Make filterdns restartable and properly cleanup its tables upon exit or during a reconfiguration
Print usage
Remove spawnfcgi dependency
To avoid issues with pidfiles being overwritten lock the file during modifications
Actually correct an issue with unallocated structure
Add lighttpd patch to disable the server started log
Change the checks to accomodate the fact reported on http://forum.pfsense.org/index.php/topic,57274.0.html