Check_MK Werk 5195: Fixed an obscure BI bug related to hard states when using the Nagios core.

ID: 5195 Title: Fixed an obscure BI bug related to hard states when using the Nagios core. Component: Livestatus Level: 1 Class: Bug fix Version: 1.5.0i1 Previously, the "service" table was missing a "hard_state" columnm, which led to a rather obscure bug in BI: When the Nagios core was used and BI was configured to use hard states and a service was in a non-OK soft state, the service was effectively ignored by BI. This has been fixed.