SignalR/SignalR — pull request #3181 by halter73 (2014-07-31 01:49:45+00:00)
Title: Send ACKs to the connection waiting on the ACK not the acker itself

- These ACKs are used to verify that commands published to the
bus have been received and processed (e.g. group commands).
- Previously, ACKs only succeeded if the waiter and acker were on
the same machine and/or the acker happened to be the waiter.

#3037