Check_MK Werk 4687: Fixed types of non-Stats: columns in Stats: queries

ID: 4687 Title: Fixed types of non-Stats: columns in Stats: queries Component: Livestatus Level: 1 Class: Bug fix Version: 1.5.0i1 Livestatus queries with Stats: can contain non-Stats: columns, too (grouping). The latter columns were always rendered as strings, which was incorrect for e.g. numbers. This has been fixed.