Initial public commit for RCURLKit
Set SKIP_INSTALL to YES

Otherwise, any app including this framework can't be correctly
archived.
Add class conveniency methods to RCImageStore
Add HTTP_HANDLER_SUCCESS() macro
Check for the statusCode selector before using it
Rename cached method for caching a NSURLResponse
Add support for caching images where it doesn't make sense to have a response

e.g. images generated on the device