## User stories:
## 1) I can pass a string as a parameter, and it will check to see whether that string contains either a unix timestamp or a natural language date (example: January 1, 2016)
## 2) If it does, it returns both the Unix timestamp and the natural language form of that date.
## 3) If it does not contain a date or Unix timestamp, it returns null for those properties.
###Example usage:
https://timestamp-api-node.herokuapp.com/December%2015,%202015
https://timestamp-api-node.herokuapp.com/1450137600
###Example output:
{ "unix": 1450137600, "natural": "December 15, 2015" }