URL Shortener Microservice

User Story: I can pass a URL as a parameter and I will receive a shortened URL in the JSON response.

User Story: If I pass an invalid URL that doesn't follow the valid http://www.example.com format, the JSON response will contain an error instead.

User Story: When I visit that shortened URL, it will redirect me to my original link.

Examples:

To add a new url...

http://makeitshorter.herokuapp.com/shorten/http://jordanrhea.com

Response...

{"_id":2,"shorturl":"http://makeitshorter.herokuapp.com/2","longurl":"http://jordanrhea.com"}