A......... [ZBX-7781] fixed remote API calls returning an error if a successful API call returns an empty result
..F....... [ZBX-7781] fixed undefined index on the login screen when the guest user is disabled

Regressions, broken in r43976.

git-svn-id: svn://svn.zabbix.com/trunk@44557 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
........S. [ZBXNEXT-581] when copying templates lld rule expressions were not translated and filter conditions were not copied 


git-svn-id: svn://svn.zabbix.com/trunk@44562 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
.......... [ZBXNEXT-1343] remove node placeholders from test data (no actual tests were there)

git-svn-id: svn://svn.zabbix.com/trunk@44576 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
.......... [ZBXNEXT-826] this script is not used since 2.2 appliance, removing

git-svn-id: svn://svn.zabbix.com/trunk@44577 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
.......... [ZBXNEXT-686] added unit tests for CCollectionValidator and CStringValidator

git-svn-id: svn://svn.zabbix.com/trunk@44580 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2
.......... [ZBXNEXT-686] corrected the string validator test

git-svn-id: svn://svn.zabbix.com/trunk@44583 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2