Add NVM and Travis config files

Emanuele Marchi · Emanuele Marchi · commit a8d7fe4d20bf · 2018-04-03T17:12:29.000+02:00
diff --git a/.nvmrc b/.nvmrc
@@ -0,0 +1 @@
+9
diff --git a/.travis.yml b/.travis.yml
@@ -0,0 +1,2 @@
+language: node_js
+node_js: 9
