Use exit(1) instead of abort() for win32 release builds

lib/logvisor.cpp

@@ -168,8 +168,12 @@ void logvisorAbort()
 
     // If you caught one of the above signals, it is likely you just
     // want to quit your program right now.
+#ifndef NDEBUG
     signal(SIGABRT, SIG_DFL);
     abort();
+#else
+    exit(1);
+#endif
 }
 #else