Bug 156969 [regression]Group header repeat doesn't work in Web Viewer.
Description: Group header repeat doesn't work in Web Viewer. Steps to reproduce: 1. New a data source and dataset, drag the dataset to Layout. 2. Add a group. 3. Set page break in the first data item in table detail row. 4. Preview in web viewer&#12290; Expected result: Group header is repeated in each page. Actual result: No group header repeat effect.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/ir/EngineIRReader.java
for ( int i = 0; i < count; i++ )
				{
					ReportItemDesign item = (ReportItemDesign) readDesign( in );
					listBand.addContent( item );
				}
				return listBand;
			}
			case TABLE_DESIGN :
			{
				TableItemDesign table = new TableItemDesign( );
				readTable( dis, table );
				
				if ( IOUtil.readBool( in ) )
				{
					TableBandDesign header = (TableBandDesign) readDesign( in );
					table.setHeader( header );
				}
				
				int count = IOUtil.readInt( in );
				for ( int i = 0; i < count; i++ )
				{
					TableGroupDesign group = (TableGroupDesign) readDesign( in );
					table.addGroup( group );
				}
				
				if ( IOUtil.readBool( in ) )
				{
					TableBandDesign detail = (TableBandDesign) readDesign( in );
					table.setDetail( detail );
				}