Rearrange else-if in Request.init to fix iOS 7 fatal error.

[jandrewmoore]

See my comments on Alamofire Issue 29 here.

[mattt]

Hmm... following your findings, I don't understand how this would produce the desired behavior. In the case of an if / else statement, if certain cases overlap, it should go from most specific / exclusive to least. Unless I have it wrong, shouldn't it be testing download, then data, then upload?

[yonaskolb]

Can confirm this fixes a fatal crash on iOS 7

[jandrewmoore]

It is in order of specificity. I think I wrote confusingly. task is NSURLSessionUploadTask only returns true for upload requests, but task is NSURLSessionDataTask returns true for upload and data requests, and task is NSURLSessionDownloadTask returns true for all kinds of requests. So the delegate was being set to handle download tasks instead of data tasks.

[kriswallsmith]

This fix allows me to use Alamofire on the iOS 7.1 simulator. My .response callback was getting nil instead of an NSData before.

[mattt]

Thanks, @jandrewmoore.