Update XREQ to DEALER and XREP to ROUTER
Update XREQ to DEALER and XREP to ROUTER

swn1/pyzmq,ArvinPan/pyzmq,Mustard-Systems-Ltd/pyzmq,caidongyun/pyzmq,dash-dash/pyzmq,dash-dash/pyzmq,dash-dash/pyzmq,yyt030/pyzmq,ArvinPan/pyzmq,Mustard-Systems-Ltd/pyzmq,swn1/pyzmq,swn1/pyzmq,yyt030/pyzmq,Mustard-Systems-Ltd/pyzmq,ArvinPan/pyzmq,yyt030/pyzmq,caidongyun/pyzmq,caidongyun/pyzmq