Modified so that longrequest logger values are converted into string during zope instanciation
erp5.mariadb: Fix typo in instance parameter documentation.
erp5.zeo: Drop unrealistic pattern from parameter schema.
erp5: Do not install a test runner when there are no test databases.
erp5: Explicitly reference certificate-authority.

Otherwise it's never evaluated, and in turn binary-link is not when unit
tests are disabled.
Also, follow surrounding coding style.
erp5: Fix missing CA directories.

Also, rename test CA directories so it's obvious they are designated for
tests.
Merge remote-tracking branch 'origin/master' into erp5-cluster

Conflicts:
	stack/erp5/instance-tidstorage.cfg.in