Merge pull request #76 from hintjens/master

Backported fix for LIBZMQ-497
Backport of test_connect_delay refactor
Merge pull request #77 from ianbarber/master

Backport of test_connect_delay refactor from master
Patch from Rob Gagnon, backport of test fix from master. Resolves LIBZMQ-462
Merge pull request #78 from ianbarber/master

Backport of test_last_endpoint shutdown fix, resolves LIBZMQ-462
Work around for LIBZMQ-496

The problem is that other threads might still be in mailbox::send() when
it is destroyed. So as a workaround, we just acquire the mutex in the
destructor. Therefore the running send will finish before the mailbox is
destroyed.

See also the fix for LIBZMQ-281 in zeromq2-x.

Signed-off-by: Mika Fischer <mika.fischer@zoopnet.de>
Merge pull request #79 from mika-fischer/workaround-for-496

Work around for LIBZMQ-496
[#LIBZMQ-446] Silence error on setting PGM_TOS due to some platforms raising an error at runtime.  Noted are RHEL 4.
Merge pull request #81 from steve-o/libzmq-446

[#LIBZMQ-446] Silence error on setting PGM_TOS on REL 4.
Back port fix for LIBZMQ-526

Fix syntax error
Merge pull request #82 from trevorbernard/master

Backport fix for LIBZMQ-526
Updated NEWS for 3.2.3
Bumped version number for next release 3.2.4
Add newline to end of test_connect_delay.cpp so it compiles with older versions of GCC
Various cleanups to test programs

 - Patch applied using git am from libzmq commit 5f009e52
 - tests/test_raw_sock.cpp doesn't exist in zeromq3-x, so that
   file was manually removed from the patch before 'git am'

Signed-off-by: AJ Lewis <aj.lewis@quantum.com>
Merge pull request #83 from vortechs2000/fix_323_builds

Fix 323 builds
Resolved merge conflict