Dnsviz

DNSViz 0.9.4 fixes several bugs.

Fix compatibility with dnspython >= 2.0

- Fix minor bugs related to Ed448 and dnsviz print.

- Fix several bugs.
- Include tests in distribution.
- Update copyright years.

- Updated command-line usage using argparse. Support long arguments.
- Updated analysis to warn if older, weaker algorithms are in use.
- Updated analysis to check if NSEC/NSEC3 records cover records that are otherwise shown to exist.
- Add support for display of NSID and server names associated with responses
- Support DNSSEC algorithms 15 and 16 with M2Crypto

DNSViz 0.8.2 fixes several bugs.