..F....... [ZBX-8784] fixed link to the latest data page from the map pop up menu

Before the fix:
- The "Latest data" link in the map pop up menu didn't set a value for the host filter. Broken by r48423.

After the fix:
- The filter is set correctly. Additionally, CUrl.formatQuery now supports recursive argument serialization.

git-svn-id: svn://svn.zabbix.com/trunk@49227 f4e7fd02-d210-4e34-a1e0-d4093fb66cc2