fix server bind bug

lib/server.js

@@ -98,7 +98,7 @@ server.prototype.start = function(){
 	bind_parts[1] = this.bind;
     } else{
 	if(!~this.bind.indexOf(":")){
-	    bind_parts = [this.bind, "0.0.0.0"];
+	    bind_parts = ["0.0.0.0", this.bind];
 	} else{
 	    bind_parts = this.bind.split(":");
 	}