Dot not move longrequest-logger parameters out yet, as they belong to
another section.

Escaping is right, but "raw" context entry type does not de-serialise, so
deadlock debugger password was stored in an unintended format. Moving
deadlock_debugger_password to a buildout section involves required magic.
Move other parameters for consistency.
Also, honour deadlock_path parameter, which was previously ignored.

Not perfect yet, as some strings end in configuration files for example
and need escape mechanisms aware of individual configuration file syntaxes.

Also, generate password randomly if not provided instead of using an
hardcoded value.
Publish them as they can be generated internally.

otherwise buggy slapos.core-1.0 will be used if exists.

Fixes backend maxconn value: it's now equal to zope's number of threads.
Instead, generate configuration file from template and wrapper from
stand-alone recipe.
One local-only feature is lost: haproxy-ctl command is not present, but its
usage should be rare enough to not be a problem now. Socket is present
anyway, so any tool able to access a unix socket would do (ex: socat).

Before, a random password was generated for each group of zopes.

Also, rename test CA directories so it's obvious they are designated for
tests.

Otherwise it's never evaluated, and in turn binary-link is not when unit
tests are disabled.
Also, follow surrounding coding style.

This work has nothing to do in erp5-component branch, and is preventing it
from being merged to erp5 banch more often.
Conflicts because of non-reverted
6d1a9805 have been resolved to that its
intent is preserved with non-cluster ERP5 SR.

This reverts commit 77976a14.
This reverts commit 7aa1d92c.
This reverts commit 80062015.
This reverts commit 36ed58f2.
This reverts commit 1fe3f466.
This reverts commit 7731726a.
This reverts commit eb2016c4.