Closes #1424, #1425. Thanks to JinPingChng and peteakalad.

Closes #1415 and #1422. Thanks to Karl Palsson, Till Zimmermann and Liam Fry.

Also update client documentation about automatic client ids.

Closes #1418. Thanks to Lichard Torman.

When attempting to update a user that does not exist.

Closes #1414. Thanks to kdgde.

Closes #1412. Thanks to Ryan Shaw.

This occurs when only websockets listeners are defined.

Closes #1391. Thanks to stopak.

Closes #35.

Closes #1374. Thanks to Jeff Trull.

Fix usage of tls_engine and tls_keyform.

Add missing EXPOSE instruction to all Dockerfiles

Signed-off-by: Heiko Bornholdt <bornholdt@informatik.uni-hamburg.de>

The current implementation does not properly forward the engine
parameters to OpenSSL causing OpenSSL to incorrectly attempt to open the
engine key uri as a file.

Sponsored-by: Trimble, Inc.
Signed-off-by: Matt Woelfel <matt@woelfware.com>

Closes #1406. Thanks to pbrenna.