Handle /etc.init.d/fail2ban status for older versions

Fail2ban versions before 0.8.6-3 (for Debian) always return
exit code 0 for the status command, even if the service is not
running. This was fixed in newer versions which now return proper
exit codes. It was fixed in fail2ban in
https://github.com/fail2ban/fail2ban/pull/36
Update to the latest config file from 0.8.4

This template now matches the package provided config file that would
come with Ubuntu 10.04+ and RHEL 5+