Test Prosody's MUC's rate limit is exposed correctly now
Test Prosody's MUC's rate limit is exposed correctly now

There were a combination of problems before:

* The server's error message was not exposed in the delivery report;
* Wocky didn't recognise policy-violation;
* There was a bug in Wocky's error parsing code which clobbered the
  message type.

So many bugs for such a small stanza!

Ziemin/telepathy-gabble,Ziemin/telepathy-gabble,Ziemin/telepathy-gabble,Ziemin/telepathy-gabble