dns/libasr: update to 1.0.4 release
Changes since 1.0.2:
- add definition of MAXDNAME for systems that lack it
- some libc require include of nameser_compat.h for rr types definition
- add support for edns0 and dnssec
- remove support for HOSTALIASES
- remove support for non-standard [addr]:port syntax for nameserver
- remove support for YP
- always reload resolv.conf if pid changed
- various bugfixes and improvements