Replace HFT files with modified code

Author: PuneetKohli

.DS_Store

@@ -16,8 +16,13 @@
 #include "algorithm"
 #include "lbfgs.h"
 #include "sstream"
+#include <set>
+#include <algorithm>
 //#include "gzstream.h"
 
+
+string USER_ID = "A00100742Q4O8VH0YMUBZ";
+
 /// Safely open a file
 FILE* fopen_(const char* p, const char* m)
 {