[test] use the new temporary_appojects CM to simplfy unittest_storage

[session] try to reconnect on unexpected error in system_sql. We need this for proper reconnection of pool used by hooks or looping task doing sql queries (such as cw_cleanup_transaction)

[source] log attempt to reconnect using warning level. Also, don't relog failed sql (already logged)

[test] avoid critical log by informing the source we consider Personne as a multi-sources type

[test] use new temporary_appobjects context manager

[test] that doesn't smell good but fix the test...

[vreg] we do want the opposite...

[testlib] simple helper method to register temporary appobjects (hooks for instance) with a context manager

[undo] fix transactions table name in cleanup operation

Add context management methode to dbapi.Connection the connection is automaticly closed when exiting the context.

i18n update

[i18n] use named substitution to avoid gettext warnings

[dataimport] print transaction id when we get one

[cleanup] add some notes

[optimisation] _select_best is used very intensivly. Peanuts optimization may count :)

[optimization] traced_selection is used very intensively in debug mode optimizing it is worth the pain. Basically : don't do stuff unnecessary when we don't trace anything.

[optimization] improve massive write performance by optimizing hooks selection profiling on some massive deletion showed up that 2/3 of the time was spent in hooks selection. Those changes make it much more acceptable (through selection is still not negligeable): * use one registry for each event, so we've much less hooks to check when emiting an event as well as no more need for the match_event selector. This required ability to put one appobject into several registries, using a __registries__ class attribute. * check for deprecated .enabled at registry initialization time instead of at selection time A very simple HooksManager class has been reintroduce to choose the right registry on call_hooks. Those optimisations leads to a ~x3 factor of time necessary to delete 16000 entities.

[upgrade] after upgrade, fork command to start instance avoid grave uicfg pb (explicit rules all removed...)

merge

[repo creation] removing existing entities of 'single' cardinality relatino should be considered as 'activeintegrity' hook. Also don't disable that category during repo creation to avoid pb such as two default workflows for one entity types

merge

handle Service Close request correctly (closes #736039) The windows event self._stop_event was not used, and twisted was not getting a chance of terminating cleanly by calling its shutdown event handlers (which would eventually call pyro_unregister). Fixed by calling reactor.stop()

[js form validation] fix case where we've None/null keys in the errors dictionnary

[cleanup] exists imported, use it

[form] CompoundField should not return itself in actual_fields, this avoid error on iliane with 3.7.2 where it's marked as required (from the schema) while value are provided by subfields

[repo] we want a hooks manager and hooks initialized event on quick start (we trigger events such as server_backup / server_restore for instance)

[distribution] sql extensions files now have proper extension, fix manifest file

backport stable