Fixed multithreading issue with gnutls.

src/pokerth.cpp

@@ -75,8 +75,8 @@ int main( int argc, char **argv )
 
 	//_CrtSetBreakAlloc(49937);
 	socket_startup();
-	curl_global_init(CURL_GLOBAL_ALL);
-	
+	curl_global_init(CURL_GLOBAL_NOTHING);
+
 	/////// can be removed for non-qt-guis ////////////
 	QApplication a( argc, argv );