RestKit/RestKit — pull request #462 by nolanw (2011-12-08 20:25:09+00:00)
Title: Request delegate can learn of authentication failures

c.f. [Antonio Mancina's request on the mailing list](http://groups.google.com/group/restkit/browse_thread/thread/239d35efdf9e16a5/839b84452f4b3e26)

Unfortunately, I found that the request queue was releasing the request by the time the response wanted to send to the request's delegate. Given the comment in RKResponse.m about not retaining the request, I assume that had some good reasoning behind it. I'm not sure what that reasoning is, though, so I'm not sure what else to do about it. Thoughts?