lmdb: added configure-time check
sockaddr: raw address getter, updated api
dynzone: module for dynamic zonedb (A records)
dcudb: renamed files
dnsproxy: DNS proxy for unresolved queries

Each query that is not already resolved is forwarded to the specified
server for resolution, and the response is sent back.

Forwarder uses TCP only (needs merge of resolver_compat).
renamed to rose
Merge branch 'resolver_compat' into rose

Conflicts:
	configure.ac
	src/common/net.c
Merge branch 'resolver_compat' into rose

Conflicts:
	src/Makefile.am
rosedb: support for multiple RRs/types, RDATA parser
Merge branch 'master' into rose
rose: log RDATA instead of address
rose: NXDOMAIN, zone cuts
rose: tool CLI checks
rose: fixed NXDOMAIN/referral, AA
rose: tool lists RRTYPE, more checks
Merge branch 'master' into rose

Conflicts:
	src/knot/nameserver/process_query.c
rose: post-merge fixes
rose: lowercase owner on import
rose: better nxdomain/referral behaviour, provide optional SOA if exists
Add example knot.conf for rosedb