- added tests to the dnssec system test that duplicate the ones from bin/tests/dnssec-signzone - changed cleanall.sh so it doesn't automatically remove all key files, because there are now some of those that are part of the distribution (cherry picked from commitccfe778c01) (cherry picked from commitd8f8eee381) (cherry picked from commitdbb225d83e) (cherry picked from commit161f525942)