- Change "$SYS/broker/heap/maximum size" to "$SYS/broker/heap/maximum" for
-- Don't always attempt to call read() for SSL clients, irrespective of whether
- they were ready to read or not. Reduces syscalls significantly.
- Topics are no longer normalised from e.g a///topic to a/topic. This matches
the behaviour as clarified by the Oasis MQTT spec. This will lead to
unexpected behaviour if you were using topics of this form.