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
ListBandDesign listBand, short fieldType ) throws IOException
	{
		readBandField( in, listBand, fieldType );
	}
	protected void readTable( DataInputStream in, TableItemDesign table )
			throws IOException
	{
		while ( in.available( ) > 0 )
		{
			short fieldType = IOUtil.readShort( in );
			readTableField( in, table, fieldType );
		}
	}
	protected void readTableField( DataInputStream in, TableItemDesign table,
			short fieldType ) throws IOException
	{
		switch ( fieldType )
		{
			case FIELD_CAPTION :
				String captionKey = IOUtil.readString( in );
				String caption = IOUtil.readString( in );
				table.setCaption( captionKey, caption );
				break;
			case FIELD_COLUMNS :
				int columnCount = IOUtil.readInt( in );
				for ( int i = 0; i < columnCount; i++ )
				{
					byte[] bytes = IOUtil.readBytes( in );
					DataInputStream buffer = new DataInputStream(
							new ByteArrayInputStream( bytes ) );