Compare the result which generated from Cython environment
Instead print a determined string

Drop not needed references and logic for ssl_ca_crt old implementation.

  This version only display informations to change keyboard and set a NDB.

In "caddy-frontend: Improve generated files" ssl_ca_crt was mistakenly used
for client authentication, which is in reality not supported nor needed.

It came from misunderstanding of apache configuration.

custom_domain and server-alias on given slave do not have to clash, and
can be deduplicated during request parameter analysis.

/reviewed-on nexedi/slapos!444

Since caddy-frontend: Support wildcards the wildcards are supported.

server-alias and custom_domain can be wildcards, so support such case.

/reviewed-on nexedi/slapos!446

The assertion was fixed incorrectly.

By setting maxDiff to None the test failures are more explanatory.

authorised --> authorized

Because of checking slave id in a whole string, slaves which shall not be
authorized has been put on authorized list.

Example: -frontend-authorized-slave-string == "custom_http",
         slave_id = "custom" has been authorized.

As test_https_url proves, the separation of url and https-url is correctly
implemented.

The case where test runner is not enabled got broken in
2a457867

This time, we had test to prevent regression.

/reviewed-on nexedi/slapos!440

So that it renders correctly on https://pypi.org/project/slapos.cookbook

I checked with :
 * `python setup.py checkdocs`
 * `python setup.py check --restructuredtext`

as described on https://stackoverflow.com/questions/16367770/my-rst-readme-is-not-formatted-on-pypi-python-org

/reviewed-on nexedi/slapos!441

we are using trafficserver nowadays, varnish recipe is deprecated