Test on modern node.js versions

mmalecki · mmalecki · commit b9712abbb1b8 · 2020-04-09T13:57:17.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,7 @@
 sudo: false
 language: node_js
 node_js:
-  - 6
   - 8
   - 10
+  - 12
+  - 13
