add travis ci

.travis.yml

@@ -0,0 +1,4 @@
+node:
+  - 4
+  - 6
+  - stable

package.json

@@ -4,7 +4,7 @@
   "description": "",
   "main": "lib/index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "for t in test/*.js; do echo $t; node $t; done"
   },
   "dependencies": {
     "eslint-config-fxa": "2"