.D........ [ZBXNEXT-101] fixed ChangeLog entry

git-svn-id: svn://svn.zabbix.com/trunk@48609 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
........S. [ZBX-8414] fixed value cache statistics update when database contains only part of requested data
                      fixed value cache single value request returning FAIL for not found items in low memory mode
           [merge ^/branches/2.2 -c r48611]


git-svn-id: svn://svn.zabbix.com/trunk@48612 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2