Bug 129886 Delect a column contain the marge row which contain some item, Error message pop up
Details: Delect a column contain the marge row which contain some item, Error message pop up Setp: 1.New a library and add a 3*3 grid 2.Insert a label in cell(1,1) 3.Marge the cell of (1,1) and (1,2) 4.Delete column 1. Actual result: An error message pop up
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/TableEditPart.java
LayerConstants,
		ITableAdapterHelper
{
	public static final String BORDER_LAYER = "Table Border layer"; 
	private static final String RESIZE_COLUMN_TRANS_LABEL = Messages.getString( "TableEditPart.Label.ResizeColumn" ); 
	private static final String MERGE_TRANS_LABEL = Messages.getString( "TableEditPart.Label.Merge" ); 
	private static final String GUIDEHANDLE_TEXT = Messages.getString( "TableEditPart.GUIDEHANDLE_TEXT" ); 
	protected FreeformLayeredPane innerLayers;
	protected LayeredPane printableLayers;
	private Rectangle selectRowAndColumnRect = null;
	/**
	 * Constructor
	 * 
	 * @param obj
	 */
	public TableEditPart( Object obj )
	{
		super( obj );
	}
	/*