bump travis node versions to current and lts

Michael J. Ryan · Michael J. Ryan · commit 1321acc68da7 · 2018-12-12T17:24:36.000-07:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,6 +1,7 @@
 language: node_js
 node_js:
-  - "8"
+  - "10"
+  - "11"
 script: "npm test"
 deploy:
   provider: npm
