Bump Travis node version

durran · durran · commit 98460a21e806 · 2018-07-03T17:37:19.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,9 +1,7 @@
 language: node_js
 sudo: required
 node_js:
-  - 6.3.1
-  - 6
-  - 7
+  - 8.9.3
 script: npm run-script ci
 cache:
   directories:
