If nsX.reconfigure() is used in a way that might affect other tests
within the same module, it's best to split up the tests which need the
reconfig to a separate module. This ensures the reconfigure() won't
interfere with test results in case the tests are executed separately,
or in a different order.
many of the zones in the dnssec system test were identical or
had only trivial differences, and it would be easier to keep track
of them if they were sourced from template files.
also, the extra_artifacts have been simplified and restored to
the test files.
- changed named.conf.in to named.conf.j2 in all server directories that
don't currently need to use copy_setports() during the test.
- converted the tests that use ns5 to python, and replaced
named1.conf.in and named2.conf.in with a jinja2 template instead.
the only remaining server that still needs copy_setports() is ns4.
- removed ns4/named5.conf.in, and moved its functions to ns5 (which
is supposed to be for servers with broken trust-anchor configurations,
so it should have been there in the first place). converted the tests
that used that ns4 configuration to use ns5 with jinja instead.
- revised the remaining ns4 configurations (named[1-4].conf.in) to
minimize the differences between them. this will make it easier to
convert it into a jinja2 template later.
