Upgrade to rc4, changes over rc3 (-: removed, +: added)
REVERT: Add --force-fast-ra option. Another thanks to Uwe Schindler.
+ Update Spanish transalation. Thanks to Vicente Soriano.
+ Add --ra-param option. Thanks to Vladislav Grishenko for
+ inspiration on this.
+ Add --add-subnet configuration, to tell upstream DNS
+ servers where the original client is. Thanks to DNSthingy
+ for sponsoring this feature.
+ Add --quiet-dhcp, --quiet-dhcp6 and --quiet-ra. Thanks to
+ Kevin Darbyshire-Bryant for the initial patch.
+ Allow A/AAAA records created by --interface-name to be the
+ target of --cname. Thanks to Hadmut Danisch for the
+ Avoid treating a --dhcp-host which has an IPv6 address
+ as eligable for use with DHCPv4 on the grounds that it has
+ no address, and vice-versa. Thanks to Yury Konovalov for
+ spotting the problem.
+ Do a better job caching dangling CNAMEs. Thanks to Yves
+ Dorfsman for spotting the problem.
Fix shebang lines of two Perl scripts.