* Improvements in obtaining contact capabilities.
  * Other recent changes in earlier versions:
  * - Enable ICE and STUN/TURN discovery by default for new Jabber account.
  * - Fix group box in installer after removing feed.
  * - Updatecheck activator, update authenticate window, exported window no more used.
  * - Update ice4j.jar and fix some javadoc warnings.
  * - Introduce sending/receiving generic events operation set and its implementation for jabber protocol.
  * - Remove feeds option in the installer.
  * - Fix filtering broken NOTIFY messages.
  * - Log moved to the good place.
  * - Fixes call history record state IndexOutOfBoundsException.
  * - Tries to fix a NullPointerException in CallPeerMediaHandlerSipImpl.createMediaDescriptionsForAnswer reported by Bauersachs Ingo on the dev mailing list in the thread "Exception creating media description when all video codecs disabled".
  * - Don't process NOTIFY messages without subscription state header.
  * - Fixes IndexOutOfBoundsException in Call History, prevents the gui from crashing in any exceptions coming from contact list filters and adds some logs in order to better analyze the situation, which provoked the exception in first place.
  * - Fix show of wrong password dialog if we wait too long on master password prompt or wrong password dialog for sip accounts. Fix editing sip account password.
  * - Rebuilds the native binaries of PortAudio and echo cancellation for Windows, Mac OS X and FreeBSD from r7942. The Windows and FreeBSD binaries are contributed by Sebastien Vincent and the Mac OS X one is courtesy of Damian Minkov.
  * - Tries to improve the echo cancellation by reducing the effects of reverberation.
  * - Commits work in progress on improving echo cancellation.Attempts to shorten the adaptation time of the echo cancellation.
  * - Ensure that the received call dialog is close when the call state changes.
  * - Fixes a NullPointerException reported by Bauersachs Ingo in the dev mailing list thread "Exception creating media description when all video codecs disabled".
  * - Commits work in progress on improving echo cancellation.
  * - Allow to override the preferIPv6Address in the default settings.
  * - Check which is the default sip transport in default properites.
  * - Move g722 at first place in the list of preferred codec.
  * - Commits work in progress on improving echo cancellation. Attempts to better the matching of playback and capture which seems to reduce the far to near end delay. Since the drift is wildly varying, the echo canceller will still fail to deliver. (Which also means that there is no need to rebuild the respective native binaries.)