[sr-dev] [kamailio/kamailio] presence: add option to return 200 instead of 202 on subscriptions (PR #2930)

[Juha Heinanen]

Laurențiu Nicola writes:

> I wasn't sure which RFC was implemented. Then we can change the
> default on `master` -- and _if_ we backport it to 5.5 we can leave the
> previous behavior as the default.

Yes, if backport is done, default to 202 for backwards compatibility.
In master default to 200 and add release note about the change.