zabbix: Update from 1.8.19 to 1.8.20
zabbix: Update from 2.0.10 to 2.0.11
zabbix: Update from 2.2.1 to 2.2.2

Potentially fixes CVE-2012-0031, CVE-2012-0053, CVE-2012-0883,
CVE-2012-2687, CVE-2012-3499, CVE-2012-4558, CVE-2013-1862,
CVE-2013-1896, CVE-2013-2249, CVE-2013-1034, CVE-2013-5143.
fail2ban: Update from 0.8.11 to 0.8.12