add travis-ci

Author: Guy

.gitignore

@@ -1,2 +1,3 @@
 .DS_store
+npm-debug.log
 node_modules/

.travis.yml

@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - "4.0"
+script: npm run-script build-and-test

package.json

@@ -48,7 +48,8 @@
     ]
   },
   "scripts": {
-    "test": "jest"
+    "test": "jest",
+    "build-and-test": "sh build.sh"
   },
   "license": "MIT"
 }