Bug 148755 Add tthe status to the ActivityStackEvent.
If the the event rollback, the ActivityStackEvent status should be ROLL_BACK.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/activity/ActivityStack.java
CompoundRecord transaction = (CompoundRecord) transStack.pop( );
		
		
		
		if ( transaction.isEmpty( ) )
		{
			transaction.destroy( );
			return;
		}
		transaction.setState( ActivityRecord.DONE_STATE );
		
		ActivityRecord record = transaction;
		record.performPostTasks( transStack );
		if ( transStack.empty( ) )
		{
			
			destroyRecords( redoStack );
			
			
			record.setTransNo( ++transCount );
			undoStack.push( record );
			trimUndoStack( );
			sendNotifcations( new ActivityStackEvent( this,
					ActivityStackEvent.DONE ) );
		}
		else
		{
			
			
			CompoundRecord outer = (CompoundRecord) transStack.lastElement( );