* Sending zrtp-hash and in answers for SIP invites. 
  * Other recent changes in earlier versions:
  * - Fixes the Eclipse and NetBeans classpaths because of the replacement of lib/installer-exclude/httpclient-4.0-beta2.jar with lib/installer-exclude/httpclient-4.0.1.jar performed in r7576.
  * - Add contact dialog enhancements, including no account selection by default, disabled "add" button if no account is selected or no contact address is entered.
  * - Merge changes from branch/gsoc10/xcap and patch sent to dev mailinglist with subject "XCAP tests" which represents the work of Grigorii Balutsel on the "XCAP Support" GSoC 2010 project into trunk.
  * - Introduces MediaStream#setConnector(StreamConnector) in order to make it possible to assign values to the properties of a MediaStream as they become known, not create the MediaStream after all property values are known.
  * - Adds support for distinguishing offline and online contact capabilities in OperationSetContactCapabilities implementations.
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds to Jingle support for placing calls off and on hold (still: only for Raw UDP)
  * - Adds possible assignment of preferred dynamic payload types so that we could gracefully handle systems that statically assigning dynamic payload type numbers. A popular example is telephone-event being assigned the 101 payload type. Problem reported on dev by Daniel Castro
  * - Jabber protocol now can be invited to gtalk chat rooms and can create such by using the format for the chat room name (private-chat-00000000-0000-0000-0000-000000000000@groupchat.google.com). Fix for clearing connections in every occasion and don't depend on external intervention. Fix chat room ui problem when provider doesn't have any rooms on the server or cannot be queried.
  * - The reason of the error was lost the AbstractCallPeer.setState() implementation, where it is received as a parameter, but not forwarded to the next level. This is now fixed.
  * - Show error message when call fails.
  * - Tries to fix a NullPointerException in the SIP ProtocolIcon implementation.
  * - Fixes issue #839: Unknown user in Jabber contact list.
  * - Jabber protocol: clear connection if we are disconnected due to other than connection_failed reason.
  * - Fixes a problem in the 'Me' display name (next to the avatar at the top of the MainFrame) which used to result in prepending the string "null" to the display name in some cases.
  * - Verifies received Jabber DiscoverInfo against the respective advertised node, hash (algorithm) and ver.
  * - Basic support for contact capabilities in the user interface.
  * - Disables (the accidentally enabled) Jingle until we finalize it. 
  * - Disables (the accidentally enabled) Jingle until we finalize it. 
  * - Commit from translate.sip-communicator.org by user mandre.: 864 of 864 messages translated (0 fuzzy).
  * - Fix creating sip account from simple form and NPE when editing account.
  * - Intermedia debug commit.
  * - Intermedia debug commit.
  * - Intermediate bug fixing commit.
  * - Fixes a problem that was causing us to direct our stream our own way in incoming jingle calls.
  * - Extract timestamp of delayed messages if provided (messages saved for a chat room coming from server). 
  * - Extending sip acc wizards now can set default transport protocol.