Socket::Socket: Don't throw a C++ exception
Socket::Socket: Don't throw a C++ exception

Fixes https://github.com/nteract/hydrogen/issues/515

(needs testing since I can't reproduce the issue in Hydrogen)
interpretor/zeromq.js,interpretor/zeromq.js,lgeiger/zmq-prebuilt,lgeiger/zmq-prebuilt,interpretor/zeromq.js,interpretor/zeromq.js,lgeiger/zmq-prebuilt,lgeiger/zmq-prebuilt,lgeiger/zmq-prebuilt,interpretor/zeromq.js