Can HWIFileDownloader Init Fail?

[TosinAF]

Hey,

Great work on this. I wanted to find out if HWIFileDownloader Init can fail? If not I will submit a PR to fix that for swift. I checked the code and it didn't seem like it could.

Cheers

[Heikowi]

Thanks for your feedback!
Well, HWIFileDownloader's init will return nil if [super init] fails. But I think it's a debated topic.
I tend to think, crashing the app in the unlikely, contrived case of a failure simplifies things here.
So, please send your PR, sounds good.

[Heikowi]

Fixed with b23fa64.