Added exception messages sent to client when server detects a session task has...
Added exception messages sent to client when server detects a session task has been removed, or access has been revoked.
Previously, when a browser had been inactive for a while (for example when you lock your computer) the itask server would garbage collect your session but the client would not be notified that this had happened and would simply become unresponsive. Now you it gets an exception message when the session can no longer be resumed.