moved all diagnostic output onto stderr
moved all diagnostic output onto stderr

datasift/zmqpp,kernelim/zmqpp,xaqq/zmqpp,xaqq/zmqpp,kernelim/zmqpp,chenwenbin928/zmqpp,chenwenbin928/zmqpp,benjamg/zmqpp,sunkin351/zmqpp,zeromq/zmqpp,zeromq/zmqpp,pin3da/zmqpp,benjamg/zmqpp,pin3da/zmqpp,sunkin351/zmqpp,datasift/zmqpp