npm test should run linter

.travis.yml

@@ -1,7 +1,6 @@
 language: node_js
 node_js: node
-script: npm run lint
+script: npm test
 notifications:
   email:
     on_success: never
-

package.json

@@ -28,10 +28,9 @@
   "scripts": {
     "start": "node index.js",
     "dev": "nodemon -e js,json,html",
-    "lint": "xo",
     "deploy": "now --public",
     "alias": "now alias",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "xo"
   },
   "xo": {
     "extends": "xo-lukechilds"