API Basejump: Timestamp microservice

User stories:

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)
If it does, it returns both the Unix timestamp and the natural language form of that date.
If it does not contain a date or Unix timestamp, it returns null for those properties.
Example Usage:
Example Output:
unix: 1450117800,
natural: "December 15, 2015"