Example of NSURLSessionDownloadTask for question on stackoverflow - http://stackoverflow.com/questions/31361127/how-can-i-download-an-mp4-straight-to-my-hard-drive-in-swift
Example of NSURLSessionDownloadTask for question on stackoverflow - http://stackoverflow.com/questions/31361127/how-can-i-download-an-mp4-straight-to-my-hard-drive-in-swift