Releasing 4.1.0 rc1 and moving development master to 4.2.0.

Fix builds/msvc/Makefile.am to include all properties files in the build

Fix some typos

I attempted to fix up the properties files manifests in the Makefile,
but neglected the end-of-line escape characters.  It was good enough
to pass whatever make dist on Linux did, but I had no Windows build
env to test in.  The broken change was in commit de4a4422.
Signed-off-by: Dan Mick <dan.mick@inktank.com>

Correct libsodium inclusion.

Simplify libsodium inclusion

Reduce automake recursion; simplify pgm dependency

PVS Studio small fix

Fix V815 Decreased performance. Consider replacing the expression 'peer_address = ""' with 'peer_address.clear()'. stream_engine.cpp 99

Fix V815 Decreased performance. Consider replacing the expression 'options.socks_proxy_address != ""' with '!options.socks_proxy_address.empty()'. session_base.cpp 497

Fix V803 Decreased performance. In case 'it' is iterator it's more effective to use prefix form of increment.
    Replace iterator++ with ++iterator. stream_engine.cpp
    http://www.viva64.com/en/d/0165/print/

Remove build and runtime dependencies on uuid and uuid-devel.

Fix up spec build

Signed-off-by: Dan Mick <dmick@redhat.com>

Signed-off-by: Dan Mick <dmick@redhat.com>

Signed-off-by: Dan Mick <dmick@redhat.com>

Signed-off-by: Dan Mick <dmick@redhat.com>

Signed-off-by: Dan Mick <dmick@localhost.localdomain>

Signed-off-by: Dan Mick <dmick@redhat.com>

Signed-off-by: Dan Mick <dmick@redhat.com>

Problem : Build failed with MinGW on windows

Update NuGet package.

Problem: curve messages can be replayed

Solution: ensure message short nonces are strictly increasing and validate them

Problem: stream_engine.cpp security can be downgraded

Solution: accept only the mechanism defined by the socket options.

I've not tested this yet, so it's a speculative fix.

Problem: test_security_curve does't try wrong mechanisms

Solution: check that it rejects attempts to connect to a CURVE server
using NULL or PLAIN client.

Fix hang terminating PGM ZMQ_SUB (#822).