casa-mp-base

net/djbdns - add sha1 & rmd160 to various checksums; switch to port: depspec; note port does not currently build universal; update dnsroots.global for latest IP addresses of root name servers; fix case-insensitive filesystem issue with TINYDNS and built program tinydns; clean post-destroot a bit (eval instead of foreach loop); update IPv6 patch to test23; add descriptions to variants

git-svn-id: https://svn.macports.org/repository/macports/trunk/dports@46625 d073be05-634f-4543-b044-5fe20cf6d1d6