node version bumped in travis yml

RobinBuschmann · RobinBuschmann · commit ba0467fd793a · 2017-07-04T19:45:56.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,7 +1,7 @@
 language: node_js
 
 node_js:
-  - "6.1"
+  - "7"
 
 install:
   - npm install
