
 
 sudo: false
 script:

chore(ci): update node version