Drop all IPv6 traffic
Re-enable FORWARD chain on stop
Flush rules before starting the firewall
Reindent script and remove template comments

No functional changes

Git-Dch: Ignore
Also parse proxy configuration on stop

At least the PIDFILE variable needs to be set to successfully stop the
tinyproxy daemon.
Only start if tinyproxy config is readable

Log a failure message otherwise.
Process iptables rules before tinyproxy

This ensures that the iptables rules are set or unset even if starting
or stopping of tinyproxy fails.
Improve service script output and robustness

The script reports starting of the firewall rules and tinyproxy
individually and checks if loading the firewall rules actually succeeds.
Don't read /etc/default/lernstick-firewall

This file was never meant to be supported. The configuration is in
/etc/lernstick-firewall/lernstick-firewall.conf.
Correctly catch errors of the iptables script
Update changelog for version 1.2