apply a change to LIBZMQ_DELETE macro (related to issue #1524)

define a macro for heap object deletion in a unified manner (related …

Container-based CI build

CI build does not fail when tests fail. Fix #1527

problem: new field is breaking existing code

problem: user cannot poll on thread safe sockets

fixed issue with ticket #1517 (wrong lib output name in MSVC CMake bu…

fixed issue with ticket #1517 (wrong lib output name in MSVC CMake build) and apply some improvements in CMake build system

changing some camelCase variable names to snake_case in previous commit

remove unnecessary multiple WSAGetLastError() calls

place a ZMQ_UNUSED macro and replace all unused variables with ZMQ_UNUSED macro

Problem: Missing src/ prefix for libzmq library in Makefile.am ...

Solution: Add prefix to fix test compilation

Problem: lack test case for large stream messages

Merge fix for zeromq/zeromq4-1#52, getsockopt ZMQ_RCVMORE now resets all bits

Check proxy return values in tests

Solution: specify the necessary EXTRA_DIST

I added a Makefile.am in builds that covers all systems except msvc,
which already has a Makefile.am that does this.

Fixes #1505

Solution: fix it. Default is true, not false.

Solution: added to test_stream.cpp

fix: ZMQ_TCP_RETRANSMIT_TIMEOUT not applied to bind socket