Add ZeroMQ 4.2.3-p5

Update hunter.cmake

Update hunter.cmake

updated czmq

Merge remote-tracking branch 'upstream/master'

Merge branch 'feature.protobuf-update' into proto+zmq

Merge branch 'master' of https://github.com/fwinnen/hunter

# Conflicts:
#	cmake/configs/default.cmake
#	cmake/projects/ZeroMQ/hunter.cmake

updated zeromq

updated zeromq

updated zeromq