Merge pull request #52 from hintjens/master

Backported fixes for LIBZMQ-458
Merge pull request #53 from hintjens/master

Fixed formatting on zmq_getsockopt.txt
Merge pull request #54 from hintjens/master

Backported fixes for LIBZMQ-464
Older versions of C compilers don't like C++ comments

There's no need to exclude older compilers by putting C++ style
comments in the C API header.

Signed-off-by: AJ Lewis <aj.lewis@quantum.com>
Merge pull request #55 from vortechs2000/remove_cpp_comments_from_zmq_h

Older versions of C compilers don't like C++ comments
Merge pull request #56 from hintjens/master

Backported fixes for LIBZMQ-459
Merge pull request #57 from hintjens/master

Backported fixes for LIBZMQ-465
Merge pull request #58 from hintjens/master

Addded ROUTER-ROUTER and DEALER-DEALER (back) as valid combinations
Merge pull request #59 from hintjens/master

Backported fix for LIBZMQ-450
Merge pull request #60 from hintjens/master

Fixed doc for SNDHWM
Merge pull request #61 from hintjens/master

Fixed doc for SNDHWM
Merge pull request #63 from hintjens/master

Added autogen.sh hint to INSTALL
Merge pull request #64 from hintjens/master

Backported fix for LIBZMQ-472
Merge pull request #65 from hintjens/master

Release 3.2.2 stable
Merge pull request #66 from hintjens/master

One fix to NEWS
Updated version to 3.2.3 for next stable release
Update SPEC file

Update the RPM spec file with Justin Cook's changes to fix the build for 3.2.2. (https://zeromq.jira.com/browse/LIBZMQ-473)
Merge pull request #67 from ianbarber/master

Update RPM spec file
Change NULL to 0 to keep compatibility with some cross-compiling GCC
versions
Merge pull request #68 from vperron/master

ARM toolchain compatibility