* Fixes compilation against eglibc
* Fixes tracking logic when selectively restarting IPv4 or IPv6 firewall
* Fixes tracking logic for user chains by differentiating between reloads and restarts
* Introduces per-zone user chains {input,output,forwarding,prerouting,postrouting}_$zone_rule
* Supports legacy "tcpudp" protocol notation again
SVN-Revision: 35969