[test] improve tag for server/test/unittest_storage.py Use class level tag.

[repo threads] Add several safety when looking for a callable name. We lookup __name__ attribute, then func_name attribute. object repr is a last fallback

[facets] support for `no_relation` on RelationFacet e.g. to filter en entities *without* a given relation as well as with a particular relation. Proposed or not by default according to relation cardinality. Also, try to guess i18nable properly from the schema by default.

[R] use dbhelper.binary_value to process passwords and other Bytes fields (instead of dbapi_module.Binary or hardcoding buffer()). This requires (esp. in serverctl) version 1.3.1 of logilab.database. Dependencies updated.

[3.10 migration] fix migration of cwproperties related to components/boxes

[schema] introduce some new sets categorizing entity/relation types and benefits from them where possible

backport stable

[schema] introduce new WORKFLOW_RTYPES set and use it to build SYSTEM_RTYPES/DONT_CHECK_RTYPES_ON_ADD/DONT_CHECK_RTYPES_ON_DEL sets

[rset] support for delitem on repeat list (may be necessary in pyro source)

merged timeline changes into default