Accept a status update from a GUI component in the arlut.csd.JDataComponent
package. This method throws an RMI remote exception to allow the client
to call the server for value verification from within a setValuePerformed()
method. GUI components that call setValuePerformed() should treate an RMI
RemoteException as a failure and not display the proposed value change.
true if the callback accepted the change and the GUI component should
go ahead and display the change made by the user.