Add redirect firewall rules
Rules to redirect dns and http traffic in the case that either the dns is set staticly in the client or an old ip is cached by the client.
firewall redirect hotplug script
Hotplug script to update the dns_pbx and http_pbx rules in the firewall config, in the case the lan ip changes.
Merge pull request #4 from FriedZombie/redirect

Redirect all http and dns traffic to the pbx
  - per default all dns requests from lan zone
  - www disabled, ppl can enable for optional use later
Updated the Makefile to include the firewall hotplug script
corrected path in Makefile
Merge pull request #7 from FriedZombie/redirect

refering to 3c3b4625bb ,
  copy hotplug file into the package, too.