Problem: various errors in build scripts

- zmq_utils.h was removed
- udp_address.cpp and udp_engine.cpp were added

Solution: patch all affected build scripts

src/options.cpp

@@ -32,7 +32,6 @@
 #include "options.hpp"
 #include "err.hpp"
 #include "macros.hpp"
-#include "../include/zmq_utils.h"
 
 zmq::options_t::options_t () :
     sndhwm (1000),