Merge pull request #1078 from mkluwe/handle-WSAEADDRINUSE

handle WSAEADDRINUSE in tcp_connecter_t::connect

src/tcp_connecter.cpp

@@ -318,7 +318,8 @@ zmq::fd_t zmq::tcp_connecter_t::connect ()
             err == WSAENETUNREACH ||
             err == WSAENETDOWN ||
             err == WSAEACCES ||
-            err == WSAEINVAL)
+            err == WSAEINVAL ||
+            err == WSAEADDRINUSE)
             return retired_fd;
         wsa_assert_no (err);
     }