fixed zmq version check for xpub/xsub sockets.
fixed zmq version check for xpub/xsub sockets.

Signed-off-by: Johny Jose <8968890d4fe70c4ea5fda2668731500b3144a1d1@playlyfe.com>

reunanen/zeromq.node,marchon/zeromq.node,rgbkrk/zmq-prebuilt,ronkorving/node-zmq,tempbottle/zeromq.node,JustinTulloss/zeromq.node,ValYouW/zeromq.node,ronkorving/zeromq.node,GrabCAD/zeromq.node,kkoopa/zeromq.node,f34rdotcom/zeromq.node,muut/zeromq.node,rgbkrk/zmq-prebuilt,rydn/zeromq.node,ronkorving/zeromq.node,ValYouW/zeromq.node,muut/zeromq.node,hhamilto/zeromq.node,JustinTulloss/zeromq.node,marchon/zeromq.node,reunanen/zeromq.node,reqshark/zeromq.node,rgbkrk/zmq-prebuilt,rgbkrk/zmq-prebuilt,JustinTulloss/zeromq.node,kkoopa/zeromq.node,panuhorsmalahti/zeromq.node,ronkorving/node-zmq,interpretor/zeromq.js,f34rdotcom/zeromq.node,lgeiger/zmq-prebuilt,interpretor/zeromq.js,GrabCAD/zeromq.node,lgeiger/zmq-prebuilt,interpretor/zeromq.js,marchon/zeromq.node,hhamilto/zeromq.node,muut/zeromq.node,reqshark/zeromq.node,ValYouW/zeromq.node,tempbottle/zeromq.node,marchon/zeromq.node,panuhorsmalahti/zeromq.node,lgeiger/zmq-prebuilt,ronkorving/node-zmq,JustinTulloss/zeromq.node,ronkorving/zeromq.node,hhamilto/zeromq.node,ValYouW/zeromq.node,lablup/zeromq.node,lablup/zeromq.node,f34rdotcom/zeromq.node,kkoopa/zeromq.node,reunanen/zeromq.node,muut/zeromq.node,GrabCAD/zeromq.node,panuhorsmalahti/zeromq.node,lablup/zeromq.node,rydn/zeromq.node,tempbottle/zeromq.node,f34rdotcom/zeromq.node,GrabCAD/zeromq.node,kkoopa/zeromq.node,interpretor/zeromq.js,rydn/zeromq.node,reqshark/zeromq.node,lgeiger/zmq-prebuilt,reunanen/zeromq.node,rydn/zeromq.node,lgeiger/zmq-prebuilt,interpretor/zeromq.js,ronkorving/zeromq.node,rgbkrk/zmq-prebuilt,lablup/zeromq.node,panuhorsmalahti/zeromq.node,reqshark/zeromq.node,ronkorving/node-zmq,hhamilto/zeromq.node,tempbottle/zeromq.node