- Add quotes before and after zone name when generating "addzone"
input so avoid "unexpected token" errors.
- Use a hex digest for zone filenames when the zone or view name
contains a slash.
- Test with a domain name containing a slash.
- Incidentally added 'catzhash.py' to contrib/scripts to generate
hash labels for catalog zones, as it was needed to write the test.
4064. [contrib] dnssec-keyset.sh: Generates a specified number
of DNSSEC keys with timing set to implement a
pre-publication key rollover strategy. Thanks
to Jeffry A. Spain. [RT #38459]