Thanks to Allan Kobelansky.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=483979

Thanks to Steve Woods and Roman Bogus.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=484693
Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=479143

This reverts commit 8f54cde2.

This works through $CLIENT/direct/<client id>, using the
allow_direct_messages option.

Fix in 1.4.3 was incomplete.

Thanks to Guido Hinderberger et al.

Fix possible memory leak if bridge using SSL attempts to connect to a
host that is not up.

Thanks to Ed Morris.

Thanks to Jan-Piet Mens.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=478917

If the socket pair is still opened on reconnect, close it before
creating it again (just like the state variables). Otherwise, these
sockets are leaked on multiple mosquitto_connect() calls.

Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>

Conflicts:
	CMakeLists.txt
	ChangeLog.txt
	config.mk
	installer/mosquitto.nsi
	installer/mosquitto64.nsi
	lib/mosquitto.c
	lib/mosquitto.h
	src/loop.c

Thanks to Karl Palsson.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=475707