add travis ci integration

.travis.yml

@@ -0,0 +1,3 @@
+language: node_js
+node_js:
+ - "node"

package.json

@@ -8,7 +8,7 @@
     "lint": "eslint client server --ext .jsx --ext .js",
     "lint-fix": "eslint client server --ext .jsx --ext .js --fix",
     "build": "NODE_ENV=production webpack --config webpack.config.prod.js --progress",
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "npm run lint",
     "fetch-examples": "node fetch-examples.js",
     "postinstall": "git submodule update --remote --recursive"
   },