Request Header Parser Microservice

User stories:

1) I can get the IP address, language and operating system for my browser.

Example usage:

https://serene-waters-77746.herokuapp.com/api/whoami

Example output:

{ "ip-address":"::ffff:127.0.0.1", "language":"en-US,en;q=0.8", "software":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.82 Safari/537.36" }