.D........ [ZBX-954] change some changelog entries to describe actual user visible changes

git-svn-id: svn://svn.zabbix.com/trunk@44479 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
A.F.I...S. [ZBXNEXT-1343] removed support of old style node-based distributed monitoring

git-svn-id: svn://svn.zabbix.com/trunk@44485 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
.D........ [ZBXNEXT-1343] fixed typo

git-svn-id: svn://svn.zabbix.com/trunk@44487 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
....I..... [ZBXNEXT-1343] removed unique index from "services"

git-svn-id: svn://svn.zabbix.com/trunk@44490 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
.......PS. [ZBX-4675] add error checks to avoid partial configuration loading
           [svn merge ^/branches/2.2 -c r44495]


git-svn-id: svn://svn.zabbix.com/trunk@44497 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2