Implemented travis, testing

.travis.yml

@@ -0,0 +1,5 @@
+language: node_js
+install:
+  - npm install
+script:
+  - npm run test

README.md

@@ -1,3 +1,5 @@
+[![Build Status](https://travis-ci.org/ohtuprojekti-ilmo/ohtuilmo-backend.svg?branch=master)](https://travis-ci.org/ohtuprojekti-ilmo/ohtuilmo-backend)
+
 ## Installation
 Clone and run:
 npm install

package.json

@@ -6,7 +6,7 @@
   "scripts": {
     "watch": "cross-env NODE_ENV=development nodemon index.js",
     "start": "cross-env NODE_ENV=production node index.js",
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"No tests specified\" && exit 0"
   },
   "repository": {
     "type": "git",