..F....... [ZBX-7858] fixed some triggers not being displayed in Monitoring -> Triggers

Before the fix:
- When fetching triggers for the Monitoring -> Triggers page no sorting has been applied. That means, that we selected random "search_limit" triggers and then sorted them, which may have resulted in some triggers not being displayed at all.

After the fix:
- Sorting is applied when retrieving triggers and no triggers are missing.

git-svn-id: svn://svn.zabbix.com/trunk@43079 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
..F....... [ZBXNEXT-2167] improved info column in history of actions in screen item

git-svn-id: svn://svn.zabbix.com/trunk@43082 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
.D........ [ZBX-6731] added ChangeLog entry

git-svn-id: svn://svn.zabbix.com/trunk@43106 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2