Bug 136256 Enhance the message builder
Please see the spec attached in 133995 for detail.
UI/org.eclipse.birt.report.designer.ui.lib.explorer/src/org/eclipse/birt/report/designer/ui/lib/explorer/action/AddSelectedLibToCurrentReportDesignAction.java
return false;
	}
	public void run( )
	{
		if ( isEnabled( ) )
		{
			try
			{
				UIUtil.includeLibrary( getSelectedLibrary( ) );
			}
			catch ( Exception e )
			{
				ExceptionHandler.handle( e );
			}
		}
	}
	private LibraryHandle getSelectedLibrary( )
	{
		IStructuredSelection selection = (IStructuredSelection) viewer.getSelection( );
		if ( selection != null )
		{
			if ( selection.getFirstElement( ) instanceof LibraryHandle )
			{
				return (LibraryHandle) selection.getFirstElement( );
			}
		}
		return null;
	}
}