Log Message:
Update OpenDNSSEC to version 1.4.12.

Local changes (retained from earlier versions):
 * Some adaptations of the build setup (conversion scripts etc.)
 * in signer/ixfr.c, log the zone name if the soamin assertion trigers
 * in signer/zone.c, if there's a bad ixfr journal file, save it, for debug

Upstream changes:

News:

  This is a bug fix release targeting a memory leak in the signer
  when being used in the "bump in the wire" model where the signer
  would send out notify messages and respond to IXFR requests for
  the signed zone. This typically would manifest itself with very
  frequent outgoing IXFRs over a longer period of time.

  When upgrading from 1.4.10 (the 1.4.11 release was skipped) no
  migration steps are needed. For upgrading from earlier releases
  see the migration steps in the individual releases, most notably
  in 1.4.8.2. This version of OpenDNSSEC does however require a
  slightly less older minimal version of the library ldns.

Fixes:

 * OPENDNSSEC-808: Crash on query with empty query section
   (thanks Havard Eidnes).
 * SUPPORT-191: Regression, Must accept notify without SOA (thanks
   Christos Trochalakis).
 * OPENDNSSEC-845: memory leak occuring when responding to IXFR
   out when having had multiple updates.
 * OPENDNSSEC-805: Avoid full resign due to mismatch in backup file
   when upgrading from 1.4.8 or later.
 * OPENDNSSEC-828: parsing zone list could show data from next zone
   when zones iterated on single line.
 * OPENDNSSEC-811,OPENDNSSEC-827,e.o.: compiler warnings and other
   static code analysis cleanup
 * OPENDNSSEC-847: Broken DNS IN notifications when pkt answer
   section is empty.
 * OPENDNSSEC-838: Crash in signer after having removed a zone.
 * Update dependency to ldns to version 1.6.17 enabling the DNS HIP record.
 * Prevent responding to queries when not fully started yet.