Enhanced AVTPanel to implement DataSelectionListener. Provided implementation for dataSelectionChanged(). Removed internal implementation of ActionListener used when JTree node clicked once. 
Enhanced AVTPanel to implement DataSelectionListener. Provided implementation for dataSelectionChanged(). Removed internal implementation of ActionListener used when JTree node clicked once. 

SVN-Revision: 675

OpenXIP/xip-host,OpenXIP/xip-host