Use lts version of NopeJS

Looks like npm doesn't work with Node v9: https://github.com/nodejs/node/issues/16649
2017-11-01 09:24:57 +01:00 · 2017-11-01 09:24:57 +01:00 · 385337eb90
commit 385337eb90
parent dc26808a94
1 changed files with 1 additions and 1 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -51,7 +51,7 @@ matrix:
      env: TESTENV=eslint
      language: node_js
      python: null
-      node_js: node
+      node_js: "lts/*"
  fast_finish: true

 cache: