[web session] fix session handling so we get a chance to have for instance the 'forgotpwd' feature working on a site where anonymous are not allowed fix several pbs: * we need a session id and a session cookie anyway, else subsequent http queries are unrelated * this imply some changes in the session attribution workflow for session without a cnx * some views/selectors must be fixed for cases where session has no cnx On the way, avoid unnecessary Redirect on successful login. closes #750543

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sync_schema_props_perms('CWSourceHostConfig', syncperms=False)

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sql('INSERT INTO cw_source_relation(eid_from, eid_to) '

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    'SELECT e.eid,s.cw_eid FROM entities as e, cw_CWSource as s '

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    'WHERE s.cw_name=e.source AND NOT EXISTS(SELECT 1 FROM cw_source_relation WHERE eid_from=e.eid AND eid_to=s.cw_eid)')

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commit()