Define __APPLE_USER_RFC_2292 so the IPv6 socket options are exposed on OSX
Set errno appropriately if we're building without IPv6 support and an IPv6 socket is requested
Remove redundant includes of netinet/in.h
Pass2 for attributes in existence checks

	if (&foo-LDAP-Group) {
		...
	}
Improve debug logging of rlm_perl

Don't just show the attributes being copied, but also say where they are
copied from/to.