Accept NSData instead of just file paths?

[bobspryn]

I have the need to post data I already have in memory (UIImage). Writing it to a file just to post it doesn't seem to make much sense. It seems like it would be a good add.

If you agree, I can make the additions and submit a pull request.

[kylestew]

I was just looking for the ability to do this. It would make my code a bit cleaner. Please submit a pull request if its not too much trouble.

[bobspryn]

I actually ended up not using this. It wasn't signing my requests properly (signature version 4) so had to switch to the AWS SDK behemoth. Unfortunately.