win32: fix Event handle leak

Pull upstream OpenPGM 5.2.122 for multi-platform minor fixes.

returns -1 with EAGAIN when mandatory is set and pipe is full

return EHOSTUNREACH at full only when mandatory is set

returns EHOSTUNREACH when a peer is full if ZMQ_ROUTER_MANDATORY is set

fix wrong boolean operator in router_raw test code

Close pipes for inproc sockets on zmq_disconnect

- fixes LIBZMQ-476 and LIBZMQ-475

Simplify test_connect_delay

Simplify the test connect delay test script, removing the threads and
moving to a serialised version. AFAICS this should provide the same
test, but without the race conditions that happened with the previous
test.

Tiny fix

versions

Update RPM 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)

Event message memory corruption fixes

Added autogen.sh hint to INSTALL

Check decoder's state function for NULL before calling it

Fixes bug reported by Peter Friend
(http://lists.zeromq.org/pipermail/zeromq-dev/2012-November/019425.html)

Add ZMTP link to zmq_tcp doc. 

Include a note with a link to ZMQ RFC 15 for the ZMTP protocol
description.

Fixed doc for SNDHWM

Copy monitor specific event endpoints to event messages as the engine etc. can be released at anytime

This reverts commit 1a18c7b0, reversing
changes made to bef9a41b.

[LIBZMQ-450] Copy the stream engine endpoint - string reference caused memory corruption