[entity] Entity.related(): add a targettypes argument (closes #2957313)
This allows to restrict the entity types returned by the method
(passed to cw_related_rql).
When such an argument is given, no caching happens.
if versions_map['cubicweb'][0] == (3, 7, 4):
config['http-session-time'] *= 60
config['cleanup-session-time'] *= 60
config['cleanup-anonymous-session-time'] *= 60