.......... [ZBXNEXT-826] updated release date and version [2.2.7rc2]

git-svn-id: svn://svn.zabbix.com/trunk@50012 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
.......PS. [ZBX-8916] fixed "lastlogsize" not being updated in the configuration cache when values are received from the agent

git-svn-id: svn://svn.zabbix.com/trunk@50014 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2