[db-api] fix typo leading to crash on client connection (config has no translations). Closes #2357044

[data import] allow a request to be given as argument, ease use from web ui

[datafeed] allow the xml datafeed parser to work with client-side connections

small doc updates

[ldapfeed] properly mark email address as encountered during import to avoid deleting them

[merge] backport stable

[server/utils] passlib 1.6 is now less tolerant wrt handler names (closes #2349330)

backport stable

[web] remove some unused imports

[selectors] make multi_columns_rset work with a simple list of lists

[server/hook] a tiny bit of doc about before_server_shutdown

[events] add a new before_shutdown event (closes #2345728)

[ldapparser] cleanup

[ldapparser] reapply dropped fix

[app] turn these info into debug logs (this being too chatty for .info)

fix static file serving when url has parameters (like cache busters do)

[repo test] Avoid hangs in zmq repo unit test - interaction through the zmq event loop from a different thread is only allowed through add_callback - notify the background thread when the client dies with an exception so it doesn't spin forever

[ldap] we may actually get back password from ldap

[ldapfeed, test] use default source config

[ldapfeed, test] use a safe internal session, as in real life

[datafeed] give a dictionary as sourceparams to avoid crash if attempt to import the user is done

[yams] Binary instance passwords should not be given to str()

[ldapfeed] don't crash if entity is None. Closes (superficialy) #2341266

[merge] backport stable fixes

[bin/clonedeps] fix NameError (closes #2334080)

[sources/native] do not let a log message crash on us

[merge] backport stable

[cwconfig] impose an order on appobject paths processing: entities first (closes #2330799)

[serverctl] avoid a crash if zmq-address is not defined/empty (config.get is a false friend wrt dict behaviour)

fix an horrible typo