Bump node version in travis-ci cause atimeMs and mtimeMs are not part of the Stats object in node 8.0.0 (https://github.com/nodejs/node/blob/v8.0.0/doc/api/fs.md#class-fsstats)

esarbanis · esarbanis · commit 23fc3ab4d595 · 2017-12-14T11:58:14.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,5 @@
 language: node_js
-node_js: '8.0'
+node_js: '8.9'
 
 script:
 - npm run all
