Fixed some more race conditions when releasing a call while it is either still being set up or is being transferred.
Fixed closing video sending H.323 CLC command to remote. In process deprecated old OpalConnection::CloseMediaStream(stream) function as it can cause confusion, use stream->Close().
Applied patch for bug #350 "OpalMixer issue with media bypass in rev. 27617", thanks Valeriy V. Argunov
Fixed bug #404 "Assertion with H323Gatekeeper", reported by  Valeriy V. Argunov
Update symbols
Fixed accidentally setting too many audio buffers increasing latency on play back. The number of buffers was set to the maximum possible received audio frames per packet, often 240ms, which is relevant to the memory allocation dependent on OpalMediaStream::SetDataSize() but not to the number of audio buffers which should be strictly based on the OpalPCSSConnection::SetSoundChannelBufferTime() value.
Merged revision(s) 29978 from opal/branches/EpsilonEridani:
Added VPX_CODEC_UNSUP_BITSTREAM to the list of non-fatal errors for VP8 decoder, sometimes happens accidentally on lost packets.
Fixed failure to clean up SIP transport instances, again, regression by revision 29812.
Applied fix for bug #455 Assertion "Assignment of container that was deleted" on releasing call, thanks  Valeriy V. Argunov
Fixed media pass through mode when used on same connection, this constitutes an RTP "loopback" mode.

Added loopback endpoint to opal server, if call sip:loopback@wherever for example, will get RTP level loopback media.
Fixed incorrect CANCEL of INVITE if get a 482 loop detected error on second path to remote host.
Added more verbosity to standard console applications.
Fixed extraneous new line in presence note field.
Merged revision(s) 29991,30000 from opal/branches/EpsilonEridani:
The VP8 decoder is easily confused so if there is a missing packet, it now forgets the all of the frame data collected so far and ignores everything further until it sees an I-Frame.
Enhanced listener handling so if use OpalEndPoint::SetListeners() if can stop all listeners not included in the supplied list, leave ones in list still running and start new ones.

Added some conference configuration parameters to opal server application.
Update symbols
Fixed passing up to application (via SIP handler or "C" API) status of failed subscription, most paths worked, one didn't.
Fixed bug #457 Memory leak in SIPConnection::OnSendAnswerSDPSession
Update symbols
Update release version number to 3.12.4