Closes #2286. Thanks to Karl Palsson.

Closes #2289. Thanks to Poltorak Serguei.

Incoming QoS 2 messages that had not completed the QoS flow were not being
checked for ACL access when a clean session=False client was reconnecting.

Closes #575314.

An MQTT v5 client connecting with a large number of user-property properties
could cause excessive CPU usage, leading to a loss of performance and
possible denial of service. This has been fixed.

If a plugin had granted ACL subscription access to a
durable/non-clean-session client, then removed that access, the client would
keep its existing subscription. This has been fixed.

Closes #2271. Thanks to Karl Palsson.

Closes #2198. Thanks to Theo Buehler.

Threaded mode is deconfigured when the mosquitto_loop_start() thread ends,
which allows mosquitto_loop_start() to be called again.

Closes #2242. Thanks to Timo Lange.

Closes #2244. Thanks to alflexRH.

Closes #2241. Thanks to Bryan Pearson.

Closes #2283. Thanks to Heath Raftery.

Closes #2277. Thanks to LeSuisse.

Closes #2281. Thanks to Matt Turner.

Produce an error if a TLS-PSK client tries to connect to a broker
that is not configured with TLS-PSK.

This would happen with a corrupt/crafted configuration file. Unless your
configuration file is writable by untrusted users this is not a risk.

Closes #567213. Thanks to Roland Sako.

Haiku build fixes

Signed-off-by: begasus <begasus@gmail.com>

This is so binary payloads are not modified when printing.

Thanks to Steve Mullock.