Closes #1947. Thanks to Patrick TJ McPhee.

Closes #1938. Thanks to apple3306 and JulianCaruso.

Closes #1936. Thanks to sectokia.

Closes #1939. Thanks to Frank Tegtmeyer.

This meant ciphers using DHE couldn't be used.

Closes #1925. Closes #1476. Thanks to Jonathan Sönnerup, Valerii
Demeshko, and sectokia.

This meant ciphers using DHE couldn't be used.

Closes #1925. Closes #1476. Thanks to Jonathan Sönnerup, Valerii
Demeshko, and sectokia.

Closes #1934. Thanks to sectokia.

apps: mosquitto_ctrl: don't hard set paths

In a cross compile environment, these paths will be added elsewhere, and
in a local environment, they should already be covered by the system
compiler.  Simply drop them.

Signed-off-by: Karl Palsson <karlp@etactica.com>

Closes #1831. Thanks to Tristan79 and andreas-kluge.