Add support freebsd plz and pull little fix for template!!

Hello! We used you formula on FreeBSD10, because we changed it for support freebsd10.
1. We added support Freebsd10 in map.jinja
2. Add param syslog in zabbix.agentd.conf.jinja. (logfile: syslog)
3. Add param hostame in zabbix.agentd.conf.jinja. (hostname: foobare)
4. Add param pidfile in zabbix.agentd.conf.jinja. (pidfile:/var/run/zabbix/zabbix_agent.pid)
Thanks!