RestKit/RestKit — pull request #736 by echamberlain (2012-05-11 16:34:43+00:00)
Title: 709 rk managed object thread safe invocation fix

Fix for https://github.com/RestKit/RestKit/issues/709 - [RKManagedObjectThreadSafeInvocation serializeManagedObjectsForArgument:withKeyPaths:] is not properly serializing managed objects

Fixed RKManagedObjectThreadSafeInvocation to properly handle serialization when the key is a keyPath.

Updated RKManagedObjectThreadSafeInvocationTest to test keyPath keys.