libcody: Add netinet.h

We explicitly need to inlude netinet.h, (despite what happened on my test systems)

	libcody/
	* netclient.cc: Add netinet.h.

libcody/netclient.cc

@@ -13,6 +13,7 @@
 #include <netdb.h>
 #include <unistd.h>
 #include <arpa/inet.h>
+#include <netinet/in.h>
 #include <sys/un.h>
 
 #ifndef AI_NUMERICSERV