[server] Rename Repository's init_cnxset_pool method bootstrap See the (removed) docstring for a rationale...

[server] Replace server config's init_cnxset_pool attribute by a "bootstrap" parameter in Repository This 'init_cnxset_pool' class attribute is actually used to control whether a Repository instance should be "bootstraped" (see Repository.init_cnxset_pool() for a definition of "bootstrap") or not. I seems clearer to me to have this controlled by a boolean "bootstrap" initialization parameter in Repository.

[server] Drop close/open steps in NativeSQLSource.restore() The only place where this is called is in ServerMigrationHelper.restore_database() where config.init_cnxset_pool is set to False. So these steps appear to be useless.

[skel] Fix rpm's .spec file skeleton It's broken for new-style packages since it doesn't consider (even remove) python packages.

[server] Move "starting repository..." message where this actually happens

[server] Initialize Repository without a tasks manager in ServerMigrationHelper.restore_database() We don't need a tasks manager here I think. Thus instantiate the Repository from its class directly instead of using config.repository() which set a tasks manager.

[server] Fix a typo in log message in Repository.init_cnxset_pool()

[cwconfig] Issue a warning if a configuration module cannot be loaded We already do this when loading ctl plugin modules, so make things symmetrical for config modules.