Check_MK Werk 5996: Fixed lookup of management protocol and credentials

ID: 5996 Title: Fixed lookup of management protocol and credentials Component: WATO Level: 1 Class: Bug fix Version: 1.6.0i1 If a host has configured a SNMP management board in Check_MK version 1.4.0 and the site was upgraded to 1.5.0 or later versions, then the SNMP management board protocol and credentials were not found. Fixed that!