Check_MK Werk 8679: Fixed a space leak in the state history cache

ID: 8679 Title: Fixed a space leak in the state history cache Component: cmc Level: 1 Class: Bug fix Version: 1.4.0b1 Whenever certain state changes happened to a host or service (flapping, downtime, alert), the Check_MK Micro Core leaked a small amount of memory (24 bytes on a 64 bit platform). This has been fixed.