Default TTL to null, or Never Expire
Default TTL to null, or Never Expire

We want to default TTL to null, to ensure the Session never expires in the database, as this should be handled by the session cookie itself in ExpressJS. However, this value is still overrideable, should you want to set an explicit TTL for the Session record in Couchbase.
christophermina/connect-couchbase,DIREKTSPEED-LTD/connect-couchbase,korczis/connect-couchbase