Merge pull request #11 from EckoEdc/patch-7

Correctly close socket on win32

src/dhtrunner.cpp

@@ -37,6 +37,7 @@
 #else
 #include <winsock2.h>
 #include <ws2tcpip.h>
+#define close(x) closesocket(x)
 #endif
 
 namespace dht {