Example is not working on Swift 2 and Xcode 7

[Fatalityap]

Hi sorry, but your example in your Readme.md (https://github.com/thibaultCha/TCBlobDownloadSwift#delegate) docs is not working. I am trying on XCode 7 and iOS 8-9. But delegate methods is not calling when I create custom class or just want to run you example in Readme.md .

Only one way to call delegate methods is to put it to main UIViewController and point self to downloadFileAtURL method as delegate param.

I debug code and this is only way to call delegate methods. Maybe I have done something wrong but here we are this issue.

For more clearness I am talking about this example: https://github.com/thibaultCha/TCBlobDownloadSwift#delegate