message: Not all errors need be fatal.  ie, ospLoadModule may fail.
  remove exit(error) for any/all errors until better
  handler is developed
diff: @@ -46,7 +46,7 @@ inline void initializeOSPRay(int argc,
  // set an error callback to catch any OSPRay errors and exit the application
  ospDeviceSetErrorFunc(device, [](OSPError error, const char *errorDetails) {
  std::cerr << "OSPRay error: " << errorDetails << std::endl;
  - exit(error);
  + // exit(error); Not all errors need be fatal. ie, ospLoadModule may fail.
  });
  ospDeviceSetStatusFunc(device, [](const char *message) {
  