[web auth] remove assertion, we may want to remove authentication info retreivers to disallow login from the web ui

merge

ask pyro group config questions for all-in-one config site when pyro is enabled in serverctl.py, the pyro questions are not asked for all-in-one configs, because this is webctl.py's responsibility. However for a all-in-one instance, repo_method is "in-memory" so the pyro questions would not be asked even if pyro had been explicitely enabled before.

enforce use of environment variables when running as a service CW_INSTANCES_DIR, CW_INSTANCES_DATA_DIR, CW_RUNTIME_DIR must be positionned at the system level. This will ensure that cubicweb-ctl commands issued on the computer will use the proper directories.

added db-extra-arguments to configuration parameters for native source

Added tag cubicweb-debian-version-3.8.1-1 for changeset eb972d125eef

Added tag cubicweb-version-3.8.1 for changeset 1e074c6150fe

cubicweb-ctl create improvements * list sqlserver2005 as supported database * tell that each name must have a unique name * pass the input level to other sources that we want to configure

3.8.1

backport stable