Configure Travis.

.travis.yml

@@ -1 +1,9 @@
+sudo: required
+dist: trusty
 language: node_js
+node_js:
+  - node
+script:
+  - npm run ci
+notifications:
+  email: false

package.json

@@ -5,7 +5,8 @@
   "main": "index.js",
   "scripts": {
     "lint": "eslint ./src/*",
-    "test": "jest"
+    "test": "jest",
+    "ci": "npm run lint && npm run test"
   },
   "repository": {
     "type": "git",