Log Message:
Update to 0.22:

**** 0.22 February 11, 2015

   Fix: rt.cpan.org #101184
   make siginception and sigexpiration available as time() values

   Fix: rt.cpan.org #101183
   wrong URL for blog in README

   Fix: rt.cpan.org #83031
   [RRSIG] lack of ECDSA support

***0.21 October 24, 2014

   Fix: rt.cpan.org #99250
   [RRSIG] validation fails when Signer's Name is upper case

   Fix: rt.cpan.org #99106
   Premature end of base64 data  (in 14-misc.t test script)

***0.20 August 15, 2014

   Fix: rt.cpan.org #97457
   !hex! error when parsing NSEC3 with empty salt

***0.19 Jun 6, 2014

   Remove inappropriate deprecation warning in DNSKEY.pm

***0.18 May 8, 2014

   Recode RR implementations to provide Net::DNS 0.69+ interface.

   Fix: rt.cpan.org #95034
   Failure to parse NSEC3PARAM record with null salt

   Fix: rt.cpan.org #81289
   Failure to handle GOST DS records

***0.17 November 29, 2013

   Fix: rt.cpan.org #90270
   NSEC3->covered() should use case-insensitive comparisons

   Fix: rt.cpan.org #79606
   Lower case zone-name part with DNSKEY::privatename

   Allow to specify algorithms with ::Private->new_rsa_private and
   ::Private->generate_rsa instead of assuming RSASHA1.

   Fix: rt.cpan.org #55621
   Specify license type (mit) in META.yml

   Fix: rt.cpan.org #60269
   Remove Digest::SHA1 prerequirement

   Fix: rt.cpan.org #62387 & #63273
   Typo fixes

   Fix: rt.cpan.org #62386
   Make Net::DNS::RR::DS::digtype method work

   Fix: rt.cpan.org #62385
   Do not compress Next Domain Name in NSEC rdata.

   Fix: rt.cpan.org #61104
   Spelling correction in DS.pm and fix of key2ds demo program

   Fix: rt.cpan.org #60185
   Make sure %main::SIG hash keeps its values when compiling Net::DNS::RR::SIG
   in perl versions before 5.14.  See also: rt.perl.org #76138

   Fix: rt.cpan.org #64552 and rt.cpan.org #79606
   Support for private-key-format v1.3

   Fix: rt.cpan.org #75892
   Do not canonicalize the "Next Domain Name" rdata field of a NSEC RR
   for draft-ietf-dnsext-dnssec-bis-updates-17 compliance.

   BUG FIX/FEATURE: validation of wildcard RRs now available. Duane
   Wessels is acknowledged for submitting the initial code on which
   this fix is based.

   FIX: case sensitivity of ownername during DS generation
        (Acknowledgements Jens Wagner)