Bug 144613 Blank page when set group page break before as always.
Description: Blank page when set group page break before as always. Steps to reproduce: 1. Insert a table. 2. Add a group, set group page break before to always 3. Delete table header and footer 4. Preview in html and pdf Expected result: No blank page Actual result: A blank page in html. If you set group page-break-after to always and preview, no blank page.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFPageLM.java
page.removeFooter( );
			page.removeHeader( );
			header = null;
			footer = null;
		}
		body.setHeight( root.getHeight( )
				- ( header == null ? 0 : header.getHeight( ) )
				- ( footer == null ? 0 : footer.getHeight( ) ) );
		body.setPosition( body.getX( ), ( header == null ? 0 : header
				.getHeight( ) ) );
		if ( footer != null )
		{
			footer.setPosition( footer.getX( ), ( header == null ? 0 : header
					.getHeight( ) )
					+ ( body == null ? 0 : body.getHeight( ) ) );
		}
	}
	/**
	 * layout page header area
	 * 
	 */
	protected void layoutHeader( )
	{
		IContent headerContent = pageContent.getPageHeader( );
		IReportItemExecutor headerExecutor = new DOMReportItemExecutor(
				headerContent );
		headerExecutor.execute( );
		PDFRegionLM regionLM = new PDFRegionLM( context, page.getHeader( ),
				headerContent, emitter, headerExecutor );
		boolean allowPB = context.allowPageBreak( );