This facilitates easier testing.

Conflicts:
	ChangeLog.txt

Signed-off-by: Vinod Kumar <kumar003vinod@gmail.com>

This causes the client to exit immediately after its subscriptions are
acknowledged by the broker, and can be used to create a durable client
session without requiring messages to be delivered.

Closes #952.

For sending subscriptions to multiple topics in one command.

Closes #566.

Thanks to marleau.

Closes #600.

Fix duplicate clients being added to by_id hash before the old client
was removed.

Closes #645.

This occurred when a bridge connected for the first time and so made a
local subscription for outgoing topics.

Closes #701.

This reverts commit 6fc7cadb.

The signal handler thread on win32 did listen to 4 HANDLEs,
of which only 3 were initialized.
The result was 1 thread eating 100% cpu.
This commit reduces the HANDLE array storage.

Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>