detect os type in order to build module on linux
detect os type in order to build module on linux

dfsxdev/node-zookeeper,mdlavin/node-zookeeper,yfinkelstein/node-zookeeper,mdlavin/node-zookeeper,uber/node-zookeeper,mdlavin/node-zookeeper,kuebk/node-zookeeper,kuebk/node-zookeeper,yfinkelstein/node-zookeeper,uber/node-zookeeper,dfsxdev/node-zookeeper,mdlavin/node-zookeeper,uber/node-zookeeper,dfsxdev/node-zookeeper,uber/node-zookeeper,dfsxdev/node-zookeeper,kuebk/node-zookeeper,mdlavin/node-zookeeper,yfinkelstein/node-zookeeper,kuebk/node-zookeeper,kuebk/node-zookeeper,dfsxdev/node-zookeeper,kuebk/node-zookeeper,yfinkelstein/node-zookeeper,uber/node-zookeeper