Bug 119807 Repeat header doesn't work in birt pdf emitter.
Description: Repeat header doesn't work in birt pdf emitter. Steps to reproduce: 1. New a report and insert a table containing data more than one page. 2. Preview in pdf through birt pdf emitter. 3. Change table repeatHeader to false and preview in pdf again. Expected result: Repeat header property works. Actual result: Table header wasn't repeated no matter repeatHeader was set to true or false.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/executor/TableItemExecutor.java
return false;
		}
		/**
		 * scan the group header to see if the group has any drop cells.
		 * 
		 * @param group
		 *            group to be scaned.
		 * @return true, the group has drop cells, false, no.
		 */
		private boolean hasDropCellsInGroup( TableGroupDesign group )
		{
			TableBandDesign header = group.getHeader( );
			if ( header != null )
			{
				for ( int i = 0; i < header.getRowCount( ); i++ )
				{
					RowDesign row = header.getRow( i );
					if ( row != null && hasDropCellsInRow( row ) )
					{
						return true;
					}
					return false;
				}
			}
			return false;
		}
	}
	/*
	 * (non-Javadoc)
	 *