Log Message:
Update net/py-zmq to 16.0.2.

16.0.2
- Workaround bug in libzmq-4.2.0 causing EINVAL on poll.

16.0.1
- Fix erroneous EAGAIN that could happen on async sockets
- Bundle libzmq 4.1.6

16.0
- Support for Python 2.6 and Python 3.2 is dropped. For old Pythons, use
  :command:`pip install "pyzmq<16"` to get the last version of pyzmq
  that supports these versions.
- Include zmq.h
- Deprecate zmq.Stopwatch. Native Python timing tools can be used
  instead.
- Better support for using pyzmq as a Cython library - bundle zmq.h when
  pyzmq bundles libzmq as an extension - add
  :func:`zmq.get_library_dirs` to find bundled libzmq
- Updates to setup.py for Cython 0.25 compatibility
- Various asyncio/future fixes: - support raw sockets in pollers - allow
  cancelling async sends
- Fix :meth:`IOLoop.current` in :mod:`zmq.green`

15.4
- Load bundled libzmq extension with import rather than CDLL, which
  should fix some manifest issues in certain cases on Windows.
- Avoid installing asyncio sources on Python 2, which confuses some
  tools that run python -m compileall, which reports errors on the
  Python 3-only files.
- Bundle msvcp.dll in Windows wheels on CPython 3.5, which should fix
  wheel compatibility systems without Visual C++ 2015 redistributable.
- :meth:`zmq.Context.instance` is now threadsafe.
- FIX: sync some behavior in zmq_poll and setting LINGER on
  close/destroy with the CFFI backend.
- PERF: resolve send/recv immediately if events are available in async
  Sockets
- Async Sockets (asyncio, tornado) now support send_json, send_pyobj,
  etc.
- add preliminary support for zmq.DRAFT_API reflecting
  ZMQ_BUILD_DRAFT_API, which indicates whether new APIs in prereleases
  are available.

15.3
- Bump bundled libzmq to 4.1.5, using tweetnacl for bundled curve
  support instead of libsodium
- FIX: include .pxi includes in installation for consumers of Cython API
- FIX: various fixes in new async sockets
- Introduce :mod:`zmq.decorators` API for decorating functions to create
  sockets or contexts
- Add :meth:`zmq.Socket.subscribe` and :meth:`zmq.Socket.unsubscribe`
  methods to sockets, so that assignment is no longer needed for
  subscribing. Verbs should be methods! Assignment is still supported for
  backward-compatibility.
- Accept text (unicode) input to z85 encoding, not just bytes
- :meth:`zmq.Context.socket` forwards keyword arguments to the
  :class:`Socket` constructor

15.2
- FIX: handle multiple events in a single register call in
  :mod:`zmq.asyncio`
- FIX: unicode/bytes bug in password prompt in :mod:`zmq.ssh` on Python 3
- FIX: workaround gevent monkeypatches in garbage collection thread
- update bundled minitornado from tornado-4.3.
- improved inspection by setting binding=True in cython compile options
- add asyncio Authenticator implementation in :mod:`zmq.auth.asyncio`
- workaround overflow bug in libzmq preventing receiving messages larger
  than MAX_INT

15.1
- FIX: Remove inadvertant tornado dependency when using
  :mod:`zmq.asyncio`
- FIX: 15.0 Python 3.5 wheels didn't work on Windows
- Add GSSAPI support to Authenticators
- Support new constants defined in upcoming libzmq-4.2.dev

15.0
- PyZMQ 15 adds Future-returning sockets and pollers for both
  :mod:`asyncio` and :mod:`tornado`.
- add :mod:`asyncio` support via :mod:`zmq.asyncio`
- add :mod:`tornado` future support via :mod:`zmq.eventloop.future`
- trigger bundled libzmq if system libzmq is found to be < 3. System
  libzmq 2 can be forced by explicitly requesting --zmq=/prefix/.

14.7.0

Changes:
- Update bundled libzmq to 4.1.2.
- Following the lead of Python 3.5, interrupted system calls will be
  retried.

Fixes:
- Fixes for CFFI backend on Python 3 + support for PyPy 3.
- Verify types of all frames in :meth:`~zmq.Socket.send_multipart`
  before sending, to avoid partial messages.
- Fix build on Windows when both debug and release versions of libzmq
  are found.
- Windows build fixes for Python 3.5.

14.6.0

Changes:
- improvements in :meth:`zmq.Socket.bind_to_random_port`:
- use system to allocate ports by default
- catch EACCES on Windows
- include libsodium when building bundled libzmq on Windows (includes
  wheels on PyPI)
- pyzmq no longer bundles external libzmq when making a bdist. You can
  use delocate to do this.

Bugfixes:
- add missing :attr:`ndim` on memoryviews of Frames
- allow :func:`copy.copy` and :func:`copy.deepcopy` on Sockets, Contexts

14.5.0

Changes:
- use pickle.DEFAULT_PROTOCOL by default in send_pickle
- with the release of pip-6, OS X wheels are only marked as 10.6-intel,
  indicating that they should be installable on any newer or single-arch
  Python.
- raise SSHException on failed check of host key

Bugfixes:
- fix method name in utils.wi32.allow_interrupt
- fork-related fixes in garbage collection thread
- add missing import in zmq.__init__, causing failure to import in some
  circumstances