Check_MK Werk 2370: Fix computation of "in downtime" and "acknownledged" of hosts in BI aggregations

ID: 2370 Title: Fix computation of "in downtime" and "acknownledged" of hosts in BI aggregations Component: BI Level: 2 Class: Bug Fix Version: 1.2.7i3 BI automatically aggregates downtimes and acknowledgements. But for host nodes in a BI tree these two states had been swapped. This has been fixed.