- Running mosquitto_passwd with the following arguments only
`mosquitto_passwd -b password_file username password` would cause the
username to be used as the password.
- Fix excessive CPU use on non-Linux systems when the open file limit is set
high. Closes #1947.
- Fix LWT not being sent on client takeover when the existing session wasn't
being continued. Closes #1946.
- Fix bridges possibly not completing connections when WITH_ADNS is in use.
- Fix QoS 0 messages not being delivered if max_queued_messages was set to 0.
- Fix local bridges being disconnected on SIGHUP. Closes #1942.
- Fix slow initial bridge connections for WITH_ADNS=no.
- Fix persistence_location not appending a '/'.
- Fix mosquitto_sub being unable to terminate with Ctrl-C if a successful
connection is not made. Closes #1957.
- Fix `mosquitto_passwd -b` using username as password (not if `-c` is also
used). Closes #1949.
- Fix `install` target when using WITH_CJSON=no. Closes #1938.
- Fix `generic` docker build. Closes #1945.