Restructure the response JSON

[Sawood Alam]

I would suggest that response

{
	"results": [
		"https://web.archive.org/web/20170209143327/http://www.foxnews.com",
		"http://archive.is/H2Yfg",
		"http://www.webcitation.org/6o9Jubykh",
		"Error (The Perma.cc Archive): An API KEY is required"
	]
}

should be changed to

{
	"uri": "http://www.foxnews.com",
	"request-datetime": "20170209143321",
	"mementos": {
		"web.archive.org": "https://web.archive.org/web/20170209143327/http://www.foxnews.com",
		"archive.is": "http://archive.is/H2Yfg",
		"webcitation.org": "http://www.webcitation.org/6o9Jubykh",
		"perma.cc": "Error: An API KEY is required"
	}
}