chore(package): use nodejs for travis ci

Author: AnthonyNahas

.travis.yml

@@ -11,7 +11,7 @@ addons:
 
 language: node_js
 node_js:
-  - "6"
+  - "8"
 
 before_script:
   - export DISPLAY=:99.0
@@ -24,4 +24,3 @@ after_success: gulp coveralls
 
 cache:
   yarn: true
-