Misc. software and patches by DES

FreeBSD patches

murmur3_32.c	BSD-licensed implementation of the 32-bit variant of MurmurHash3.

ldns1617-freebsd.diff	~~Code cleanup for LDNS 1.6.17, as committed to head.~~ committed upstream
unbound1422-freebsd.diff	~~Code cleanup for Unbound 1.4.22, as committed to head.~~ committed upstream

Other patches
planet-20080128.diff	Change Planet's default behaviour when old articles are updated (see patch for details)